Subject NOT available

6. The number of buckets to be selected for carrying out the leakage test for different lot sizes shall be as follows:—

Sample size Number

Lot size Dozen

20 and below 2T to 40 41 lo 1 00 . . .. T OI to 3 00 . . ..

20 30 55 75

7. Each bucket shall carry the name of manufacturer, country of origin, size (It shall bo denoted by its diameter at the top) and its capacity.

Specification for Padlocks

1. Material

1.1. The locks shall be manufactured from such materials which will ensure safe handling and reasonable life in actual usage. Some of the common materials used for locks and the requirements to be met by them are indicated in the subsequent clauses.

1.2. Mild Steel.—The mild steel used in the manufacture of Padlocks shall be such thai the finished components, such as that front and back plates, bodies, shackles, rivets, pins and keys shall satisfy the following bend test:

The part when cold shall withstand, without developing cracks, being doubled over either by pressure or by blows from a hammer until the internal radius is equal to the diameter thickness of the part and the sides are parallel.

1.3. Brass Wire and Phosphor Bronze Wire,—Brass wire and phosphor- bronze wire used in the manufacture of spring shall satisfy the following test:

The lever spring shall be fitted into the lever and shall be pressed down so as to touch the top edge of the lever and released. This shall be repeated six times. At the end of the test, the spring shall regain its original position.

1.4. Galvanized Mild Steel Wire-The galvanized mild steel wire used in the manufacture of rivets for galvanized iron padlocks shall satisfy the following test: "The wire shall withstand, without fracture, coiling round a rod of its own diameter eight times and being uncoiled."

2. Shape

2.1. The shape, design and mechanism of locks shall be subject to agreement "between the buyer and the seller.

3. Non-Interchangeability

3.1. The locks shall be manufactured so as to have non-interchangeable keys in a batch consisting of a minimum of 50 locks. In case non-interchangeability in a larger number is required, it shall be so specified by the purchaser at the time of placing the order.

3.1.1. When a demand for a lessor number of locks than that required for non- jnterchangeability in accordance with 3.1 is placed, the locks shall be non-inter- changeable to the extent of the demand.

4. Durability

4.1. All the components of the locks shall be manufactured so as to be durable and safe in handling.

5. Keys

5.1. The keys shall be made of mild steel, leaded Tin Bronze and shall be either of the female or male type as specified by the purchaser. The wards shall be evenly cut, clearly defined and free from burrs. The engaging ends of the key wards shall be rounded.

6. Levers

6.1. False (Dummy) levers shall not be used. The levers shall work without any appreciable friction or shake on the pivot pin. The holes and slots in the levers shall be free from burrs. A cover plate made of cast brass or sheet brass or mild steel shall also be provided when the levers do not completely fill the whole depth of the body.

7. Workmanship and Finish

7.1. All components of the locks and the keys shall be finished smooth to minimise frictional resistance in their working.

7.2. Unless specified otherwise, brass locks and keys shall be finished smooth and given a coat of lacquer. The shackle and key for brass padlocks, shall, how- ever, be finished bright.

8. Test for Soundness

8.1. Each padlock when closed shall be held by shackle and five sharp blowa shall be given on to a lead block with that side of the padlock on which the shackle is reveted. Now open the padlock and repeat the above test by striking with the opposite side of the padlock.

8.2. During or on completion of the test the padlock shall not show any sign of damage or defective functioning of padlock.

9. Marking

9.1. Each lock shall be stamped with the following information:

(a) Manufacturer's name or trade mark; (b) Number of levers; (c) Size of lock; (d) Serial number of the lock; and (e) Year of supply, if specified by the purchaser.

9.2. The key shall be stamped with the serial number of the lock to which it relates-

10. Packing

10.1. Each lock along with the keys shall be wrapped/in a thin paper and pack- ed in a cardboard box as per the requirement of the buyer. Each box shall be marked with the following information:

(a) Manufacturer's name or trade mark; (b) Type of lock, (c) Size of lock, and (d) Quantity in the package.

Specification jor Copper Utensils

1. The utensils shall be manufactured from copper sheet or strip which is having clean and smooth surface free from black oxide, undue discolouration and scratches. The sheet shall also be free from buckles and sponpam^s. Fur- ther a test piece taken, from a sheet shall meet the following bend test:

"The edges of tho test piece shall be carefully rounded and smoothed longitudinally. The size of the test piece snail be sufficient to enable the double close-bend test to be carried out. The lest piece shall be bent through an angle of 180°, closod and flattened. The double thick- ness of metal shall then bo bent through 180°, closed and flattened; the axis of the second being at right angles to that of the first bend. Ihe material shall show no fracture or signs of cracking on the convex surfaces of the bends."

2. All joints shall be soundly brazed/soldered and a suitable leak test will be carried out on each utensil to ascertain its leakproofness.

3. All joints shall be finished with high degree of smoothness.

4. Thickness of sheet (gauge) to be used for the fabrication of utensils, shape, dimensions and other conatructural details shall be subject to agreement between buyer and the seller.

SEC fl(il)] THE G^ZE^Tf 01? INPIA VJL'FqAOltlipili.W $)A£

5. All the utensils should be finished smooth and sharp edges rounded off/deburred.

6. Cent per cent visual inspection of all the utensils shall be carried out and those having any defect shall be rejected.

7. Utensils may be tinned/plated, if required by the buyer. Tinning/plating in this case shall be smooth and uniform.

8. Utensils shall be packed as per requirements of the buyer. Otherwise they should be packed to ensure safe arrival of the utensils to the destination with- out any demage.

