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
15、ction or networking permitted without license from IHS-,-,- - A-A-59318 = 9018054 000368b 51b A-A-593 18 3.3 Reflectance. The polish shall be capable of polishing a tarnished aiuminum surface to produce a reflectance reading of fi-om 10 to 30 when measured with a reflectometer. The reflectance shall
16、 not change over a 24-hour period. 3.3.1 When Type II polish is applied to a tarnished aluminum surface at O OF (-1 8 OC), it shall meet the requirements specified in 3.3. 3.3.2 Polish that has been restored after being temperature cycled as specified in 3.2.2 shall produce a reflectance reading not
17、 less than 90 percent of the reflectance reading produced by the low-temperature control sample when applied to a tarnished aluminum surface. 3.4 Ease of Removal and Corrosiveness. Residual polish shall be easily removed fiom a tarnished aluminum surface that has been polished and dried. There shall
18、 be no discoloration or evidence of corrosion after the surface has been wiped clean. 3.5 Water and Salt Sprav Resistance (Type I only). Aluminum surfaces treated with Type I polish and coated with a waterproof liquid wax shall resist water and salt spray. 3.6 Storage Stability. The polish shall sho
19、w no visible evidence of deterioration after storage in ambient conditions for 6 months. 4. REGULATORY REQUIREMENTS. 4.1 Regulatory Requirements. The offerorkontractor is encouraged to use recovered materiais to the msuzimum extent practicable, in accordance with paragraph 23.403 of the Federal Acqu
20、isition Regulation (FAR). 4.2 Material Safkty Data Sheets (MSDSs). MSDSs shall be frnished in accordance with FED-STD-3 13. The pertinent Government maiiing addresses for submission of data are listed in Appendix B of FED-STD-3 13. 5. QUALITY ASSURANCE PROVISIONS. 5.1 Product Conformance. The produc
21、t provided shdl meet the salient characteristics of this CID, conform to the producers own drawings, specifications, standards, and quality assurance practices, and be the same product offered for sale in the commercial market. The Government reserves the right to require proof of such conformance.
22、5.2 Market Acceptability. The following market acceptability criteria are necessary to document the quality of the product to be provided under this CID. 5.2.1 The company producing the polish must have been producing a product meeting the requirements of this CID for at least 6 months. 3 Provided b
23、y IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-A-A-593 18 6. PACKAGING. 6.1 Preservation, Packing. and Marking. Preservation, packing, and marking shall be as specified in the contract or order and 6.1.1. 6.1.1 Marking. 6.1.1.1 Precautionary Markinm. The foll
24、owing precautionary markings shall appear on each container: WARNING: HARMFUL IF INHALED. CAUSES IRRITATION Avoid breathing vapor. Avoid contact with eyes, skin, and clothing. Keep container closed. Use with adequate ventilation. Wash thoroughly after handling. 6.1.1.2 Directions for Use. The manufa
25、cturers recommendations for application of the polish and directions for obtaining optimwn results shall be plainly marked on each container. 7. NOTES 7.1 Source of Documents. 7.1.1 ASTM Standards are available fiom the American Society for Testing and Materials, 100 Barr Harbor Drive, West Conshoho
26、cken, PA 19428-2959. 7.1.2 The FAR may be obtained from the Superintendent of Documents, U.S. Government Printing Office, Washington, DC 20402-0001. 7.1.3 Federal Standards and Specifications may be obtained fiom the General Services Administration Specifications Section, Suite 8 100,470 E. LEnfant
27、Plaza, SW, Washington, DC 20407. 7.2 Ordering; Information. The purchaser should select the required options permitted herein and include the following information in procurement documents: a. Title, number, and date of this CID. b. Type. b. Quantity. c. Preservation, packing, and marking. 4 Provide
28、d by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-A-A-59318 = 9018054 0003688 399 A-A-593 I8 7.3 National Stock Numbers INSNs). The following is a list of assigned NSNs that correspond to this CID. The list may not be indicative of all possible NSNs associate
29、d with the CID. 7930-00-266-7 13 1 7930-00-267- 1224 7930-00-734-401 O MILITARY INTERESTS: CUSt0dian: Army - GL Navy - AS Air Force - 11 CIVIL AGENCY COORDINATING ACTIVITY: GSA/FSS - IOFTE Preparing Activity: Navy - AS (Project 7930-043 1) Review Activities: Air Force - 84 Army - AV, MD 5 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
