1、MILITARY SPECIFICATION AllHESIVE, MIDIFIED-EPOXY, FLEXIBLE, TWO-PART (METRIC) This specification is approved for use by the Naval Sea Systems Command, Department of the Navy and is available for use by all Departments and Agencies of the Department of Defense. 1. SCOPE 1.1 Scope. This specification
2、covers one type of room temperature curing, two-part, flexible, modified-epoxy adhesive. 2. APPLICABLE DOCUMENTS 2.1 Government documents. 2.1.1 Specifications, standards, and handbooks. Unless othemise specified, the following specifications, standards, and handbooks of the-issue listed in that iss
3、ue 06 the Department of Defense Index of Specifications and Standards (DoDISS) specified in the solicitation form a part of this specification to the extent-specified herein. STANDARDS FEDERAL FED-Sm-313 Material Safety Data Sheets, Preparation and the Submission of MILITARY MIL-STD-105 MIL-STD-129
4、MIL-STD-1188 MIL-STD-1504 Sampling Procedures and Tables for Inspection by Attributes Marking for Shipment and Storage Commercial Packaging of Supplies and Equipment Abrasive Blasting . Beneficial comments (recommendations, additions, deletions) and any pertinent data which may be of use in improvin
5、g this document should be addressed to: Commanding Officer, Naval Ordnance Station (524), Indian Head, F40 20640, by. using the self-addressed Standardization Document Improvement Proposal (DD Form 1426) appearing at the end of this document or by letter. I FSC 8040 1 Provided by IHSNot for ResaleNo
6、 reproduction or networking permitted without license from IHS-,-,-(Copies of spccifications, standards, handbooks, tlr;lwings, 3rd publications required by manufacturers in connection with specific acquisition functions should be obtained from the contracting activity or as dirccted by thc contract
7、ing officer.) 2.1.2 Other Government documents, drawings, and publications. The following other Government documents, drawings, and publications form a part of this specification to the extent specified herein. OCCUPATIONAL SAFETY AND HEALTH ADMINISTRATION (OSHA) OSHA 2206 OSHA- Safety and Health St
8、andards (Part 1910, Title 29 of the Code of Federal Regulations). (Application for-copies should be addressed to the Superintendent of Documents, Government Printing Office, Washington, DC 20402.) 2.2 Other publications The following documents form a part of this specification to the extent specifie
9、d herein. The issues of the documents which are indicated as DoD adopted shall be the issue listed in the current DoDISS and the supplement thereto, if applicable. AMERICAN NATIONAL STANDARDS INSTITUTE (ANSI) ANSI Z 129.1-76 Precautionary Labeling of Hazardous Industrial Chemicals (Application for.
10、copies should be addressed to the American National Standards Institute, 1430 Broadway, New York, NY 10018.) AMERICAN SOCIETY FOR TESTING AND MATERIALS (ASTM) AST“ D 638-80 Tensile Properties of Plastics AS“ D 1338-56 (R 72) Working Life of Liquid or Paste Adhesives by Consistency and Bond Strength
11、AST4 D 2393-80 o Viscosity of Epoxy Resins and Related Components (Application for copies should be addressed to the American Society for Testing and Materials, 1916 Race Street, Philadelphia, PA 19103.) NATIONAL PmOR FREIGHT ASSOCIATION, INC. , AGENT National Motor Freight Classification (Appkicati
12、on for copies should be addressed to American Trucking Associations, Attn: Traffic Department, 1616 P Street, Washington, DC 20036.) UNIFORM CLASSIFICATION CCMWITEE, AGENT Uniform Freight Classification (Application for copies should be addressed to the Uniform Classification Committee, Room 1106, 2
13、22 South Riverside Plaza, Chicago, IL 60606.) Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-DOD-A-82720 BO W 7997706 OLL0768 O m Don-A-82720 (OS) (Industry association specifications and standards are generally available for reference from librarie
14、s. They are also distributed among technical groups and using Federal agencies.) 2.3 Order of precedence. In the event of a conflict between the text of this specification and the references cited herein, the text of this specification shall take precedence. 3.1 First. article. When specified in the
15、 contract (see 6.2) , first article samples of the adhesive are required and shall be manufactured using the methods and procedures proposed for production. The samples shall be tested as specified in Section 4 for the purpose of determining, prior to starting production, that the contractors produc
16、tion methods are capable of producing adhesive that complies.with the technical requirements of the contract (see 4.5). 3.2 Material. The material shall be a structural, thermosetting, flexible, modified epoxy adhesive capable of being cured at 15 to 35C. 3.3 Form. The adhesive shall consist of two