9. The sample size for inspection and/or test for the abovermentioned clauses shall be as given below:

No. of defectives Clause No. of the specification

Sample size

permissible

.

i 2

. io% of the lot . Cent percent . io% of the lot

Do.

Nil Nil Nil Nil Nil

. 25% of the lot . 25% of the lot

3% of the lot 3 4 5 7

Specification for Forks (Table, Fish, Pastry and Serving), Brass, Nickel Silver and

Stainless Steel 1. The Forks shall be manufactured from brass or Nickel Silver or Stainless Steel.

2. The most common types of the forks are given below

(a) Table Fork (b) Fish Fork (c) Pastry Fork and (d) Serving Fork.

3. Shapes and dimensions of forks shall be subject to agreement between the buyer and the seller.

4. The forks shall be manufactured in one piece either with solid handle forged or cast with prongs or pressed into shape. The forks may be manufactured also with hollow handle or with plastic handle. The design of the handles shall be as agreed to between the buyer and the seller. When spoons, forks and knives are required to be supplied in sets, the designs on the handle and general appear- ance of the items in a set shall match.

5. Forks shall also meet with the following constructional details,

(a) The forks with solid or pressed handles shall be made in one piece. The fish forks with hollow handles shall have the prongs forged and the tangs well drawn. The joints shall be silver soldered in case of Nickel silver hollow handles and welded in case of stainless steel hollow handles. Where the plastic handles are cast, they shall be soundly moulded with the tang in position. The tang shall be pro- perly shaped and grooved.

(c) The forks shall be free from burrs, seams, cracks or other manufactur- ing defects. All edges shall be well rounded off. The prongs shall be evenly tapered to the point. The shank and plate containing the prongs shall be in good alignment.

(d) The forks may be supplied plated if required by the buyer. In this

caae the plating shall be uniform.

6- For Bending Test, the fork shall be held rigidly from the extreme end of the shank and supported in the middle of the overall length in such a way that it is approximately horizontal. A load of one kilogram in case of pastry fork and a loan of 1.5 kg. in case of table, fish and serving forks shall then be applied at the extreme end of the prongs for two minutes and then removed. The perma- nent deflection after removal of load shall not exceed 8 mm.

7. Each form shall be marked with the name of the manufacturer, country, material, etc. etc. Further this information appear in carton containing the forks.

8. The number of the forks to be selected from a lot for ascertaining conform- ity to the requirements of this specification, shall be as given in the Table,

TABLE F OR S A M P L I NG

Permissible Sub-

Sample size

No. of forks in a lot

No. of sc

imple-sizc

Permissible No. of defectives

defectives

c

5 13 3^ 50 BO

4 6 8 12

0 0 0 0 1 1

0 1 3 5 7 10

125 2 00

16 20

Upto ;o . .. 51 to 1 50 . .. 1 5 1 — 5 00 501—1000 1001—3000 3001—10000 10001—above

•

Specification for Tower Bolts '

1. The tower bolts should be manufactured out of the following materials;

Ca) Mild Steel (b) Cast Iron (c) Malleable Cast Iron. (d) Brass

(i) Cast Brass (ii) Rolled Brass

"(iii) Extruded Brass

2. Tower Bolts when manufactured out of mild steel sheets shall conform to /the following test:

"Suitable test pieces of the Milk Steel Sheets when cold shall withstand without fracture, being doubled over, either by pressure or by blows from a hammer until the internal radius is equal to li times the thickness of the test piece and the sides become parallel.

3. General.—The tower bolts shall be well made and shall be free from •defects. The bolts shall be finished to the correct shape and shall have a smooth action. All screw holes, shall be countersunk to suit the countersunk head wood screws. All sharp edges and corners shall be removed and finished smooth.

Barrel and skeleton tower bolts, wherever possible, shall have knob integral with the bolts. In case it is not possible to provide a single piece constructions of bolt, the knob may preferably be fitted to the bolts with a pin or, alternatively, screwed and riveted to the bolts and finished flush. The knob shall be of the .same material as the bolt.

Semi-barrel tower bolts shall have integral know which may be round, half- round, spherical or conical, of z-obust construction as specified by the purchaser.

Barrel Tower Bolts.—Barrel made from sheet shall be properly pressed to shape- Cast barrel shall be free from casting and other surface defects, Mild steel bolt shall be made from mild steel round bar and brass bolt from rolled or drawn brass rod. Extruded sections of aluminium alloy and brass shall be free from defects. Non-ferrous metal tower bolts shall each be provided with a small spring and a ball on the inside of barrel to enable smooth working.

Semi-Barrel Tower Bolts-Mild steel forged bolts shall be made from mild steel round bars forged and finished to shape and polished bright before assembly.

The malleable cast iron and cast iron bolts shall be cast to correct shape and shall be free from casting and other surface defects. Bolts shall bo polished bright before assembly. The plates and the straps after asaembly shall be firmly riveted.

Skeleton Tower Bolts—The staples and plate in the case of mild steel skeleton tower bolts shall be made from, mild steel sheet. The staples and plate of non- ferrous metal shall be free from casting or other defects.

4. Unless otherwise specified, tower bolts shall have finish as given below:

(a) Barrel Tower Bolts.

(1) Mild steel tower bolts—Bolts bright finished or plated as specified by the purchaser and barrel and socket stove enamelled black.

(2) Brass tower bolts—Bolt and barrel polished or plated as specified by the purchaser.

(3) Aluminium alloy tower bolts—Bolt and barrel anodlzed. The anodic film may be either transparent or dyed aa specified by the purchaser, (4) Zinc alloy tower bolts—Bolt and barrel oxidized, bronzed or plated as specified by the purchaser.

