NAVY A-A-59297-1998 BUFFING AND POLISHING COMPOUNDS [Superseded NAVY MIL-B-16909 B CANC NOTICE 2 NAVY MIL-B-16909 B VALID NOTICE 1 NAVY MIL-B-16909 B]《磨光和抛光剂 [代替 海军 MIL-B-16909 B C.pdf
《NAVY A-A-59297-1998 BUFFING AND POLISHING COMPOUNDS [Superseded NAVY MIL-B-16909 B CANC NOTICE 2 NAVY MIL-B-16909 B VALID NOTICE 1 NAVY MIL-B-16909 B]《磨光和抛光剂 [代替 海军 MIL-B-16909 B C.pdf》由会员分享,可在线阅读,更多相关《NAVY A-A-59297-1998 BUFFING AND POLISHING COMPOUNDS [Superseded NAVY MIL-B-16909 B CANC NOTICE 2 NAVY MIL-B-16909 B VALID NOTICE 1 NAVY MIL-B-16909 B]《磨光和抛光剂 [代替 海军 MIL-B-16909 B C.pdf(4页珍藏版)》请在麦多课文档分享上搜索。
1、i W 9018054 O001993 b14 mCH-POUND1 A-A-59297 Julv 3 1.1998 SUPERSEDING November 8, 196 1 MIL-B-16909B COMMERCIAL ITEM DESCRIPTION BUFFING AND POLISHING COMPOUNDS The General Services Administration has authorized the use of this commercial item description, for all federal agencies. 1. SCOPE. This c
2、ommercial item description covers buffuig and polishing compounds used for metal finishing. 2. CLASSIFICATION. The buffing and polishing compounds shall confomi to the following types and grades. 2.1 Tvpes let the mineral matter settle, and pour off the supernatant liquid. Repeat three or four times
3、 until the fat or grease has been completely extracted. Dry the mineral matter on a steam bath in a beaker. Weigh 20 grams of the mineral matter, secured as described above, and transfer to a nest of 200 and 23 O mesh U. S. standard sieves and determine, by vibrating and oscillating the set, whether
4、 all of the material will pass through the 200 mesh sieve. If all of the material passes through the 200 mesh sieve, remove this sieve from the nest and wash the material remaining on the 230 mesh sieve under a stream of water. Dry, weigh, and determine the percentage by weight of material remaining
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