ARMY A-A-52022 A-2003 REPAIR OUTFITS COLLAPSIBLE TANKS AND DRUMS (ROCTAD)《湿陷坦克和桶的修补装备》.pdf
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1、INCH-POUND A-A-52022A December 2, 2003 SUPERSEDING A-A-52022 January 14, 1991 COMMERCIAL ITEM DESCRIPTION REPAIR OUTFITS, COLLAPSIBLE TANKS AND DRUMS (ROCTAD) The General Services Administration has authorized the use of this commercial item description, for all federal agencies. 1. SCOPE. This desc
2、ription covers a repair outfit used to repair cuts, abrasions, and punctures on tanks, drums, and berm liners made of elastomer-coated fabrics. 2. CLASSIFICATION. Type I - Turbine Fuel repair outfit (Ref. MIL-DTL-83133) Type II - Diesel Fuel repair outfit (Ref. MIL-DTL-46162) 3. SALIENT CHARACTERIST
3、ICS. 3.1 General. Each repair outfit shall be equipped to repair two seven-inch cuts and four punctures up to one-half inch in diameter. The repair outfits shall form a repair that is resistant to turbine fuel for Type I and referee grade diesel fuel for Type II. The repair outfit shall be capable o
4、f bonding to a coated fabric with any of the following base elastomers; nitrile, polyester polyurethane, polyether polyurethane, or neoprene. The repair outfit shall be capable of repairing tank and drum materials that have been contaminated with various fuels and water. Personnel wearing cold weath
5、er gloves or chemical protective gloves shall be capable of making a repair. a. Contractor shall certify that any substance released by a cured repair to 50 gallons of potable water to be below the EPA Maximum Contaminate Level when tested in accordance with National Sanitation Foundation (NSF) Stan
6、dard 61 or equivalent (see 7.2.4). b. Cured repair shall not contaminate the fuel stored in a repaired turbine fuel container. c. Cured repair shall not contaminate the fuel stored in a repaired diesel fuel container. Beneficial comments, recommendations, additions, deletions, clarifications, etc. a
7、nd any data that may improve this document should be sent by letter to: U.S. Army Tank-automotive and Armaments Command, ATTN: AMSRD-TAR-E/ASI, 6501 E. 11 Mile Road, Warren, MI 48397-5000 AMSC N/A FSC 5430 DISTRIBUTION STATEMENT A. Approved for public release; distribution is unlimited. Provided by
8、IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-A-A-52022A 2 3.2 Materials. Two component adhesives shall be provided in pre-measured containers. The pre-measured containers shall enable the user to mix the proper proportions of each component to form the approp
9、riate adhesive compound for type I, type II and type III repair outfits. 3.3 Adhesive properties. 3.3.1 Cured repair patch (diesel). The peel adhesion between a cured repair patch and a coated fabric sample shall be 30 pounds per inch (lbs/in.) (13.6 kilograms (kg) per 25 millimeters (mm) minimum wh
10、en tested in accordance with ASTM D413 (machine method, 180 degrees). The coated fabric shall be a virgin sample which is contaminated by soaking in diesel fuel conforming to MIL-DTL-46162 for seven days at room temperature and wiping dry. The coated fabric surface shall then be cleaned and prepared
11、 before applying the repair patch. All four exposed edges of the test sample shall be protected from the diesel fuel during soaking. 3.3.2 Cured repair patch (JP-8 or Jet A). The peel adhesion between a cured repair patch and an aged coated fabric sample shall be 15 lbs/in. (6.8 kg/25 mm) minimum wh
12、en tested in accordance with ASTM D413 (machine method, 180 degrees). The coated fabric shall be a virgin sample that is aged by soaking in JP-8 or Jet A-1 for 14 days at 160 degrees Fahrenheit (F) (71.1 degrees Celsius (C), then 42 days in distilled water. The coated fabric surface shall then be cl
13、eaned and prepared before applying the repair patch. All four exposed edges of the test sample shall be protected from the fuel during soaking. 3.4 Operating conditions. The repair outfit shall be capable of making a repair outdoors in dry weather between 40F (4.4C) and 80F (26.7C). The repaired sec
14、tion of a tank, drum, or berm liner shall have as a minimum the same resistance to damage and leakage as the unrepaired section of fabric when operating under the following conditions: a. Operational use of the equipment at ambient temperatures from -25F (-31.7C) to +125F (+51.7C). b. Folded storage
15、 of the equipment at ambient temperatures from -30F (-34.4C) to +160F. c. Continuous contact with rainwater and ground water. d. Contact with fuel. 3.5 Components. Each repair outfit shall be equipped with all the tools and materials required to make a repair. As a minimum, the repair outfit shall c
16、onsist of the following: a. Patches (compatible for use with fuel or water, as appropriate) 2 each b. Surface roughing tool 1 each c. Hand-held roller. 1 each d. Adhesive. 2 each e. Stirring stick or spatula. 2 each Provided by IHSNot for ResaleNo reproduction or networking permitted without license
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