(b) Semi-Barrel Tower Bolts.

Mild steel semi-barrel tower bolts—Both bright finished or¹ plated and other parts stove enamelled black.

(c) Skeleton Tower Bolts.

(1) Mild steel skeleton tower bolts—Bolt bright finished or plated and plate an^ stnples stove enamelled black.

(2) Brass skeleton tower bolts—Bolt, plate and staples bright finished.

(3) Aluminium alloy skeleton tower bolts—Bolt, plate and staples ano- dized. The anodic fllm may be either transparent or dyed as specified by the purchaser.

(4) Zinc alloy skeleton tower bolts—Bolt, plate and staples oxidized, bronzed or plated as specified by the purchaser.

B. Each tower bolt shall be clearly marked with the name of manufacturer or trade-mark,

6. Barrel tower bolts shall be suitably packed in cartons- Each carton shall bear a label showing the name nf the manufacturer or trade-mark, type, size and quantity of bolts. Aluminium tower bolts shall be individually wrapped with tissue paper or polythene film.

Semi-barrel tower bolts shall be wrapped in strongpaper in bundles each con- taining 12 bolts only upto 150 mm size and 6 bolts only above 150 mm. Each, packet shall bear a label showing the name of the manufacturer or trade-mark type, size and quantity of tower bolts.

Skeleton tower bolts of ferrous metal shall be wrapped in strongpaper in bundles each containing 6 bolts. Skeleton tower bolts of non-ferrous metal shall be suitably packed and the aluminium alloy bolts shall be individually wrapped with tissue paper or polythene fllm. Each packet or carton shall bear a label showing the name of the manufacturer or trade-mark, type, size and quantity of tower bolts.

7. In any consignment, all the tower bolts of the same type and size and manu- factured at the same time, shall be grouped together to constitute a lot.

The number of tower bolts, to be selected from a lot, shall depend upon the size of the lot and shall be in accordance with the table given below:

These tower bolts shall be selected at random from at least 10 per cent of the packets subject to a minimum of three, equal number of tower bolts being selected from each such packet.

C R I T E R I ON F OR C O N F O R M I TY

SCALE OF SAMPLING AND

Sample-Size

Lot-Size

Permissible Number of Defective Tower Bolts

n

N

{{^{{FOOTNOTE (2)}}}}

( i)

(3)

0

1

² Up to 2 00 . . .. 2 01 to 3 00 301 to j oo ; oi to Boo 800 a nd above . . ..

2 3

15 20 30 40 S5

Specification for Oil Pressure Lanterns

1. The materials used in the manufacture of different parts of oil pressure lantern shall be such that they ensure safe handling and good performance of the pressure lantern throughout its reasonable life.

2- Design, dimensions and construction of lantern should be according to the

agreement between the buyer and the seller.

SEC. a (ii)] THE t&t£tiE C(F tNblX EXTRAOflfllNARY ^

4. One fuel container, without burner, pump valve and pressure gauge, shall be selected at random out of a lot of 500 or part thereof. It shall be subjected to an internal hydraulic pressure of 6 kgf/cm2 for a period of 5 minutes. The container shall not show any sign of leakage, The container tested for safety pressure shall be further subjected to a hydraulic pressure of 8 lagt/cm* it shall neither burst nor unduly distort. Slight leakage of the hydraulic fluid shalL however, be permissible, provided the pressure is capable of being maintained for a duration of not less than five minutes.

5. The mean horizontal luminous intensity of the lantern, when determined by the method described in Appendix to this clause shall be not less than the rated luminous intensity of the lantern given in the candles.

6. The lighting efficiency of lanterns, which is the ratio of the mean horizon- tal candle power to the weight m grams of fuel consumed per hour, shall be not less than 3 for all sizes of lanterns,

7. The surface temperature of any part of the lantern that may be necessary to touch during its operation shall not exceed 60 degrees C, and shall preferably be lower. The length of the carrying handle shall be such that when a piece of black card, 100 x 50 mm, is held horizontally 25 mm below the top of the handle in still air, the black card shall not attain a temperature exceeding 66 degrees C.

8. The lanterns shall function properly if exposed to a wind of 70 km/h for a period of not less than 30 minutes.

9. The lanterns shall be stamped with their rated luminous intensity in candles; the name of the manufacturer or his registered trade-mark, if any; and the name of the country of origin.

10. Each lantern shall be supplied with:

(a) a spirit can, lb) a spanner, (c) a nipple, (d) two cleaning needles, (e) an oil cap washer, (f) three mantles, Cg) a needle key, (h) a pump washer, and (j) a pamphlet containing manufacturer's instructions for use.

11. Each lantern, with its spares and accessories, shall be packed in a strong cardboard box, the hood being protected by a cardboard ring. For transit 12 such lanterns in carboard boxes shall be packed in a strong wooden case.

12. Sample size for inspection and/or test for different clauses above shall be as follows:

Clause No. of the specification

3CeJ 3(f) 3fg) . . . 30) 3fk) 3(i) 4 . ..

f . .. t> . .. 7 . .. B . ..

No. of Defectives Sample size permissible

io% Nil 5% 3% i o%

5% 5% r in a lot of

500

z ¹ /o 2%

APPENDIX TO CLAUSE NO. 5

Measurement of mean horizontal luminous intensity

5-1. Photometric Equipment.

5-1.1- The mean horizontal luminous intensity of the lantern shall be measur- ed against a metal filament sub-standard electric lamp, mounted on a standard photometer bench, with a suitable form of photometer head.

5-2. Procedure far measurement.

