1、QQ-L-20LF 75 W 779777LI 0007370 h QQ-L-201f -,c“ Los York, Washington, D. C., Atlanta, Chicago, Kansas 20402. nished in ithe folowing grades, as smi- Angeles, and -Seattle, Wash. $i Test Methods. officer.) required by contractors in connection with specific Fed* Test Methother ,matarials by a conven
2、kional process of reduction and refining or other PJXWSSS which equally preclude the pres- ence of unusual deleterious elements. Re- claimed lead is mot acceptable for grades C and D. 3.1.1 Gradw C and D lead i.ckness shall .be packed level A or B (see 6.2), in mrdance with the requirements of MILN-
3、3944. 5.2.2 Levet C. Material shall be med in xmrdanw wibh the Buppliera commercial praotice to assure receipt by oarrim and safe delivery rto the dwtination at the low- est .t;ranspMon rate or rating. IContainers shall conform to carrier regulations W a;p- plicable .h the mode of hmnspmtation. 5.3
4、Marking. 5.3.1 Military agencies. In addition to any special marking required hereh or in the contract or ordek, shipments shall be marked in acwrdanoe wikh MILSTD-129. 5.3.2 NcmmilitaTg ag&es. In addition to any Bppecial marking contained herein or in Dhe contra& or order, Bhipxnenk- shall be. mark
5、ed in accordance with Fed. Std. NQ. 123. 6. NOTES ,6.1 Intended use. Grade B lead sheet is intended for use in laboratories and shops Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-TABLE II. Approximate thickness of .lead sheet specified and furnish
6、ed by weight. (Trade accepted figures: For infolnnation only.) (Basis: 1 cubic inch of lead weight 0.41 pound and 1 sauare foot of Weights: pounds per . square foot 3/4 . 1 . 11/2 . 2 . 21/2 . 3 . 3 1/2 . 4 . 6 . 6 . lead sheet 1 inch-thick 5904. pounds.) - Approximate thickness i - Wkkhts: I Approx
7、imate thickness in inches - pounds per in inches Decimals Fractions Wuare $oot Decimals Fractions .O166 1/64 .: 10 .G63 6/32 .O234 3/128 12 I ,1876 3/16 .O312 1/32 .I4 . ,2188 7/32 .O391 6/128 - . . 16 .2600 v4 .O468 3/64 20 .3333 1/3 .O647 7/128 24 .4000 2/5 .O626 1/16 30 .i000 1/2 .O781 6/64 40 ,6
8、667 2/3 .O937 3/32 I 60 1.0000 1 0.0117 1/80 -0.1250- 8 1/8 in general application. Grade G is intended for use where lead sheet of high purity is indicam6 and for subma&m battery tank liners. Grade D lead sheet is intended for use where lead sheet of high pu,r.ity and structural strength is indicat
9、ed. 6.1.1 GraCEs B. When grade B lead sheet is intended for use with corrwive chemi- caIs, the bismuth content should be &Mi- fid as 0.025 jpercent, maximum. 6.2 Ordering data. Purchasers should ex- ercise any desired options offered herein and prmurement documents should specify the following: .(d)
10、 Title, number, and dake of this wed- f ication. (b) Grades, size, thickness, or weight and quantity required (see 1.2 and 3.4). (G) Alternate Ith“ss tolerance when required (see 3.4.2). (d) Form of lead sheet if other khan rolls (see 3.6). (e) 1,dentifiwbion by heat when required (see 4.2.3). (f) A
11、pplicable level ,of paekagiw, .pmk- ing, and marking required (see section 5). I (gf) Limit on bismuth in grade B when required (see2 of table I). 6.3 Lead sheet is produced in various thicknesses, widths, and lengths. Ordinari- ly lead sheet up to 1 inoh thickness is re- ferred to the number of pun
12、& per square foot, as given in table U. The standard di- mensions for lead Bheet, weighing 3 pounds per squa.re foot or over, a-re 8 feet, 6 inches wide by 20 feet long. The standard dimen- sions for lead sheet weighing less than -3 podis per square foot, are 4 to 5 feet wide by 15 feet long. Wider
13、and longer lead sheets are available when specified. How- ever, all lead sheet is usually orderd cut to size which Ml1 be used ultimately. Lead sheet thicker than 1 inch should be os- derd to the desired thickness. 6.4 Transportation description. The trans- portation descriptions and minimum weights
14、 applicable ta this commod.ity are: Rail : Lead sheet. poundg. ,Carload minimum weight 40,000 Motor: Lead sheet. Truckload minimum weight 40,000 wurida, .subject to Rule 115, Nac i tional Motor Freight Ckwsification. a .: . #* - f- . 5 : Provided by IHSNot for ResaleNo reproduction or networking per
15、mitted without license from IHS-,-,-Arri7Y-m Navy-SH Air Form 69 Rwhu didtdsa: Army-MR, MO, Mu Navy“SH, WP, %D U8W CbCtMtb: hy-EL Preprhg activity: Navy4H ! * U.S. OOVPRNMENT PRlNTlNO OFFICE1 1066-0350/1 Orders for Ohia publication are 60 be placed with General Services Administration, acting .a111 .an agent for the Superintendent of Documenta. See section 2 of this specification to obtain extra Copi- .-and other documenta referenced herein. Price 6 cents each, 6 c-=- - %. “_ .- “_ T L - - ,. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
