1、A-A-52408 9999974 0355348 644 W INCH-POUND A-A-52 408 Auaust 31. 1993 SUPERSEDING MIL-P-11520F 10 May 1989 COMMERCIAL ITEM DESCRIPTION PRESERVATIVE COATING, RUBBER: FOR RUBBER SURFACES The General Services Administration has authorized the use of this commercial item description (CID) as a replaceme
2、nt for MIL-P-11520FI which is canceled. ABSTRACT. This CID covers preservative coating for the protection of natural or synthetic rubber items such as tires, track pads, bogey wheels, gaskets, hoses, and others. Its purpose is to eliminate deterioration due to oxidation, ultraviolet light and ozone.
3、 The material can be used where solvent vapor is not a hazard. The preservative is suitable where storage temperatures may be below 32OF. It is intended for spray, brush or dip application. The preservative coating is also referred to herein as “preservative“. SALIENT CHARACTERISTICS. O a. Materials
4、. The preservative shall conform to the physical properties and performance requirements specified herein. The use of recovered material made in compliance with regulatory requirements is acceptable providing that all requirements of this CID are met (see note e). Hazardous materials shall be handle
5、d in accordance with 29 CFR Chapter XVII. b. Toxicity. The preservative shall contain no substances of known toxicity, and shall conform to Rule 442 of the South Coast Air Quality Management District (see Salient Characteristics (SC). c. Homogeneity. The preservative shall remain in a completely hom
6、ogenous state. The homogeneity shall be verified by visual examination of container contents upon opening an as received, non-agitated container for separation of ingredients. Beneficial comments, recommendations, additions, deletions clarifications, etc. and any other data which may improve this do
7、cument should be sent by letter to: U.S. Army Tank-Automotive Command, ATTN: AMSTA-GDS, Warren, MI 48397-5000. AMSC NIA FSC 8030 DISTRIBUTION STATEMENT A. Approved for public release; distribution is unlimited. Licensed by Information Handling ServicesProvided by IHSNot for ResaleNo reproduction or
8、networking permitted without license from IHS-,-,-A-A-52408 9999974 0155349 580 Material -_- SBR 1500 HAF Type Carbon Black (N330) Zinc Oxide Stearic Acid A-A-52408 Parts by weight 100.0 50.0 3.0 1.5 -t- d. Viscosity. The viscosity shall be such that the preservative shall pass through a number 4 Fo
9、rd cup in not more than 60 seconds when tested in accordance with American Society for Testing and Materials (ASTM) D1200. e. Dry time. Applied preservative shall be dry to the touch in no more than 60 minutes, when touched with clean white laboratory filter paper for no less than 5 seconds. The pap
10、er shall show no indication of wetting or discoloration. f. Accelerated storage. The preservative shall be free from gelation, hard caking, separation, or other visible signs of deterioration or nonconformance after storage for 28 days in typical storage containers at both 120 + 5OF and 20 - + 5OF.
11、The preservative shall then conform to SC b through e- 9. Discoloration. The discoloration of the natural or synthetic rubber products treated with the preservative shall be kept to a minimum. h. Ozone resistance. Five preserved type A test specimens shall be free of cracks and crazing when examined
12、 under 7-power magnification after 25% elongation and exposure to an air and ozone mixture of 50 + 5 parts ozone per one hundred million (pphm) of air by volume for 200 + 1 hours, or 100 + 10 pphm of ozone for 100 - + 1 hours, at 104 - + 2OF in accordance with ASTM D1149. - i. Penetration and retent
13、ion of preservative. The average minimum increase in weight for five preserved test specimens shall be at least 2% of the weight of the five test Specimens prior to preservation, when weighed 24 + 1 hour after preservation to the nearest .O001 gram. Test specimens shall be 3 x 1 inches. j. Unit cont
14、ainer sizes. The preservative shall be available in the following unit container sizes: pints, gallons, 5 gallon pails, and 55 gallon drums (see note b and c). k. Material safety data sheet (MSDS). A MSDS shall be prepared in accordance with the latest revision of FED-STD-313 (see note b and f). 1.