5-2.1. The fuel container of the lantern shall contain approximately 75 per cent of the amount of fuel held when full, and the glass globe of the lantern shall be cleaned before the commencement of the test.

5-2.2, The lantern shall be lit and allowed to burn at the working pressure of 2 kgf/cma for at least half-an-hour to attain a steady condition.

5-2.3. The lantern shall be monuted on a table fixed in one of the carriages; of the photometer bench. The middle portion of the flame, photometer head, and the sub-standard electric lamp, shall be in the same horizontal plane and the photometer head shall be placed perpendicular to the incident light from the flame head. The sub-standard lamp and the photometer head shall be kept fixed at any convenient position on the bench-

5-2.4, The lantern shall be moved to and from one side of the photometer head, until the position of balance is found. Measurement shall be made in a horizontal plane by changing the position of lantern in four directions, at right angle to the axis of the appliance, differing by 95°. A number of readings ii* each direction shall be taken and the average of all these measurements in the four directions shall be taken as the final value,

5-2.5. The termperature and the relative humidity of the test room shall be reported along with the tests.

Specification for Mild Steel Wire Nails

1. Nails shall be manufactured from mild steel wire, Suitable test pieces- when cold shall not break or develop cracks when doubled over, either by pres- sure or by blows from a hammer, until the Internal radius Is equal to the diameter of the test piece and the sides are parallel.

2. The nails shall be machine made and may have die-marks on the neck. They shall be uniformly round in section, straight, free from wasters and shall have sharp points. The heads shall be properly formed and concentric with the shank.

3. The dimensions of the different types of wire nails shall satisfy the respec- tive requirements of agreement between the buyer and the seller,

4. Wire nails shall be supplied bright finished, unless otherwise required to be galvanized.

5. Nails of different sizes and types shall be packer! in separate containers.

Nails below 25 mm in length shall be packed in cardboard boxes and the net weight of each box shall be 0.5 kg. The nails may also be supplied in gunny bags, metal or wooden casks or cases, or bituminized canvas or hessian bags; the net weight of each bag, cask or case shall be 50 kg.

Nails above 25 mm and below 80 mm, jn length shall be packed in cardboard boxes and the net of each box shall be 2.5 kg. The nails may also be supplied in gunny bags, metal or wooden casks or cases, bituminized canvas or hessian bags; the net weight of each bag, cask or case shall be 50 kg.

Nails 80 mm and above in length shall be packed in wrappings of double gunny bags, the weight of each package being 15 kg. The nails may also be sup- plied in metal or wooden casks, cases of bituminized canvas or hessian bags; the net weight of each package shall be 50 kg.

&t6) AMI tmtAtittt 6t tNbtA ixfRAofcomARY $49

6- All the nails selected as given in the table below shall be examined for

manufacturing defects, dimensions and finish,

7, All packages of nails shall be marked with the following information:

(a) Manufacturer's name or trade-mark.

(b) Type and finish of nail. (c) The size (length and dia, of shank) of nail, and (d) Net weight of the package.

TABLE: SAMPLE SIZE AND CRITERION FOR CONFORMITY

Number of Packages to

Number of packages in

selected if the

Permissible No, of Nails if the length

Defective of Nails

be selected

Numbor of Nails to be from each Package length of tho Nails is

the lot

Less than 25mm

25mm to 80mm

80mm & above

Less than 25mm

25mm to 80mm

80mm & above

( i)

(3)

(8)

(4)

(6)

(5)

(7)

2

10

I

2 2 to 8

25

5

4

1 9 to is

10

25

6

3 3

5

10

16 to 25

2

35

5

3

7

4

26 to 40

10

2

25

5

9

5

4

10

41 to 65

11

6

25

3

5

7

10

10

66 and above

25

5

15

7

4

NOTE.—The sampling plan gvcti here is such thai IOLS with ,\ per cent or less defectives

would be accepted most of the time.

Specification, for M.S. Sliding Door Bolts for use with Padlocks

1. Sliding door bolts shall be manufactured from mild steel which meets

with following requirement.

'for sheets and plates, suitable test pieces when cold shall withstand with-

out fracture being doubled over either by pressure or blows from a hammer until the internal dia is eaual to three times the thickness of the test piece and the sides become parallel. In case of rods the inter- nal dia of the bend of the test piece shall not be greater than twice the dia of the rod.

2. Dimensions, shape, design and tolerances shall be subject to agreement between buyers and the sellers. The common types of sliding door bolts a r e-

la) plate type sliding bolts ;.md (b) clip or bolt type sliding bolts-

3. The sliding door bolts shall have smooth sliding action. All screw holes

shall be countersunk to suit the suitable countersunk head wood screws. All sharp edges and corners shall be rounded off.

4. In case of plate type sliding bolts, the bolt plate, straps and staple plate

shall be stove-enamelled black before assembling. Hasp and bolt shall be finish- ed bright or plated as specified by the purchaser. And in case of clip or Bolt type sliding bolts, Hasp, bolt, staple and clips or fixing bolts shall be oxidized or plated as specified by the purchaser.

5. The sliding door bolt shall be marked with the name of the manufacturer, country, etc., sliding door bolts shall be wrapped in strong paper and shall be suitably packed in bundles or cardboard boxes. The label applied to the box shall carry the necessary information like the name of the manufacturer, coun- try, size, etc., etc.

950 THE GAZETTE Of INDIA EXTfcAOkblNARY \PAXT tt~

6- The number of door bolts to be selected from each lot for ascertaining its conformity to the requirements specified, shall be as given in the table below. In any consignment, all the door bolts of the same type and size shal be grouped together to constitute a lot.

