1、1. SCOPE MIL-T-81 772B(AS) 29 January 1986 SUPERSEDING 12 February 1982 MIL-T-81772A(AS) MILITARY SPECIFICATION THINNER, AIRCRAFT COATING This specification is approved for use by the Naval Air Systems Command, Department of the Navy, and is available for use by all Departments and Agencies.of the D
2、epart- ment of Defense. 1.1 Scope. This specification covers the requirements for three types of thinner to be used in reducing aircraft coatings. 1.2 Classification. The aircraft coating thinners shall be furnished in the following types, as specified (see 6.2): Type I - Polyurethane thinner Type I
3、I - Epoxy thi nner Type III - Acrylic and alkyd thinner 2. APPLICABLE DOCUMENTS 2.1 Government documents. 2.1.1 Specifications, standards, and handbooks. Unless otherwise specified, the followinq specifications, ctandards. and handbooks of the issue listed in that issue o? the Department-of Defense.
4、Index of Specifications and Standards (DoDISS) specified in the solicitation form a part of this specification to the extent specified herein. SPECIFICATIONS FEDERAL PPP-C-96 Can, Metal, 28 Gage and Lighter. Beneficial comments (recommendations, additions, deletions) and any pertinent data which may
5、 be of use in improving this document should be addressed to: Systems Engineering and Standardization Department (Code 931, Naval Air Engineering Center, Lakehurst, NJ 08733-5100, by using the self-addressed Standardization Document Improvement Proposal (DD Form 1426) amearina at I the end of this d
6、ocument or by letter. AMSC NIA W I FSC 8010 DISTRIBUTION STATEMEBTA, -Approved for publfc release; distribution is unlimited. 7 ! THIS DOCUMENT CONTAINS JO - PAGES. fi . / Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-STANDARDS FEDERAL FED-STD-141
7、- Paint, Varnish, Lacquer and Related Materials, Methods of Inspection, Sampling and Testing. FED-STD-313 - Material Safety Data Sheets, Preparation and - Submission of. MI LITARY MIL-STD-105 - Sampl i ng Procedures and Inspection by Attributes MIL-STD-129 - Marking for Shipment and Tables for Stora
8、ge. MI L-STD-290 - Packaging of Petroleum and Related Products. 2.1.2 Other Government documents, drawings, and publications. The following other Government documents form a part of this specification to the extent specified herein. CODE OF FEDERAL REGULATIONS 49 CFR - Regulations for the Transporta
9、tion of Hazardous Materi al S. (Application for copies of the Code of Federal Regulations (CFR) should be addressed to the Superintendent of Documents, U.S. Government Printing Office, Washington, DC 20402.) (Copies of specifications, standards, handbooks, drawings, and publications required by manu
10、facturers in connection with specific acquisition functions should be obtained from the contracting activity or as directed by the contracting officer.) 2.2 Other publications. The following document(s) form a part of this specification to the extent specified herein. The issues of the documents whi
11、ch are indicated as DoD adopted shall be the issue listed in the current DoDISS and the supplement thereto, if applicable. AMERICAN SOCIETY FOR TESTING AND MATERIALS (ASTM) ASTM D 56 Test for Flash Point by Tag Closed Tester. ASTM D 1296 Test for Odor of Volatile Solvents and Diluents. ASTM D 1353 T
12、est for Nonvolatile Matter in Volatile Solvents for use in Paint, Varnish, Lacquer and Related Product s . ASTM D 1364 Test for Water in Vol ati 1 e Sol vents. ASTM D 2804 Test for Purity of Methyl Ethyl Ketone by Gas Chromatography. Provided by IHSNot for ResaleNo reproduction or networking permitt
13、ed without license from IHS-,-,-(Application for copies should be addressed to the American Society for Testing and Materials, 1916 Race Street, Philadelphia, PA 19103.) AMERICAN NATIONAL STANDARDS INSTITUTE ANSI Z 129.1 - Precautionary Labeling of Hazardous Industrial Chemi cal s. (Application for
14、copies should be addressed to the American National Standards Institute, Inc., 1430 Broadway, New York, NY 10018) UNIFORM CLASSIFICATION COMMITTEE, AGENT Uniform Freight Classification Rules (Application for copies should be addressed to the Uniform Classification Committee, Room 1106, 222 South Riv
15、erside Plaza, Chicago, IL 60606.) (Industry association specifications and standards are generally available for reference from libraries. 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 specif
16、ication and the references cited herein, the text of this specification shall take precedence. 3. REQUIREMENTS 3.1 Materials. Materials shall be of the highest quality used in commercial practice and entirely suitable for the purpose intended under normal conditions of use. It shall contain no chlor