15、Identification and markings. Each unit container (see SC j) shall be marked in accordance with MIL-STD-129 and shall include as a minimum the manufacturers name, the date of manufacture, and CID PIN (see note c). m. Test specimens. Test specimens shall conform to the composition shown in table I. Ru
16、bber test specimens shall be cured into sheets 0.075 inch in thickness under a minimum pressure of 500 psi at a temperature of 307OF OK 30 minutes. thoroughly until comp nless otherwise specified (see note b), test specimens shall be cleaned of all contaminants and preservative applied by hand brush
17、ing etely treated or saturated. 2 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-A-A-52408 = 7779774 0355350 2T2 A-A- 5 2 408 TABLE II. Rubber test specimen composition - Continued. QUALITY ASSURANCE Mater ia1 Parts by weight Highly Aromatic Process
18、 Oil Sunolite 240 (WHITCO) Santoflex 13 Sulfur Tertiary-Butyl Benzothiazole Sulfenamide (TBBS) PROVISIONS 7.0 1.5 3.5 2.0 1.25 a. Responsibility for inspection. The contractor is responsible for the performance of all inspections (examinations and tests). b. Contractor certification. The contractor
19、shall certify and maintain substantiating evidence that the product offered meets the salient characteristics of this CID and that the product conforms to the producers own drawings, specifications, workmanship standards, and quality assurance practices. Items with known defects shall not be submitt
20、ed for Government acceptance. The Government reserves the right to require proof of such conformance prior to the first delivery and thereafter as may be otherwise provided for under the provisions of the contract. PRESERVATION, PACKAGING, PACKING, LABELING, AND MARKING a. Preservation, packaging, p
21、acking, labeling, and marking for the desired level shall be as specified in the contract or order (see note b). b. Additional labeling and marking. When applicable, all unit containers shall be marked with necessary personnel hazard precautions and necessary equipment to be used, e.g., breathing ap
22、paratus, rubber gloves. If special spraying equipment is required to apply the preservative, it shall be marked on all unit containers. Hazardous materials shall be marked in accordance with MIL-STD-129. NOTES. (This section contains information of a general or explanatory nature that may be helpful
23、, but is not mandatory.) a. Addresses for obtaining copies of referenced documents. 1. Government specifications and standards. Copies of MIL-STD-129, Marking for Shipment and Storage; and FED-STD-313, Material Safety Data, Transportation Data and Disposal Data for Hazardous Materials Furnished to G
24、overnment Activities are available from the Navy Publications and Printing Service Office, Standardization Documents Order Desk, Bldg. 4D, 700 Robbins Avenue, Philadelphia, PA 19111-5094. 2. Other Government documents, drawings, and publications. Copies of Title 29, Chapter XVII, Occupational Safety
25、 and Health Administration, Department of Labor are available from the contracting activity or as directed by the contracting activity. 3 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-A-A-52408 3. Non-Government publications. Copies of ASTM D412 “R
26、ubber Properties in Tension“, ASTM D1149 “Rubber Deterioration - Surface Ozone Cracking in a Chamber“, ASTM D2170 “Kinematic Viscosity of Asphalts (Bitumens)“, and ASTM E442-91 “Chlorine, Bromine or Iodine in Organic Compounds by Oxygen Flask Combustion“ are available from American Society for Testi
27、ng and Materials, 1916 Race Street, Philadelphia, PA 19103. Copies of Rule 442, Usage of Solvents are available from South Coast Air Quality Management District, 9150 Flair Drive, El Monte, CA 91731. b. Ordering data. Acquisition documents must specify the following: 1. Title, number, and date of th
28、is commercial item description. 2. Issue of DODISS to be cited in the solicitation, and if required, the 3. Unit container size and PIN. 4. Identify activities requiring copies of completed MSDS and specify 5. Whether test specimens should not be cleaned. 6. Whether the application of preservative o
29、n test specimens is other 7. Selection of applicable level and packaging requirements. specific issue of individual documents referenced. when the MSDS will be inspected. than as specified. c. Part or identification number (PIN). The PIN to be used for preservative acquired to this CID is as follows
30、: A 52408 - XXXX -7- _ Unit container size: QT - (1) quart GAL - (1) gallon PAIL - (1) 5 gallon pail DRUM - (1) 55 gallon drum CID number. Commercial item designator. d. Cross-reference data. Preservative conforming to this CID is substitutable/interchangeable with preservative conforming to MIL-P-1
31、1520F. e. Regulatory requirements. The offeror/contractor is encouraged to use recovered materials in accordance with Public Law 94-580 to the maximum extent practical. f. MSDS. The contracting officer should identify those activities requiring copies of the completed MSDS prepared in accordance wit
32、h FED-STD-313. Additional pertinent Government mailing addresses for submission of data are listed in appendix B of FED-STD-313. - 4 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MILITARY INTERESTS: Custodians: A-A-52408 9999974 0355352 075 Army -
33、AT Air Force -69 A-A-52 408 CIVIL AGENCY COORDINATING ACTIVITY: GSA- FS S PREPARING ACTIVITY: Army - AT (Project 8030-0652) Review activities: Army - GL, MR, SM, ME Navy - AS User activities: Army - AR Navy - SHI OS, MC 5 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