TABLE FOR SAMPLING

Lot size

Sample Size

Permissible number of defective door

bolts

U p to 2 00 2 01 to 300 301 to 500 . .. 501 to 800 Koi a nd a b o ve .

15 20 30 40 55

0 1 2 2 3

Specification for Umbrellas

1. This standard covers the requirements for complete umbrellas.

2. The main ribs and the stretcher ribs of the umbrellas shall be riveted in such a way that the movement is free but without shake or play.

3. The notch shall be rigidly and firmly fixed on the tube or stick. The riba shall be fastened on the notch by means of brass, copper or galvanized wire so that ribs have no undue play or shake. The ends of the wire shall turned in so that they do not touch the cloth of the umbrella.

4. The stretcher ribs shall be firmly attached to the runner, by means of brass, copper or galvanized wire, The runner shall be capable of being held at the top and lower springs In the opened and closed positions of the umbrella, except In the case of umbrellas with flexus ribs where the lower spring is not provided.

5. The cloth shall be suitably cut in panels and firmly stitched together by strong sewing thread and of fast colour matching the shade of the cloth. The cloth shall be strengthened at the junction of the main and the stretcher ribs, that is, over the clip on the main rib. The cloth shall also be strengthened at the top above the notch. In addition, a leather or waterproof washer shall be fitted over the cloth under the cap. The cloth shall be stitched firmly to the holes at the ends of the ribs and also suitably stitched at the junction of the main ribs and stretcher ribs. The seams shall not yield or bulge when the umbrella is opened. The cloth shall not be slack or show any other defect when the umbrella Is fully opened. The stitching thread shall not be visible on the outer¹ surface.

fl. The cap shall be firmly fixed so as to prevent rain water to soak round the tube or the stick.

7. The ferrule shall be fixed firmly at the end of the stick.

8. The assembly of the cup on the handle shall be such that the cup is able to hold the ball ends of the main ribs in position when the umbrella is in closed position. The cup shall be such as to just allow the rib ends to be released, when it is pulled to its extreme position.

9. For ladles umbrellas, a suitable cord shall be provided on the handle.

10. The umbrella shall be capable of being gpened and closed smoothly with- out the runner becoming stuck. When opened, the umbrella shall have a sym- metrical shape.

11. The umrella cloth shall be provided with a suitable band with a ring and a tutton to be wrapped round when closed.

12. Either in the opened or closed position, each umbrella shall have a good and uniform shape. After opening and closing the umbrella for 50 times, the ribs shall not show any deformation and the cloth shall not show any signs of

opening or shakiness. In the case of flexus ribs, the umbrella shall close auto- matically when released from the open position.

13. Umbrellas shall be subjected to a pull of 10 kgf on the handle. The handle should not break or detached from the tube.

14. Each umbrella shall bear the maker's name, initials or trade mark on the inside of the cloth. The size of the umbrella may also be marked, if desired by the purchaser. The umbrella may be marked 'waterproofed', if it is so and certified.

15. Umbrellas shall be wrapped preferably in craft paper made into a suitable cone. When required to be packed for transit, a suitable number of umbrellas shall be packed in a wooden case and the case shall be bound by wire or hoopa.

16. The numbers of umrellas to be selected from a lot for ascertaining con- formity to this specification is given in the Table below.

TABLE : SAMPLE SIZE AND CRITERIA FOR CONFORMITY

No. of defectives

permissible

Sample size (No. of umbrellas

No. of umbrellas in the lot

to be selected)

(2)

(3), ( i)

1

1 Up to ioo . . .. IOI to 150

2 1 51 to 3 00

3 01 to 5 00 . . ..

5 01 to 1 0 00 . . ..

1 0 01 to 3 0 00 . . ..

3 5 7

10 3 0 01 a nd a b o ve

13 20 32 so 80 125 200

Specification for Mortice Locks (vertical type).

1. Material.

1.1. The locks shall be manufactured from such materials which will ensure iaffi handling and reasonable life In actual usage. Some of the common raw materials used in the manufacture of locks are—

Mild steel, Cast Brass, Brass Sheet, Phosphor Bronze, Steel Wire, Steel plate spring, leaded Tin Bronze, Aluminium alloy castings, Aluminium sheets etc., etc.

2. Shape.

2.1. The shape, design, dimensions and mechanism of locks shall be subject to agreement between buyer and seller.

3. Non-InterchangeabiUty.

3.1. The Mortice locks shall be manufactured so as to have non-interchange- able keys in a batch consisting of a minimum of 60 locks. In case non-interchanse- ability in a larger number is required, it shall be so specified by the buyer at the time of placing the order. A master key may be supplied if required by the buyer.

4. Keys.

4.1. Each look shall be provided with two male keys. Each key shall be forged from solid mild steel section, leaded tin bronze or stainless steel. The wards of the key shall be fully cut out to varying combinations, clearly defined and free from burrs. The engaging wards of key shall be rounded. The key shall function smoothly and without any appreciable friction in the lock.

6. Tests.

The final assembly of the lock shall withstand the following tests: 5.1. With the locking bolt locked in the forward position, a load as agreed to between the buyer and seller shall be applied on the end of the locking bolt. The locking bolt shall not go in the lock body by more than 12i per cent of total projection.

5.2. When the spindle with handle- is inserted into hole in the follower and turned, the latch bolt shall draw smoothly into the lock body and shall be within one mm. from the face of the foreend.

5.3. When the latch bolt is pressed into the lock body by pressure, the action shall be smooth and when fully pressed the latch bolt shall not project more than one mm. from the face of the end.

