NAVY A-A-59318-1998 POLISH METAL ALUMINUM [Superseded NAVY MIL-P-6888 C CANC NOTICE 2 NAVY MIL-P-6888 C VALID NOTICE 1 NAVY MIL-P-6888 C NAVY MIL-P-6888 B NAVY MIL-P-6888]《金属铝抛光》.pdf
《NAVY A-A-59318-1998 POLISH METAL ALUMINUM [Superseded NAVY MIL-P-6888 C CANC NOTICE 2 NAVY MIL-P-6888 C VALID NOTICE 1 NAVY MIL-P-6888 C NAVY MIL-P-6888 B NAVY MIL-P-6888]《金属铝抛光》.pdf》由会员分享,可在线阅读,更多相关《NAVY A-A-59318-1998 POLISH METAL ALUMINUM [Superseded NAVY MIL-P-6888 C CANC NOTICE 2 NAVY MIL-P-6888 C VALID NOTICE 1 NAVY MIL-P-6888 C NAVY MIL-P-6888 B NAVY MIL-P-6888]《金属铝抛光》.pdf(5页珍藏版)》请在麦多课文档分享上搜索。
1、- A-A-59318 m 9018054 0003684 743 m INCH-POUND A-A-593 18 8 September 1998 SUPERSEDING 3 1 January 1973 MIL-P-6888C COMMERCIAL ITEM DESCRIPTION POLISH, METAL, ALUMINUM The General Services Administration has authorized the use of this commercial item description for ail federal agencies. 1. SCOPE. T
2、his commercial item description (CID) covers a metal polish used for polishing unpainted aluminum and aluminum alloy surfaces of aircraft. The abrasive quality of the polish enables it to remove tarnish and produce a high lasting shine. The polish shall not be used on aluminum aircraft surfaces that
3、 are to be painted with organic coating materials, unless silicone residue is removed with xylene prior to painting. 2. CLASSIFICATION. The metal polish shall be of the following types: Type I - Liquid. (May be used to polish a surface that will be coated with a waterproof Type II - Paste. (May be u
4、sed at sub-zero temperatures.) liquid wax.) 3. SALIENT CHARACTERISTICS. 3.1 Material. The formulation of the polish shall be optional with the manufacturer except as restricted by the requirements specified herein. 3.1.1 Toxicity. The polish shall have no adverse effect on the health of personnel wh
5、en used for its intended purpose. 3.2 Phvsical Properties. The polish shall conform to the requirements in table I. Beneficial comments, recommendations, additions, deletions, clarifications, etc. and any other data which may improve this document should be sent to: Commander, Naval Air Warfare Cent
6、er Aircraft Division, Code 414100B120-3, Highway 547, Lakehurst, NJ 08733-5100. FSC 7930 Licensed by Information Handling ServicesProvided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,- - A-A-59318 901805Ll 0003685 b8T = Property Flash Point, OF (“C), minim
7、um A-A-593 18 Test Method Requirement or Paragraph 140 (60) ASTM-D56 Settling Number, maximum J/ Krebsunits I/ Low-Temperature Stability Abrasive Number, maximum Viscosity at 75 f5 OF (24 k3 OC), 20 3.2.1 50 to 70 ASTM-D 5 62 Restorable to original appearance 3.2.2 by vigorous shaking or stirring 5
8、3.2.3 3.2.1 Settling Number (Twe I onlv). Place 50 milliliters (mL) of well-mixed Type I polish in a test tube. Cap the tube and allow it to remain undisturbed in an upright position for 24 hours. After the settling period, invert the test tube repeatedly until the solid matter is dislodged and begi
9、ns to disperse evenly. Record the number of inversions as the settling number. 3 2.2 Low-Temperature Stability. Place approximately 1 O0 mL of Type I polish or 1 O0 grams of Type II polish in each of two 125-mL wide-mouth Pyrex jars and stopper the jars. Set aside one of the jars at 70 to 77 OF (21
10、to 25 OC) for the duration of the test period as a control sample. Place the second jar containing the test sample in a cold box maintained at 14 k4 OF (-10 f2 OC) for 2 hours. At the end of the 2-hour period, remove the jar from the cold box and immerse it in a water bath maintained at 117 f2 OF (4
11、7 +1 OC) for 1 hour. Remove the jar fiom the water bath, dry, and again place it in the cold box at 14 k4 OF (-1 O f2 OC) for 2 hours. At the end of the second 2-hour period, remove the jar from the cold box and immerse it in the water bath maintained at 117 +;! OF (47 fl OC) for 1 hour. Remove the
12、jar from the water bath, dry, and again place it in the cold box at 14 k4 OF (-10 +z OC) for a third 2-hour period. At the end of this period, remove the jar from the cold box and allow it to remain at room temperature for 16 hours. For Type I polish, shake the jar containing the test sample vigorou
13、sly by hand; for Type II polish, stir the contents of the jar. Compare the appearance of the test sample to the control sample. 3.2.3 Abrasive Number. Clean and weigh two 0.05- by 3- by 6-inch aluminum panels conforming to QQ-A-250/5. Cover one of the panels with a thin coating of polish. Place the
14、second panel on the coated panel and rotate 25 times in moderate circular motion. Separate the panels and wipe clean with a soft cloth saturated with acetone. Reweigh and determine the weight loss. Record the weight loss in milligrams as the abrasive number. 2 Provided by IHSNot for ResaleNo reprodu
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