17、liquid components; an accelerator hardener or curative designated as component A, and a base resin designated as component B, furnished in a kit such that the entire contents of the kit when mixed thoroughly will meet the requirements of this specification. 3.4 Miscibility. Components A and B shall
18、be entirely miscible when combined in accordance with the manufacturers instruction sheet (see 3.8). There shall be no evidence of aglomeration or separation of ingredients throughout the pot-life. of the material. 3.5 Physical and chemical properties. 3.5.1 Component properties. The properties of c
19、omponents A and B shall be in accordance with TABLE I i 3.5.2 Uncured adhesive properties. The properties of the uncured, mixed adhesive shall be in accordance with TABLE II. 3.5.3 Cured adhesive properties. The properties of the adhesive cured in accordance with 4.7.1.1 shall be in accordance with
20、TABLE III. 3 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-TABLE I. Component properties. Component A Min Max Min Max Property Component B Density, 25OC, g/ml 80 120 45 55 Viscosity, 25 C, Pa-S - l. 400 - l. 370 O - TABLE II. Uncured adhesive prope
21、rties. I Property Maximum Minimum Viscosity, 25OC, Pa. S - 75 Pot life, 25OC, minutes 100 30 TABLE III. Cured .adhesive properties. Property Tensile strength, 23OC, MPa Tensile Modulus,. 23C, MPa Elongation, 23OC, % . . Minimum , Maximum - 14 - 20 83 - 4 Provided by IHSNot for ResaleNo reproduction
22、or networking permitted without license from IHS-,-,-3.6 Stora e life. The adhesive components shall bc capablc of meeting the requirements + o this specification for a period of 12 months from the date of manufacture when stored in the original unopened containers at a maximum temperature of 27C. 3
23、.7 Toxicity. Composition of adhesive kits conforming to this specification shall be submitted to the Navys Bureau of Medicine and Surgery for approval and establishment of safety precautions in their use. These precautions will follow as a minimum the safety and health standards specified by OSHA 22
24、06. When a manufacturer has previously furnished toxicological product data which has been approved by the Bureau of Medicine and Surgery, resubmittal will not be necessary unless there is a change in the material composition. The contractor shall prepare and submit material safety data sheets in ac
25、cordance with Fm-STD-313 as specified in the contract (see 6.4). 3.8 Instruction sheet. The manufacturer shall provide the following information either on the container label or on a separate instruction sheet as apart of the kit. a B Mixing instructions. b. Surface preparations. c. Recommended appl
26、ication procedure, d. Recommendations for clean up of application tools. e. Precautionary warning of any toxicity. 3.9 Workmanship-. The material shall be uniform, free from contamination, foreign material or any other defect that would prevent its use for the purpose intended. 4. QUALITY ASSURANCE
27、PROVISIONS 4.1 Responsibility for inspection. Unless otherwise specified in the contract or purchase order, the contractor is responsible for the performance of all inspection requirements as specified herein. Except as othemise specified in the contract or purchase order, the contractor may use his
28、 own or any other facilities suitable for the performance of the inspection requirements specified herein unless disapproved by the Government. The Government reserves the right to perfom any of the inspections set forth in the specification where such inspections are deemed necessary to assure that
29、 supplies and services conform to prescribed requirements. 4.2 Inspection conditions. Unless otherwise specified (see 6.2), all inspections shall be performed under the following conditions: a. Temperature: Room ambient 18 to 35C b. Yumidity: Room ambient to 95 percent relative, maximum. 4.3 Classif
30、ication of inspections. The inspection requirements specified herein are classified as follows: a. First article inspection (see 4.5). b. Quality conformance inspection (see 4.6) . 5 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-4.4 Sampling. 4.4.1
31、 First article sample. When specified in the contract (see 6.2), a first article sample of one kit totaling a minimum of 1 kilogram (kg) of adhesive, manufactured in accordance with 3.1, shall be subjected to the first article inspection detailed in 4.5 at an activity designated by the procuring act
32、ivity (see 6.2). Acceptance of the first article sample shall be based on no defects in the sample. Further production of adhesive by the contractor prior to approval of the first article sample shall be at the contractors risk. 4.4.2 Lot. Unless otherwise specified in the contract (see 6.2) , a lot
33、 shall consist of all material manufactured in one continuous production run or in one batch, under essentially identical conditions, from the same raw materials, and to be offered for acceptance at one time. Several batches, manufactured from the same raw materials, may be blended to form a uniform