5.4. When a key is inserted in the key hole from one aide of the lock and turned to withdraw the locking bolt, the action shall be smooth and without Impediment. When the direction of turn is reversed to lock the locking bolt. then also the action shall be smooth and without Impediment. In the locked position the locking bolt shall project 12 mm. from the face of the foreend, although one mm. free movement is permissible. In the withdrawn position the locking bolt shall not project more than, one mm. from the face of the foreend. The locking bolt shall be worked by turning key in both directions several times quickly. The purpose of this test is to check up that the components do not move from their normal position to cause impediment to others. This test shall be repeated with the key inserted from other side of the lock.

5.5. When the key is turned to lock the locking bolt at the same time applying a reasonable pressure by finger on it, after completion of the key rotation, the iocklng bolt shall be positively locked in the forward position. This test shall be repeated with the key inserted from the other side of the lock.

6. Brass body shall be finished smooth. Steel body shall be given a suitable protective coating such as painting. Face plate and striking plate shall be finish- ed smooth and polished bright. Where so desired by the buyer, face plate and striking plate may also be plated, anodized or oxidized.

7. Marking.

7.1. Each lock shall be stamped with the following information:

(a) Manufacturer's name or trade-mark; (b) Number of levers; (q) Size of lock; (d) Serial number of the lock; (e) Year of supply, if specified by the purchaser, and (f) Country of origin.

7.2. The key shall be stamped with the serial number of the lock to which it relates. 8. Packing.

8.1. Each lock along with the keys shall be wrapped in a thin paper ond packed in a cardboard box as per the requirement of the buyer. Each box shall be marked with the following information—

(a) Manufacturer's name or trade-mark. (b) Type of lock, (c) Size of lock, (d) Quantity in the package, and (e) Country of origin.

Specification for Scissors.

1. Material for scissors shall be as below:

(a) Blades complete with handle or blades only.—High Carbon Steel. (b) Handles when welded or rivetted to blades made of High Carbon Steel.—Mild Steel or Cast Brass or Malleable Iron.

(c) Pastener".^Mild Steel,

SKC. 8(ii)l THE GAZETTE OF INDIA EXTRAORDINARY 953

2. Shapes and dimensions shall conform to the requirements as agreed to between the buyer and the seller.

''.. All fo-ging welding and rlvetting shall be sound. All joints shall be rigid and not loose. The rivets sha¹! be filed and made flush.

i. Sc's-.ors shall be prooerly hollow-ground with the cutting edge true and adiusted for smooth operation. The blades shall be heat treated so as to give their rutting edges a hardness randng from 600 to 700 DPN for its equivalent in other scales). The test point shall be as near as possible but not more than 13 mm^ from the cutting edge.

5. In case of scissors having screws as fasteners one blade shall be tapped to en^a^e the icrcvr. The threads shall be fu'l and true. The other blade shall be counWbnrcd to accommodate the hend of the screw or bolt. After assembly, the ends of the shanks of fasteners shall be neatly burred over,

3. The dimensions of wire gauge shall nomally be as given below in the table. Gauge with other dimensions can however be produced subject to agreement between buyer and seller.

TABLE I DIMENSIONS OF WIRE GAUGE FOR GENERAL PURPOSES

(Clauses 5 • i & 5 • 2)

Rcmnrks

Nominal of

Diameter wire

Average Gauge width of Designation Aperture -

Near

•""ram

SWG

Suitable for fly-proof screens suitable for mosquito-proof screens.

22 23 23 24 2 4* 26 27 29 3 il

160G . . . . . i'6o 140G 1-40 120G 1 • 20 100G 1 • 00 0-84 85G 0-79 80G 0-71 70G 0-59 60G 0-50 50G , , . 0-42 40G

0-950 0-710 o-6oo o-6oo 0-560 O'53° 0-450 0-425 O-355 0-280

NOTE—Wire gauge No. 160 G to 70 G may be made from galvanized mild fiteel wire, brass wire or bronze wire as specified by the purchaser. For gauge No. 60 G, 50 G. and 40 G. either bronze wire or brass wire, as specified by the purchaser, shall be used.

4. The wire gauge shall be wrapped in suitable rust preventing material and thereafter packed as per the instructions of the buyer. Each package shall be clearly marked with the following details.

(a) Manufacturer's name. (b) width x length. (c) gauge designation and diamator of wire used and (d) country of origin.

Specification for Table Knives, Desert Knives and Fruit Knives.

1. The blades of knives shaH be manufactured from stainless steel and hand- les from stainless steel or nickel silver or plastic.

2. The stainless steel knives may be supplied with— fa) stainless steel solid handle forged with blade, (b) stainless steel or nickel silver hollow handle, or (c) plastic handle.

3. The shape and dimension of knives shall be subject to agreement between the buyer and the seller.

The design of the handles of the knives shall be as agreed between tho buyer and the seller. When spoons forks and knives are required to be supplied ' in sets the design of the handles and general appearance of the items in a set shall match.

• •••

4. Knives shall also meet with the following construction-details: —

(a) knives with solid handles shall be forged In one piece, (b) knives with hollow handles shall have the blades forged and the tangs well drawn. The scales shall fit closely to the tang and shall be finished flush smooth. In case of hollow handles made of stain- less steel, the Joints shall be welded and in other cases soldered.

(c) in case wf cast plastic handles, they shall be moulded with the tang In

position. The tang shall be properly shaped and grooved,

9KG. 3 (Ii)] THE GAZETTE OF iNOtA fiJtTRAORDmAJlV $$$

(d) the blades shall be properly ground and all sharp edges rounded off.

