1、SAE-AMS-T-6841ADOPTION NOTICESAE-AMS-T-6841, “TAPE AND SHEET, ADHESIVE, RUBBER AND CORKCOMPOSITION“, was adopted on 31-AUG-99 for use by the Departmentof Defense (DoD). Proposed changes by DoD activities must besubmitted to the DoD Adopting Activity: ASC/ENOI, Building 560,2530 Loop Road West, Wrigh
2、t-Patterson AFB, OH 45433-7101. Copies of this document may be purchased from the Society ofAutomotive Engineers 400 Commonwealth Drive Warrendale,Pennsylvania, United States, 15096-0001. http:/www.sae.org/_Custodians: Adopting Activity:Air Force - 11Army - MRNavy - ASAir Force - 11Reviewer Activiti
3、es:Army - AVNavy - SHAir Force - 84, 99DLA - CC, GSFSC 9320DISTRIBUTION STATEMENT A: Approved for public release; distributionis unlimited.Copyright SAE International Provided by IHS under license with SAENot for ResaleNo reproduction or networking permitted without license from IHS-,-SAE Technical
4、Standards Board Rules provide that: “This report is published by SAE to advance the state of technical and enginee ring sciences. The use of this report is entirelyvoluntary, and its applicability and suitability for any particular use, including any patent infringement arising therefrom, is the sol
5、e responsibility of the user.”SAE reviews each technical report at least every five years at which time it may be reaffirmed, revised, or cancelled. SAE invit es your written comments and suggestions.Copyright 1998 Society of Automotive Engineers, Inc.All rights reserved. Printed in U.S.A.QUESTIONS
6、REGARDING THIS DOCUMENT: (724) 772-7161 FAX: (724) 776-0243TO PLACE A DOCUMENT ORDER: (724) 776-4970 FAX: (724) 776-0790SAE WEB ADDRESS: http:/www.sae.org400 Commonwealth Drive, Warrendale, PA 15096-0001AEROS PACE MATERIAL SPECIFIC ATIONSubmitted for recognition as an American National StandardAMS-T
7、-6841Issued SEP 1998Tape and Sheet, Adhesive, Rubber and Cork CompositionNOTICEThis document has been taken directly from U.S. Military Specification MIL-T-6841D, and contains only minor editorial and format changes required to bring it into conformance with the publishing requirements of SAE techni
8、cal standards. The initial release of this document is intended to replace MIL-T-6841D. Any part numbers established by the original specification remain unchanged.The original Military Standard was adopted as an SAE standard under the provisions of the SAE Technical Standards Board (TSB) Rules and
9、Regulations (TSB 001) pertaining to accelerated adoption of government specifications and standards. TSB rules provide for (a) the publication of portions of unrevised government specifications and standards without consensus voting at the SAE Committee level, and (b) the use of the existing governm
10、ent specification or standard format.Under Department of Defense policies and procedures, any qualification requirements and associated qualified products lists are mandatory for DOD contracts. Any requirement relating to qualified products lists (QPLs) has not been adopted by SAE and is not part of
11、 this technical report.1. SCOPE:1.1 Form: This specification covers one type of tape and sheet for use in the installation of windshields, panels, and windows in cabins and cockpits of aircraft. 1.2 Application: The tape and sheet are intended for use as a seal and packing for the installation of gl
12、ass or acrylic plastic windshields, panels and windows in cabins and cockpit of aircraft.Copyright SAE International Provided by IHS under license with SAENot for ResaleNo reproduction or networking permitted without license from IHS-,-AMS-T-6841 SAE AMS-T-6841- 2 -1.3 Safety-Hazardous Materials: Wh
13、ile the materials, methods, applications, and processes described or referenced in this specification may involve the use of hazardous materials, this specification does not address the hazards which may be involved in such use. It is the sole responsibility of the user to ensure familiarity with th
14、e safe and proper use of any hazardous materials and to take necessary precautionary measures to ensure the health and safety of all personnel involved.2. APPLICABLE DOCUMENTS: The following documents, of the issue in effect on date of invitation for bids or request for proposal, form a part of this
15、 specification to the extent specified herein. 2.1 U.S. Government Publications: Available from DODSSP, Subscription Services Desk, Building 4D, 700 Robbins Avenue, Philadelphia, PA 19111-5094.L-P-390 Plastic, Molding Material, Polyethylene, Low and Medium DensityNN-P-530 Plywood, Flat PanelQQ-A-250
16、/4 Aluminum Alloy 2024, Plate and SheetTT-T-291 Thinner, Paint, Volatile Spirits (Petroleum Spirits)UU-P-268 Paper; Kraft, Untreated, WrappingMMM-A-260 Adhesive, Water-resistant (For Sealing Waterproof Paper)PPP-B-601 Boxes, Wood, Cleated-PlywoodPPP-B-621 Boxes, Wood, Nailed and Lock-CornerPPP-B-636
