Chapter 221. establishing a standard gauge for sheet and plate iron and steel
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CHAP. 221.— An Act establishing a standard gauge for sheet and plate iron and steel.March 3, 1893. *Be it enacted by the Senate and House of Representatives of the United States of America in Congress assembled*,Standard gauge for sheet and plate iron and steel, established. That for the purpose of securing uniformity the following is established as the only standard gauge for sheet and plate iron and steel in the United States of America, namely: Number of gaugeNumber of gauge, thickness, and weight.
Approximate thickness in fractions of an inch Approximate thickness in decimal parts of an inch Approximate thickness in millimeters Weight per square foot in ounces avoirdupois Weight per square foot in pounds avoirdupois Weight per square foot in kilograms Weight per square meter in kilograms Weight per square meter in pounds avoirdupois. 0000000 1–2 .5 12.7 320 20.00 9.072 97. 65 215.28 000000 15–32 .46875 11.90625 300 18.75 8.505 91.55 201.82 00000 7–16 .4376 11.1125 280 17.50 7.983 85.44 188.37 0000 13–32 .46625 10.31875 260 16.25 7.371 79.33 174.91 000 3–8 .375 9.925 240 15. 6.804 79. 24 161.46 00 11–32 . 34375 8.73125 220 13.75 6.287 67.
I3 148,00 0 5–16 .3125 7.0375 200 12.50 5.07 61. 03 134.55 1 9–32 .28125 7.14375 180 11.25 5.103 54.93 121.09 2 17–64 .265625 6.746875 170 10.625 4.819 61.88 114.37 3 1–4 .25 6 35 160 10 4.586 48. 82 107.64 4 15–64 .234375 5.653125 150 9.375 4.252 45. 77 100.91 5 7–32 .21875 5.55625 140 8.75 3.969 42.72 94.18 6 13–64 .203126 5.159375 130 8.125 3.685 39.67 87.45 7 3–16 .1876 4.7625 120 7.5 3.402 36.62 80.72 8 11–64 .171875 4.365625 110 6.875 3.118 33.57 74.00 9 5–32 .15625 3.90875 100 6.25 2.835 30. 52 67.27 10 9–64 .140625 3.571875 90 5.625 2.552 27.40 60. 55 11 1–8 .125 3.175 80 5 2.268 24.41 58. 82 12 7–64 .109376 2.778125 70 4.375 1.984 21.36 47.00 13 3–32 .09375 2.38125 60 3.75 1.701 18.31 40.36 14 6–61 .078125 1.684375 50 3.125 1.417 15.26 38.64 15 9–120 .0703126 1.7859875 45 2.8125 1.276 13.73 30.27 16 1–16 .0625 1.5875 40 2.5 1.134 12.21 26.91 17 9–160 .05625 1.42875 36 2.25 1.021 10.99 24.22 18 1–20 .05 1.27 32 2. .9072 9.765 21.53 I9 7–160 .04375 1.11125 28 1.75 .7988 8.544 18.84 20 3–80 .0375 .9525 24 1.50 .6804 7.324 16.15 21 11–320 .034375 .878125 22 1.375 .6237 6.713 14.80 22 1–32 .03125 .793750 20 1.25 .567 6.103 13.46 23 9–320 .028125 .714375 18 1.125 .5103 5.493 12.11 24 1–40 .025 .635 16 1. .4536 4.882 10.76 25 7–320 .021875 .555625 14 . 875 .3969 4.272 9.42 26 3–160 .01875 .47625 12 .75 .3402 3.662 8.07 27 11–640 .0171875 .4365625 11 .6875 .3119 3.357 7.40 28 1–64 .015025 .396875 10 .625 .2835 3.052 6.73 29 9–640 .0150626 .3571876 9 .5625 .2561 2.740 6.05 30 1 –80 .0125 .3175 8 .6 .2208 2.441 5.38 31 7–640 .0109375 .2778125 7 .4375 .1984 2.136 4.71 33 13–1280 .01015625 .25796875 6 .40625 .1843 1.983 4.37 33 3–320 .009379 .238125 6 .375 .1701 1.831 4.04 34 11– 1280 . 00859375 .21828.125 5 .34376 .1559 1.678 3.70 35 5–640 . 0078120 .1984375 5 .3125 .1417 1.536 3.36 36 9–1280 .00703125 .17859375 4 .28125 .1276 1.373 3.03 37 17–2560 .006640625 .166671875 4 .265025 .1205 1.297 2.87 38 1–160 .00625 .15875 4 .25 .1134 1.221 2.69 And on and after July first, eighteen hundred and ninety-three, theNo other to be used in determining duties. same and no other shall be used in determining duties and taxes levied by the United States of America on sheet and plate iron and steel.
But No increased duties on imports.this act shall not be, construed to increase duties upon any articles which may be imported. Sec. 2. That the Secretary of the Treasury is authorized and requiredSecretary of Treasury to prepare standard.Variation allowed. to prepare suitable standards in accordance herewith. Sec. 3. That in the practical use and application of the standard gauge hereby established a variation of two and one-half per cent, either way may be allowed. Approved, March 3, 1893.