1、AEROSPACE MATERIAL SPECIFICATION AMS1540 REV. C Issued 1981-07 Revised 2008-03 Reaffirmed 2015-04 Superseding AMS1540B Cleaner, Thrust Reverser Water-Base RATIONALE AMS1540C has been reaffirmed to comply with the SAE five-year review policy. _ SAE Technical Standards Board Rules provide that: “This
2、report is published by SAE to advance the state of technical and engineering sciences. The use of this report is entirely voluntary, and its applicability and suitability for any particular use, including any patent infringement arising therefrom, is the sole responsibility of the user.” SAE reviews
3、 each technical report at least every five years at which time it may be revised, reaffirmed, stabilized, or cancelled. SAE invites your written comments and suggestions. Copyright 2015 SAE International All rights reserved. No part of this publication may be reproduced, stored in a retrieval system
4、 or transmitted, in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, without the prior written permission of SAE. TO PLACE A DOCUMENT ORDER: Tel: 877-606-7323 (inside USA and Canada) Tel: +1 724-776-4970 (outside USA) Fax: 724-776-0790 Email: CustomerServicesa
5、e.org SAE WEB ADDRESS: http:/www.sae.org SAE values your input. To provide feedback on this Technical Report, please visit http:/www.sae.org/technical/standards/AMS1540C 1. SCOPE 1.1 Form This specification covers a water-base cleaner in the form of a liquid. 1.2 Application This cleaner has been us
6、ed typically for removing thrust reverser stains and deposits from corrosion and heat resistant steel and aluminum alloy exterior surfaces of aircraft, but usage is not limited to such applications. 1.3 Safety - Hazardous Materials While the materials, methods, applications, and processes described
7、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 the safe and proper use of any hazardous materials and to take neces
8、sary precautionary measures to ensure the health and safety of all personnel involved. 2. APPLICABLE DOCUMENTS The issue of the following documents in effect on the date of the purchase order forms a part of this specification to the extent specified herein. The supplier may work to a subsequent rev
9、ision of a document unless a specific document issue is specified. When the referenced document has been cancelled and no superseding document has been specified, the last published issue of that document shall apply. 2.1 SAE Publications Available from SAE International, 400 Commonwealth Drive, War
10、rendale, PA 15096-0001, Tel: 877-606-7323 (ijside USA and Canada) or 724-776-4970 (outside USA), www.sae.org. AMS 2470 Anodic Treatment of Aluminum Alloys, Chromic Acid Process AMS 2825 Material Safety Data Sheets AMS 4037 Aluminum Alloy, Sheet and Plate, 4.4Cu - 1.5Mg - 0.60Mn (2024; -T3 Flat Sheet
11、, -T351 Plate), Solution Heat Treated AMS 4041 Aluminum Alloy, Alclad Sheet and Plate, 4.4Cu - 1.5Mg - 0.60Mn, Alclad 2024 and 1-1/2% Alclad 2024, -T3 Flat Sheet; 1-1/2% Alclad 2024-T351 Plate AMS 4045 Aluminum Alloy Sheet and Plate, 5.6Zn - 2.5Mg - 1.6Cu - 0.23Cr, 7075: (-T6 Sheet, -T651 Plate), So
12、lution and Precipitation Heat Treated AMS 4049 Aluminum Alloy, Sheet and Plate, Alclad, 5.6Zn - 2.5Mg - 1.6Cu - 0.23Cr (Alclad 7075; -T6 Sheet, -T651 Plate), Solution and Precipitation Heat Treated AMS 4911 Titanium Alloy, Sheet, Strip, and Plate, 6Al - 4V, Annealed AMS 5045 Steel, Sheet and Strip,
13、0.25 Carbon, Maximum, Hard Temper AMS-P-83310 Plastic Sheet, Polycarbonate, Transparent 2.2 ASTM Publications Available from ASTM International, 100 Barr Harbor Drive, P.O. Box C700, West Conshohocken, PA 19428-2959, Tel: 610-832-9585, www.astm.org. ASTM D 56 Flash Point by Tag Closed Tester ASTM D
14、1568 Sampling and Chemical Analysis of Alkylbenzene Sulfonates ASTM F 483 Total Immersion Corrosion Test for Aircraft Maintenance Chemicals ASTM F 484 Stress Crazing of Acrylic Plastics in Contact with Liquid or Semi-Liquid Compounds ASTM F 485 Effects of Cleaners on Unpainted Aircraft Surfaces ASTM
15、 F 502 Effects of Cleaning and Chemical Maintenance Materials on Painted Aircraft Surfaces ASTM F 519 Mechanical Hydrogen Embrittlement Testing of Plating Processes and Aircraft Maintenance Chemicals ASTM F 1104 Preparing Aircraft Cleaning Compounds, Liquid Type, Water Base, for Storage Stability Te