17、inated hydrocarbons or other solvents of a toxic nature. Type I materials shall be free from water and alcohols that would adversely affect the performance of polyurethane coatings. 3.2 Composition. The composition shall conform to the percentages by volume given in table I. 3.3 Quantitative require
18、ments. The thinner shall meet the quantitative requirements specified in table II. 3.4 Qualitative requirements. 3.4.1 Appearance. The appearance of the thinner shall be clear and free from suspended matter when examined by transmitted light (see table 1.11). 3.4.2 Odor. The odor shall be characteri
19、stic of the ingredients and not noticeable after drying from filter paper (see table III). 3.4.3 Spot test. The thinner shall leave no oily spot or stain on filter paper (see table III). Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-“ MIL-T-BL772B
20、BO m 979970b OLL0417 7 W “ * 3.5 Material Safety Data Sheets. A Material Safety Data Sheet shalT be prepared and submitted in accordance with FED-STD-313. Questions pertinent to the effect of the thinner on the heal th of personnel when used for its intended purpose shall be referred by the acquirin
21、g activity to the appropriate medical service who wi 11 act as adviser to the acquiring activity (see 4.4 and 6.2(f). * 3.6 Additional unit pack markings. In addition to those markings required in section 5, unit pack markings shall contain use, mixing, handling and precautionary markings as well as
22、 noting any protective clothing and equipment requi red. 4. QUALITY ASSURANCE 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 ot
23、herwise specified in the contract or purchase order, the contractor may use his 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 perform any of the inspections set fort
24、h in the specification where such inspections are deemed necessary to assure suppl ies and servi ces conform to prescribed requirements. 4.2 Classification of inspection. The inspection specified herein is classified as qual i ty conformance inspection. 4.3 Sampling. 4.3.1 Sampling for examinations
25、and tests. 4.3.2.1 Inspection of filled containers. A random sample of filled containers shall be selected from each inspection lot in accordance with MIL-STD-105, inspection level I, and an acceptable quality level (AQL) of 2.5 percent defective to verify compliance with this specification regardin
26、g fill, closure, marking and other requirements not involving tests. Inspection shall be as specified in 4.5.1. 4.3.2.2 Inspection of packaging. A random sample of packaged thinner, fully prepared for delivery, shall be selected from each inspection lot in accordance with MIL-STD-105, inspection lev
27、el S-2, and an AQL of 2.5 percent defective to verify compliance with section 5 not involving tests. Examination shall be in accordance with 4.5.2 and 4.5.3. 4.3.3 Sampling for tests. Two f random from each insDection lot. If shipment, each lot represented shall i 1 led containers shall be selected
28、at more than one lot is represented in the be treated as a separate shipment for sampl i ng purposes. The contents of each fi 1 led container, selected at random for sampling, shall be thoroughly mixed immediately prior to sampling. Each sample shall be tested to determine compliance with this speci
29、fication. The samples selected shall be subjected separately to the tests specified in 4.5.4. If either sample fails one or more of these tests, the lot shall be rejected. 4 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-T-81 772B(AS) * 4.4 Subm
30、ission of Material Safety Data Sheets. The contractor shall required to evaluate the safety of the material for the proposed use through the submission of the Material Safety Data Sheet detailed in FED-STD-313. 0 furnish to the contracting activity the toxicological data and formulations 4.5 Methods
31、 of inspection. 4.5.1 Examination of filled containers. Each sample filled container selected in accordance with 4.3.2.1 shall be examined for defects of the container and the closure, for evidence of leakage and for unsatisfactory markings (see section 5 and 3.6). Each sample filled container shall
32、 also be weighed to determine the amount of contents. Any container in the sample, having one or more.defects, or under required fill, shall be rejected and if for the applicable sampling plan of MIL-STD-105, the lot represented by the sample shall be rejected. * 4.5.2 Examination of packaging and m
33、arking. An examination shall be made to determi ne that packaging, packing and marking comply with the requirements of Section 5 of this specification. Defects shall be scored in accordance with the 1 ist below. The sample unit for this examination shall be one shipping container fully prepared for
34、delivery except that it shall not be palletized and need not be sealed. Shipping containers fully prepared for delivery that have not been palletized shall be examined for defects of closure. The lot size shall be the number of shipping containers in the end item inspection lot. The samples for this