17、 Box, FiberboardPPP-B-1055 Barrier Material, Waterproofed FlexiblePPP-T-45 Tape, Gummed Paper Reinforced however, this does not authorize submission of known defective material, either indicated or actual, nor does it commit the purchaser to accept defective material.4.2 Classification of tests: The
18、 inspection requirements specified herein are classified as quality conformance inspections (see 4.3).4.3 Quality conformance inspection: Samples shall be labeled completely with information identifying the purpose of the sample, name of product, specification number, lot number, date of sampling an
19、d contract number.4.3.1 Inspection: 4.3.1.1 Inspection lot: A lot shall consist of all material manufactured in the same identifiable production period, by the same process under the same operating conditions, and submitted for manufacturers inspection at one time.4.3.1.2 Samples for quality conform
20、ance tests: The sample unit for each lot shall consist of 10 linear feet of tape, or 1 sheet. Two inch wide specimens shall be supplied for the water vapor transmission rate test. The inspection level for determining the sample size shall be S-1 of MIL-STD-105, except that not less than three sample
21、 units shall be randomly selected throughout the lot. The index level shall be 4.0 expressed in defects per 100 units. The lot size, for purpose of testing, shall be expressed in units of rolls or cut sheets, as applicable, of the specified width, length, and thickness.Copyright SAE International Pr
22、ovided by IHS under license with SAENot for ResaleNo reproduction or networking permitted without license from IHS-,-AMS-T-6841 SAE AMS-T-6841- 7 -4.3.2 Examination of component materials: In addition to conformance with quality assurance provision of any subsidiary specification, component material
23、 shall be examined as specified in table IV. In addition, the supplier shall furnish a certificate stating the cork content and adhesive conform to the requirements of 3.1.1 and 3.1.3, respectively. There shall be no evidence of failure to meet the requirements as applicable.TABLE IV. Examination of
24、 component materials4.3.3 Examinant of the end item: The tape and sheet shall be visually examined to determine conformance with the requirements of this specification with respect to appearance, workmanship, construction, and dimension. The lot size shall be expressed in units of rolls or sheets. D
25、efects found during this examination shall be scored in accordance with 4.3.3.1 through 4.3.3.4.4.3.3.1 Examination for defects in appearance and workmanship: For examination of defects of tape (rolls), the sample unit shall be 1 yard. For examination of sheets (Flat cut), the sample unit shall be 1
26、 sheet. The index level for this examination shall be 1.5 defects per 100 units. The sample size shall be based on level 1 of MIL-STD-105. Both sides of the tape and sheet shall be examined and shall conform to the requirements of table V.Copyright SAE International Provided by IHS under license wit
27、h SAENot for ResaleNo reproduction or networking permitted without license from IHS-,-AMS-T-6841 SAE AMS-T-6841- 8 -TABLE V. Defects in appearance and workmanship4.3.3.2 Examination for defects in construction: The sample unit for this examination shall be 1 roll or 1 sheet, as applicable. The index
28、 for this examination shall be 2.5 defects per 100 units. The sample size shall be based on level S-3 of MIL-STD-105 and shall conform to the requirements of table VI.TABLE VI. Defects in construction4.3.3.3 Examination for dimensional defects: The sample unit for this examination shall be 1 roll or
29、 1 sheet, as applicable. The index level for this examination shall be 2.5 defects per 100 units. The sample size shall be based on level S-2 of MIL-STD-105 and shall conform to the requirements of table VII.TABLE VII. Defects in dimensionsCopyright SAE International Provided by IHS under license wi
30、th SAENot for ResaleNo reproduction or networking permitted without license from IHS-,-AMS-T-6841 SAE AMS-T-6841- 9 -4.3.3.4 Examination for length per roll: The sample unit for this examination shall be 1 roll. The index level for this examination shall be 4.0 defects per 100 units. The sample size
31、 shall be based on level S-2 of MIL-STD-105. The length per roll shall not vary by more than the plus or minus tolerance from the length specified.4.3.4 Examination of preparation for delivery: An examination shall be made to determine that packaging, packing, and markings comply with sections 5 of
32、this specification. The sample unit for this examination shall be one shipping container fully packed, selected just prior to the closing operations. Defects of closure listed herein shall be examined on shipping containers fully prepared for delivery. The lot size shall be the number of shipping co