The cutting, edge shall be sharp and ready for use. These shall be evently hardened and tempered.

5. The knives shall be free from cracks, seams, flaws, scales, pits, burrs, rough grind marks and other defects. The blade and handles shall be in Rood align- ment so that when placed on the table, the blades shall not touch the surface of the table.

6. If required by the purchaser the hollow handles made of Nickel silver may be plated and in this case plating shall be uniform.

7. When tasted for hardness, it shall not be loss than 47 HRC (Rockwell Hardness Test B and C scales). The readings shall be taken along the centre line of the blade to within 25 mm. of the bolster.

8. The cutting edge of the knife shall be made to strike three full blows in succession from a height of 200 mm. on an aluminium block or¹ a block of teakwood. The cutting edge shall not show any sign of damage.

9. The blades shall be bent to lie on the periphery of wooden block segment of 100 mm. radius and at least 22 mm. in thickness. The blade shall not show any permanent set or damage on completion of the test,

10. The surface of the blade shall be wiped thoroughly with hot water using a soft cloth. The blade shall not show any sign of corrosion when it is immers- ed in a 5 per cent solution of acetic acid for a period of not less than 12 hours.

11. The number of knives to be selected from a lot for ascertaining conformity to this specification shall be as given in the table below.

12. Each knife shall carry the name of the manufacturer, the country of origin, etc. Each knife shall be wrapped in soft tissue paper of wax paper and packed in cartons.

13. Each carton shall bear the manufacturer's name or trade-mark, description of contents and number of knives it contains.

TA

No. of Defectives Clause No. of the specification

permissible

Sample size

"1 10% of the lot I

Nil ew

Do, 4 5 . .. 6 . .. 7 . .. 8 . .. 9 . ..

I Do. f

10 . ..

j 5% of the lot

Do.

Specification for Hinges

1. Hinges shall bo well made, free from burrs, flaws and defects of any kind.

The movement shall be square, and the working shall be free and easy without any play or shake. The hole for the hinge pin shall be central to the boss and shall be square. The hinge pin shall be firm and riveted over, so that the heads are well formed. All screw holes shall be taken and countersunk and shall be suitable for the countersunk wood screws.

2. Each hinge shall be stamped with the manufacturer's trade-mark, name or Initials.

3. Hinges shall be packed in carboard boxes or in other approved packina in bundles of 20 or 24 for sizes up to and including 125 mm, and m bundles of 6 or 10 for sizes 150 mm. and above. The hinges having bright finish shall be packed in waxed paper after applying anticorrosive grease or oils. Each package shall ba labelled showing the following particulars: —

(a) Type of hinge, (b) Size of hinge,

956 TH* 6AZtTt" Ofr INDIA EfcTkAofclMtNAiW |tAKT i t-

(c) Quantity of hinges, and (d) Name of manufacturer or trade-mark.

4. In any consignment, all the hinges of the same tpye and size and manufac- tured at the same time shall be grouped together to constitute a lot.

The number of hinges to be selecLed from the lot shall depend on the size of the lot and shall be In accordance with cols. 1 and 2 of Table below. These hinges shall be selected at random from at least 10 per cent of the packages subject to a minimum of three, equal number of hinges being selected from each such package.

5. All hinges selected as in 4 shall be checked for defects in manufacture and finish. Any fringe which falls to satisfy the requirements of any one or more of the characteristics shall be considered as a defective hinge.

TABLE : SCALE OF SAMPOLING AND CRITERION FOR CONFORMITY

Permissible Number of Lot size

Sample Size

defective Hinges

( i)

(2)

(3)

0 U p tO 2OO .

15

20

¹ 2 01 to 3 00 ,

30

2 3 01 to 5 00

40

5 01 to 8 00 . . ..

2

8 01 a n d . a b o ve . . ..

55

3

N O T E .— T he s a m p l i ng p l an g i v en h e re is s u ch t h at l o ts w i th 1 • 6 p er c e nt

or less defectives will be accepted most of the times.

Specification for Spoons, Stainless Steel, Brass and Nickel Silver.

aw- *m ?w amTW w mi* E*TRA"ftPW*w 9#y

. 4 *°M M.Wm M tiW tlW* belpw s^Jl then be pp$if# at the gsjfrenip end

be measured after removal of the load. It shall not exceed the values given in the table.

Type of spoon Sp\id foipiilp ^Hqqns

Prtjmfdfhandle

spoons

Permanent Load Permanent kg. Reflection

Load kg.

nun

mro

.8

8 8

a

5 S

i '5 o-8 o-8 0 '4 o-4 o-8

8

?'5 1-5 i -5 I 'O I 0 j -5 IQ

K 8 8 8 8 8

Serving spoon, large . Serving spoqji pespert spoon Tea spoon Coffee spoon SOW "nqon IVjustaii) spoqn Salt spoon

jo

?•]

§. I^ch spo,on sh^H l?e m a r ^d wjth the name of tjjje manufjacturpF, country of

Wgifi etc-, cfec-

7. The number of spoons to be selected from a lot for ascertaining conformity

to this specification shall be as given in the table below.

SCALB OF SAMPLING AND PERMISSIBLE NUMBER OF DEFECTIVES

Vox Clavaep 4(r)

For Onuses 3 *"d

No. of spoons in j Lot

**>4 5

4(9)

Sample Size

sample No. of "ijp Befcctive

Spoons

perPW"jblf Number of defective Spoojjp

.(3)

(4) .' (S) (I)

, G")

2 0 4 0 6 0 8 0 Up to 50 51 to 150 151 to 500 501 to 1000 1001 to 3000 3001 to 10000

5 13 32 50 80 125 200

ioooi & above

20 2

0 1 3 5 7 10 H

8. Each cartoon opntainjng tJ),e spoons BIJ^J carry the n#me jof mfnufacturer,

country of origin and description of product exc, etc!