16、sting ASTM F 1110 Sandwich Corrosion Test ASTM F 1111 Corrosion of Low Embrittling Cadmium Plate by Aircraft Maintenance Chemicals 2.3 U.S. Government Publications Available from the Document Automation and Production Service (DAPS), Building 4/D, 700 Robbins Avenue, Philadelphia, PA 19111-5094, Tel
17、: 215-697-6257, http:/assist.daps.dla.mil/quicksearch/. MIL-STD-870 Cadmium Plating, Low Embrittlement, Electrodeposition MIL-STD-2073-1 DOD Materiel, Procedures for Development and Application of Packaging Requirements 3. TECHNICAL REQUIREMENTS 3.1 Material The composition of the cleaner shall be o
18、ptional with the manufacturer but should contain water, biodegradable surfactants, and other additives as required to produce a homogeneous product meeting the requirements of 3.2. 3.2 Properties The cleaner shall conform to the following requirements; tests shall be performed in accordance with spe
19、cified test methods on the product in concentrated form except as otherwise specified in 3.2.5 and 3.2.7: 3.2.1 Corrosion of Metal Surfaces 3.2.1.1 Sandwich Corrosion Specimens shall pass the sandwich corrosion test, determined in accordance with ASTM F 1110. SAE INTERNATIONAL AMS1540C Page 2 of 6_
20、3.2.1.2 Total Immersion Corrosion The product shall neither produce evidence of corrosion of the panels nor cause a weight change of any test panel greater than shown in Table 1, determined in accordance with ASTM F 483: TABLE 1 - MAXIMUM IMMERSION CORROSION WEIGHT CHANGE Test Panel Weight Change mg
21、/cm2per 24 hours AMS4037 Aluminum Alloy, anodized as in AMS2470 0.3 AMS4041 Aluminum Alloy 0.3 AMS4045 Aluminum Alloy 0.3 AMS4049 Aluminum Alloy 0.3 AMS4911 Titanium Alloy 0.1 AMS5045 Carbon Steel 0.8 3.2.1.3 Low-Embrittling Cadmium Plate Test panels coated with low-embrittling cadmium plate shall n
22、ot show a weight change greater than 0.3 mg/cm2per 24 hours, determined in accordance with ASTM F 1111. 3.2.2 Hydrogen Embrittlement The cleaner shall be non-embrittling, determined in accordance with ASTM F 519, utilizing Types 1a, 1c, or 2a specimens, cadmium plated in accordance with MIL-STD-870,
23、 Class 1, Type I. Type 1a and 1c specimens shall be loaded to 45% of the predetermined notch fracture strength, and Type 2a specimens loaded to 80% of the yield strength. The entire 2a stressed specimen, or just the notched area of the 1a and 1c stressed specimen, shall be immersed continuously in t
24、he solution under test for 150 hours at a temperature between 68 to 86 F (20 to 30 C). 3.2.3 Effect on Plastics The product shall not craze, stain, or discolor Type C acrylic plastic, determined in accordance with ASTM F 484. The product shall not craze, stain, or discolor MIL-P-83310 polycarbonate
25、plastic or polysulfone plastic, determined in accordance with test procedures specified in ASTM F 484 on specimens stressed for 30 minutes 2 to an outer fiber stress of 3000 psi (20.7 MPa). 3.2.4 Effect on Unpainted Surfaces The cleaner shall neither produce streaking nor leave any stains requiring
26、polishing to remove, determined in accordance with ASTM F 485. 3.2.5 Effect on Painted Surfaces The product, tested at manufacturers recommended dilution, shall neither decrease the hardness of the paint film by more than two pencil hardness levels nor shall it produce any streaking, discoloration,
27、or blistering of the paint film, determined in accordance with ASTM F 502. 3.2.6 Flash Point Shall not be lower than 140 F (60 C), determined in accordance with ASTM D 56. 3.2.7 Solubility The concentrate shall be completely soluble in water to make a uniform solution free of gelatinous lumps, layer
28、ing of ingredients, or sediment. There shall be no violent or dangerous reactions when the concentrate is diluted according to manufacturers recommendations. SAE INTERNATIONAL AMS1540C Page 3 of 6_ 3.2.8 Storage Stability The product shall neither show separation from exposure to heat or cold nor sh
29、ow an increase in turbidity greater than a control sample, determined in accordance with ASTM F 1104. 3.2.9 Performance The product, when used in accordance with manufacturers recommendations, shall remove carbon deposits and thrust reverser stains normally found on exterior surfaces of aircraft. 3.
