of high purity is indicated, and for submarine battery tank liners. Grade D led sheet is intended for use where lead sheet of high purity and structural strength is indicated.
TABLE II. Aproximate thickness of lead sheet specified and furnished by weight. (Trade accepted figures: For information only.)
(Basis: 1 cubic inch of lead weight 0.41 pound and 1 square foot of
lead sheet 1 inch thick 59.04 pounds)
--------------T-------------------------T--------------T------------------------ I Approximate thickness I I Approximate thickness
Weights: I in inches I Weights: I in inches
pounds per �-----------T-------------1 pounds per �----------T-------------
square foot I Decimals I Fractions I square foot I Decimals I Fractions
--------------+-----------+-------------+--------------+----------+-------------
3/4.........I 0.0117 I 1/80 I 8 I 0.1250 I 1/8
1 .........I .0156 I 1/64 I 10 I .1563 I 5/32
1 1/2.........I .0234 I 3/128 I 12 I .1875 I 3/16
2 .........I .0312 I 1/32 I 14 I .2188 I 7/32
2 1/2.........I .0391 I 5/128 I 16 I .2500 I 1/4
3 .........I .0468 I 3/64 I 20 I .3333 I 1/3
3 1/2.........I .0547 I 7/128 I 24 I .4000 I 2/5
4 .........I .0625 I 1/16 I 30 I .5000 I 1/2
5 .........I .0781 I 5/64 I 40 I .6667 I 2/3
6 .........I .0937 I 3/32 I 60 I 1.0000 I 1
--------------�-----------�-------------�--------------�----------�-------------
6.1.1 Grade B. When Grade B lead sheet is intended for use with corrosive chemicals, the bismuth content shall be specified as 0.025 percent, maximum.
6.2 Ordering data. Purchaser should exercise any desired options offered herein and procurement document should specify the following;
(a) Title, number, and date of this specification.
(b) Grades, size, thickness, or weight and quantity required (see 1.2
and 3.4).
(c) Alternate thickness tolerance when required (see 3.4.2).
(d) Form of lad sheet if other than rolls (see 3.5).
(e) Identification by heat when required (see 4.2.3).
(f) Applicable level of packaging, packing, and marking required
(see section 5).
(g) Limit on bismuth in grade B when required (see [2] of table I).
6.3 Lead sheet is produced in various thickness, widths, and lengths. Ordinarily lead sheet up to 1 inch thickness is referred to the number of pound per square foot, as given in table II. The standard dimensions for lead sheet, weighing 3 pounds per square foot or over, are 8 feet, 6 inches wide by 20 feet long. The standard dimensions or lead sheet weighing less than 3 pound per square foot, are 4 to 5 feet wide by 15 feet long. Wider and longer lead sheets are available when specified. However, all lead sheet is usually ordered cut
to size which will be used ultimately. Lead sheet thicker than 1 inch should be ordered to the desired thickness.
6.4 Transportation description. The transportation descriptions and minimum weights applicable to this commodity are:
Rail:
Lead sheet.
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