33、ntainers in the end item inspection lots. The inspection level shall be S-2 and the index level shall be 4.0 defects per 100 units and shall conform to the requirements of table VIII.TABLE VIII. Preparation for delivery4.4 Test conditions: 4.4.1 Atmospheric: Unless otherwise specified for the partic
34、ular test, all tests shall be accomplished under standard atmospheric conditions 50 +2 percent relative humidity at a temperature of 23 1C (73 2F). Samples shall be exposed to these conditions for at least 2 hours before testing.4.4.2 Oven aging: Oven aging specimens shall be given an accelerated ag
35、ing by subjecting them to dry circulating air for 70 1 hours at 100 1C (212 2F).Copyright SAE International Provided by IHS under license with SAENot for ResaleNo reproduction or networking permitted without license from IHS-,-AMS-T-6841 SAE AMS-T-6841- 10 -4.5 Quality conformance: Quality conforman
36、ce tests for acceptance of individual lots shall consist of tests for all requirements specified in section 3 as listed in table IX.TABLE IX. Quality conformance tests4.6 Test methods: 4.6.1 Thickness: The thickness of samples shall be measured in not less than five areas and the average thickness c
37、omputed from the results of the individual determinations. The gages employed shall have flat, parallel bearing surfaces 0.250+0.010, -0.000 inch in diameter at both contact areas, and the pressure exerted shall be 1/4 pound. The accuracy of measurement shall be 0.001 inch.4.6.2 Weight: A specimen a
38、pproximately 12 inches in length shall be cut from the sample. The width and length of the specimen shall be determined to the nearest 0.01 inch, and the weight determined with a balance to an accuracy of 1 percent. The weight per square yard shall be calculated from the test results.Copyright SAE I
39、nternational Provided by IHS under license with SAENot for ResaleNo reproduction or networking permitted without license from IHS-,-AMS-T-6841 SAE AMS-T-6841- 11 -4.6.3 Compressibility and recovery: Specimens 1 inch in diameter shall be cut and plied up at least 1/4 inch in thickness. The pieces sha
40、ll be arranged in a single stack with edges even. The thickness of the combined samples shall be measured under an initial load 1 pound per sq. inch (psi), applied for 15 seconds. The stacked specimens shall be compressed under a load of 78.5 pounds for 5 minutes and the amount of compression record
41、ed. The pressure shall be released for 5 minutes and another measurement made under a 1-pound load per square inch. The percent of compressibility and percent of recovery shall be calculated by the following formulas:(Eq. 1)(Eq. 2)(Eq. 3)Where:t o = original thicknesst c = compressed thicknesst r =
42、recovered thicknessThe apparatus for tests shall consist of a small load press, the platform and the presser foot, which shall be large enough to completely cover the sample under test. The moving head of the apparatus shall be equipped with suitable means for measuring thickness under the different
43、 compressions.4.6.4 Low temperature resistance: Using a suitable testing machine, the load to compress a single layer specimen 25 percent shall be determined as 21 3C (70 5F). At least four equal weights shall be added at 1 minute 2 second intervals until at least 25 percent compression is obtained.
44、 The test shall be run in triplicate and results averaged. A single layer specimen shall be conditioned in cold chamber for 5 hours at -40C 1C (-40 2F). At the end of conditioning period, the load which compressed the material 25 percent at room temperature shall be applied to the specimen in the co
45、ld chamber and the amount of compression recorded. At least four equal weights shall also comprise the load and the weights added at 1 minute +2 second intervals. This test shall be conducted in triplicate and results averaged. Low temperature resistance in percent shall be calculated as follows:(Eq
46、. 4)Percent compressibility Actual amount of compression in inches x 100Original thickness-=Percent thickness of original after recovery Thickness after 5 minutes x 100Original thickness-=Formula to determine percent recovery:Percent recovery = 100 tr tcto tc-Low temperature resistance percent()Perc
47、ent compression at -401C (-402F) under loadproduced 25 percent compression at 21+3C(70+5F) x 10025-=Copyright SAE International Provided by IHS under license with SAENot for ResaleNo reproduction or networking permitted without license from IHS-,-AMS-T-6841 SAE AMS-T-6841- 12 -4.6.5 Adhesive strengt
48、h: A test specimen 1 inch wide by 3 inches long shall be aged at 70 1C (158 2F) for 7 days in a circulating hot air oven. The specimens shall be allowed to rest 24 hours after removal from the oven before testing. A highly polished aluminum alloy panel conforming to QQ-A-250/4 (2024) shall be cleaned