34、 larger batch which shall then constitute a lot for inspection purposes. - 4.4.3 Sampling. The sample unit shall be one kit of adhesive or container of material. Each sample shall consist of sufficient material to perform the quality conformance tests as specified in 4.6. 4.5 First article inspectio
35、n. One kit from the first article sample, having been submitted to and having passed the quality conformance inspection of 4.6, shall be subjected to the first article inspections of TABLE IV. lVhen specified in the contract (see 6.2.2), a first article inspection test report shall be prepared and s
36、ubmitted to the Frocuring activity. TABLE IV. First article inspection, I Property Requirement llethod Tensile strength TABLE III 4.7.1 Elongation TABLE III 4.7.1 Tensi le modulus TARLE I II 4.7.1 6 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-DOD
37、-A-82720 80 m 7797706 OLL0772 2 W DOD-A-82720(OS) TABLE V. Quality conformance inspection. Property Requirement Method Density TABU I 4.7.2 Viscosity Adhesive TABLE II 4.7.3 Components TABLE I Pot life TABLE II 4.7.4 Examination 3.3, 3.8, 3.9 4.7.5 PackaninR 5.1, 5.2 4.7.6 .- 46 Quality conformance
38、inspection. Each sample obtained in accordance with 4.8.3 shall be subjected to the tests and examinations of TABLE V. Failure of any sample to meet any requirement of this specification shall be cause for rejection of the lot. When specified in the contract (see 6.2.21, the contractor shall furnish
39、 test reports showing quantitative results for all quality conformance inspections required by this specification for each lot of material. 4.7 Test methods. 4.7.1 Tensile strength, elongation and tensile modulus. Tensile strength, elongation and tensile modulus shall be determined in accordance wit
40、h the following: 4.7.1.1 SpecFmen preparation, Prepare specimens by degassing the mixed adhesive and vacuum casting to give a finished specimen conforming to ASTM D 638 and having a thickness of 6 .O k O. 4 mm and the Type IV specimen configuration. Cure specimens at 650C for four hours using dead w
41、eights to procuce a molding pressure of 20 to 35 kPa. 4.7.1.2 Test. Determine tensile strength, modulus of elasticity and maximum elongation in accordance with ASTM D 638 using a speed of testing of 50 mdminute. Condition test specimens for two hours minimum, at 23C before testing. 4.7.2 Density. De
42、nsity of the epoyy resin and hardener shall be determined in accordance with the following: a. Weigh a calibrated specific gravity cylinder, with a ground glass stopper, to the nearest O. 1 milligram (mg) . Fill about two-thirds full with the epoxy resin or hardener to be tested. Avoid getting the s
43、ample on the ground neckof the cylinder. Centrifuge for 10 minutes at 1800 revolutions per minute (rpm) and insert the ground glass stopper. Weigh to the nearest 0.1 mg. o 7 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-DOD-A-82720 80 m 777770b OLL
44、0773 Lf DOD-A-82720(OS) b. Condition the sample in a constant temperature bath of 25.00 k .05“C for 15 minutes. Fill the cylinder with silicone oil of known density which has also been conditioned at 25.00 k .05“C. Carefully seat the ground glass stopper with a uniform insertion pressure. Immediatel
45、y apply acetone to remove the excess oil and water from the outside of the cylinder. Weigh the filled cylinder to the nearest 0.1 mg. w3- w2 V- d Where: W1 = Weight of tared specific gravity cylinder, g W2 = Weight of specific gravity cylinder plus sample, g V = Volume of specific gravity cylinder a
46、t 25“C, ml “3 = Weight of specific gravity cylinder plus sample d = Density of silicone oil at 25OC, g/mL and oil, R 4.7.3 Viscosity. Viscosity in Pascal seconds (Paos) of the adhesive and components A and B shall be determined in accordance with ASTM D 2393, Hodel RVF with No. 7 spindle at 20 qm. 4
47、.7.4 Pot life. The pot life of the adhesive shall be determined as specified in AST14 D 1338, Procedure A, using a 200-g sample and eight stirring cycles, minimum. Pot life is defined as the time elapsing between the moment the adhesive is ready for use and the time at which more than five seconds i
48、s required to complete a stirring cycle. 4.7.5 Examination. Sample containers shall be visually examined to verify conformance with the requirements of 3.3, 3.8 and 3.9. 5.1.1 Commercial. Unless otherwise specified in the contract (see 6.21, packaging and packing of the adhesive kits shall be in acc
49、ordance with standard commercial practice applicable to the type of material. The packaging and packing shall be of such construction and material that the contents will be adequately protected against loss or contamination. Minimum requirements for commercial packaging shall be in accordance with MIL-STD-1188. Containers shall conform to Uniform Freight Classification, National Motor Freight Classification or to rules of other