SipcificQtiori Iqr J}rQ.w,er lpc)c$, Cy$boar4 LQC^S # T$ go?; Loc^f

1. Material

1.1. The locks shall be manufactured from such materials which will ensure fl#£e handling and rjeftsonabl^ life in actual usage,. Spvafi of the cornrrnjn maj;ejrials yse'd'for tocftsg)icl~ fyie require'njents \fo bte .rnet'by ttieni are indicated in the subr sequent clausies'. " " " " "

1.2. Mild Steel.—Mild steel bar used irj. tt\e manufacture of keys aryi pins shall

satisfy the following bend tefft:

The bar when cold shall withstand, without developing qracks, J^ing doubl- ed over either by pressure or by blowv from a hitrrJmer Until th" internal radius Is equal to the diwwrttr "i tb% toaf *nd -the ^jdes are parallel.

1.3. Brass Wire and Phosphor Bronze Wire.—Brass wire' and phosphor bronze wire used in the manufacture of spring shall satisfy the following test:

The lever spring shall be fitted into the lever and shall be pressed' down so as to touch the top edge of the lever and released. This shall be repeated six times. At the end of the test, the spring shall re- gain its original position.

2. Shape

2.1. The shape, design, dimensions and mechanism of locks shall be subject to agreement between he buyer and the seller. 3. Non^Interchangeability

3.1. The locks shall be manufactured so as to have non-interchangeable keys in a batch consisting of a minimum of 100 locks. In case non-interchangeabilii-- a larger number Is required, it shall be so specified by the purchaser at the time of placing the order.

3.2. When a demand for a lesser number of locks than that required for non- Interchangeability in accordance with 3.1 is placed, the locks shall be non-in- terchangeable to the extent of the demand. 4. Keys

4.1. The keys shall be made of mild stetel, leaded Tin Bronze and shall be either of the female or male type as spescifled by he purchaser. All mechanised parts shall be free from burrs. The wards shall be evenly cijt and clearly defined. The engaging ends of the key wards shall be rounded.

3. Levers

5.1. False (Dummy) levers shall not be used. The levers shall work without nny appreciable friction or shake on the pivot pin. The holes and slots in the levers shall be free from burrs. A cover plate made of cast brass or sheet brass shall also be provided when the levers do not completely fill the whole depth of the body.

6. Workmanship and Finish

6.1. All components of the locks and the keys shall be finished smooth to minimise frlctional resistance in their working.

6.2. Unless specified otherwise, brass locks and keys shall be finished bright and aluminium alloy locks shall be anodized. The anodic film may be eithr transparent or dyed as specified by the purchaser,

7. Marking

7.1. Each lock shall be stamped with the following information;

(a.) Manufacturer's name or trade-mark; (b) Number of levers; (c) Size of lock; (d) Serial number of the lock; (e) Year of supply, if specified by the purchaser, and (f) Country of origin.

7.2. The key shall be stamped with the serial number of the lock to which it relates.

8. Packing

8.1. Each lock along with the keys shall be wrapped in a thin paper and packed in a cardboard box as per the requirement of the buyer. Each box shall be mark- ed with the following. information:

(a) Manufacturer's name or trade-mark, (b) Type of lock, (o). $lze of look,, and] (d) Quantity In, the package.

Sec S(ii>] THE GAZETTE OF INDIA EXTRAORDINARY 959

9. Sampling Size

9.1. 10 per cent of the lot presented for Inspection shall be drawn for neces- sary inspection and/or testing,

9.2. No defective out of the sample is permissible.

Specification for galvanised steel barbed wire for fencing

1. The barbed wire shall be manufactured from galvanised steel wire having uniform zinc coating.

2. Size and type of wire shall be subject to agreement between the buyer and seller.

3. The barbs shall carry four points and shall be formed by twisting two point wires, each two turns, tightly round one line wire, making altogether four complete turns. The barbs shall be so finished that the four points are set and locked at right angles to each other. The points shall be sharp. The length of the barbs should be as agreed to between the buyer and the seller,

4. The line and point wires shall be circular in section, free from scale and other defects and shall be uniformly galvanised. The line wire shall be in con- tinuous lengths, and shall not contain any welds other than those in the rod be- fore it is drawn.

5. The line wire shall not show any sign of flaking or pealing of its zinc coat- ing when coiled round a cylindrical bar of approximate diameter given below as an example.

Size of wire

Diameter of Mandrel

mm. 2.50 2.24

mm. 25 25

6. The line wire shall withstand wrapping and unwrapping eight turns round its own diameter, without fracture.

7. Every reel of barbed wire shall be marked legibly on it the name of the manufacturer, country of origin, diameters of the line and point wires, bar spac- ing and length and weight of the reel. Unless otherwise agreed to between the supplier and the purchaser, the barbed wire shall be supplied in metal or wooden reels. Each reel of barbed wire shall be wound and fastened compactly.

8. Sampling Size

8.1. 5 per cent of the lot presented for inspection shall be drawn for necessary inspection and/or testing. •

8.2. No defective out of the sample is permissible.

[No. 60(116)Ex. Insp/65.]

S. HAMID, Jt. Secy.

PRINTED IN INDIA BY THE QENSRkL MANAOIK, OOVERNMENT OF INDIA FRESQ,

NEW DELHI AND PUBLISHED BY THE MANAGER OF PUBLICATIONS, DELHI, 1 9 65