35、 examination shall be selected at random in accordance with MIL-STD-105, inspection level S-2 and acceptable a the number of defective containers in any sample exceeds the acceptance number 0 quality level (AQL) 4.0 defects per hundred units. Exami ne Defect Packaging Markings Container not as speci
36、fied, closures not accomplished by specified or required methods or materials. Leakage or seepage of contents. Non-conforming component, component missing, damaged or otherwise defective. Bulged or distorted container. Data, including directions for use, omi tted, i 1 1 egi-bl e, i ncorrect , i n- c
37、omplete, or not in accordance with contract requirements. * 4.5.3 Examination for palletization. An examination shall be made to determine that palletization complies with the requirements of Section 5 of this specification. Defects shall be scored in accordance with the list below. The sample unit
38、shall be one palletized unit load fully prepared for delivery. The lot size shall be the number of palletized unit loads in the end item inspection lot. The samples for this examination shall be selected at random in accordance with MIL-STD-105, inspection level S-1 and acceptable qual i ty level (A
39、QL) 6.5 defects per hundred units. 5 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-Exami ne Finished dimension Palletization Defect Length, width, or height exceeds specified maximum requirement. Not as specified. Pallet pattern not as specified. I
40、nterlocking of loads not as specified. Load not bonded with required straps as specified. Weight Exceeds maximum load limits. Marki ng Omitted, incorrect, illegible, of improper size, location, sequence or method of application. 4.5.4 Test procedures. The thinner shall be tested in accordance with t
41、able III. 5. PACKAGING 5.1 Preservation and unit packing. Preservation and unit packing shall be level A, B, or C, as specified. The thinner shall, in the quantity specified in the contract or order, be packaged and marked in accordance with the requirements of Title 49 of the Code of Federal Regula
42、tions. When specified, palletization is required for handling by mechanical equipment (see 6.2). 5.1.1 Level A and B. Unless otherwise specified (see 6.2), the thinner shall be unit packed in one gallon cans in accordance with the requirements of MIL-STD-290. 5.1.2 Level C. The thinner shall be unit
43、 packed in one gallon cans conforming with the requirements of 49 CFR. 5.2 Packing. Packing shall be level A, B or C in accordance with the requirements of MIL-STD-290. * 5.3 .Marking. All unit, intermediate and shipping containers shall be marked in accordance with MIL-STD-129 and include the addit
44、ional special marking requirements as specified by the acquiring activity. All unit and intermediate packs of toxic and hazardous chemicals and materials shall also be labeled in accordance with the applicable laws, statutes, regulations or ordnances, including Federal, State, and municipal requirem
45、ents. In addition unit and intermediate containers, including unit containers that serve as shipping containers such as pails and drums, shall be marked with the applicable precautionary information detailed in American National Standard ANSI Z 129.1. 6 “ “, x- Provided by IHSNot for ResaleNo reprod
46、uction or networking permitted without license from IHS-,-,- MIL-T-AJ772B AO 777770b OLLO“l20 7 MIL-T-81772B(AS) 6.1 Intended use. The thinner covered by this specification is intended for use in reducing aircraft coatings to the required viscosity (see 1.2). Type I - Polyurethane thinner is intende
47、d for use with: MI L-C-83231 - Coating, Polyurethane, Rain Erosion Resistant for Exterior Aircraft and Missile Plastic Parts Appl ications Low Infra-Red (IR) Reflective Resistant MI L-C-83286 - Coating, Urethane, Aliphatic Isocyanate, For Aerospace MIL-C-85285 - Coating, Polyurethane, Aliphatic, Wea
48、ther Resistar,t, * MI L-C-85322 - Coating, Elastomeric, Polyurethane, Rain-Erosion 4 Type II - Epoxy thinner is intended for use with: c MIL-C-22750 - Coating, Epoxy-Polyamide * MI L-P-23377 - Primer Coating, Epoxy Polyamide, Chemical and Solvent Resistant Type III - Acrylic and alkyd thinner is int
49、ended for use with: * TT-L-20 - Lacquer, Camouflage. * TT-L-32 - Lacquer, Cellulose Nitrate, Gloss. * TT-P-1 757 - Primer Coating, Zinc Chromate, Low-Moisture Sensitivity Corrosion Inhibiting, Fast-Drying. Use) Use) * TT-P-7962 - Primer Coating, Cellulose Nitrate, Modified Alkyd Type, MIL-L-19537 - Lacquer, Acrylic-Nitrocellulose Gloss (For Aircraft MIL-L-1 9538 - Lacquer, Acrylic Nitrocellulose, Camouflage (For Aircraft MIL-L-81 352 - Lacquer, Acrylic (Fo