30、3 Quality Cleaner, as received by purchaser, shall be a homogeneous liquid, free from sediment, abrasives, skins, lumps, and foreign materials detrimental to usage of the cleaner. 4. QUALITY ASSURANCE PROVISIONS 4.1 Responsibility for Inspection The vendor of the cleaner shall supply all samples for
31、 vendors tests and shall be responsible for the performance of all required tests. Purchaser reserves the right to sample and to perform any confirmatory testing deemed necessary to ensure that the cleaner conforms to specified requirements. 4.2 Classification of Tests 4.2.1 Acceptance Tests Total i
32、mmersion corrosion (3.2.1.2), effect on plastics (3.2.3), effect on unpainted surfaces (3.2.4), and flash point (3.2.6) are acceptance tests and shall be performed on each lot. 4.2.2 Periodic Tests Sandwich corrosion (3.2.1.1), low-embrittling cadmium plate (3.2.1.3), hydrogen embrittlement (3.2.2),
33、 effect on painted surfaces (3.2.5), solubility (3.2.7), and performance (3.2.9) are periodic tests and shall be performed at a frequency selected by the vendor unless frequency of testing is specified by purchaser. 4.2.3 Preproduction Tests Tests for all technical requirements are preproduction tes
34、ts and shall be performed prior to or on the initial shipment of cleaner to a purchaser, when a change in ingredients and/or processing requires reapproval as in 4.4.2, and when purchaser deems confirmatory testing to be required. 4.2.3.1 For direct U.S. Military procurement, substantiating test dat
35、a and, when requested, preproduction test material shall be submitted to the cognizant agency as directed by the procuring activity, contracting officer, or request for procurement. 4.3 Sampling and Testing Shall be in accordance with ASTM D 1568; a lot shall be all cleaner produced in a single prod
36、uction run from the same batches of raw materials under the same fixed conditions and presented for vendors inspection at one time. 4.3.1 When a statistical sampling plan has been agreed upon by purchaser and vendor, sampling shall be in accordance with such plan in lieu of sampling as in 4.3 and th
37、e report of 4.5 shall state that such plan was used. SAE INTERNATIONAL AMS1540C Page 4 of 6_ 4.4 Approval 4.4.1 Sample cleaner shall be approved by purchaser before cleaner for production use is supplied, unless such approval be waived by purchaser. Results of tests on production cleaner shall be es
38、sentially equivalent to those on the approved sample. 4.4.2 Vendor shall use ingredients, manufacturing procedures, and methods of inspection on production cleaner which are essentially the same as those used on the approved sample cleaner. If necessary to make any change in ingredients or in manufa
39、cturing procedures, vendor shall submit for reapproval a statement of the proposed changes in ingredients and/or processing and, when requested, sample cleaner. Production cleaner made by the revised procedure shall not be shipped prior to receipt of reapproval. 4.5 Reports The vendor of cleaner sha
40、ll furnish with each shipment a report showing the results of tests to determine conformance to the acceptance test requirements and, when performed, to the periodic test requirements and stating that the cleaner conforms to the other technical requirements. This report shall include the purchase or
41、der number, lot number, AMS1540C, manufacturers identification, and quantity. 4.5.1 A material safety data sheet conforming to AMS2825, or equivalent, shall be supplied to each purchaser prior to, or concurrent with, the report of preproduction tests results or, if preproduction testing be waived by
42、 purchaser, concurrent with the first shipment of cleaner for production use. Each request for modification of cleaner formulation shall be accompanied by a similar form for the proposed formulation. 4.6 Resampling and Retesting If any sample used in the above tests fails to meet the specified requi
43、rements, disposition of the cleaner may be based on the results of testing three additional samples for each original nonconforming sample. Failure of any retest sample to meet the specified requirements shall be cause for rejection of the cleaner represented. Results of all tests shall be reported.
44、 5. PREPARATION FOR DELIVERY 5.1 Packaging and Identification 5.1.1 Cleaner shall be packaged in containers of a type and size agreed upon by purchaser and vendor. 5.1.2 A lot of cleaner may be packaged in small quantities and delivered under the basic lot approval provided lot identification is mai
45、ntained. 5.1.3 Each container shall be legibly marked with not less than AMS1540C, purchase order number, manufacturers identification, lot number, and quantity. 5.1.4 Containers of cleaner shall be prepared for shipment in accordance with commercial practice and in compliance with applicable rules
46、and regulations pertaining to the handling, packaging, and transportation of the cleaner to ensure carrier acceptance and safe delivery. 5.1.5 For direct U.S. Military procurement, packaging shall be in accordance with MIL-STD-2073-1, Commercial Level, unless Level A is specified in the request for
47、procurement. 6. ACKNOWLEDGMENT A vendor shall mention this specification number and its revision letter in all quotations and when acknowledging purchase orders. SAE INTERNATIONAL AMS1540C Page 5 of 6_ 7. REJECTIONS Cleaner not conforming to this specification, or to modifications authorized by purc
48、haser, will be subject to rejection. 8. NOTES NOTICE This document references a part which contains cadmium as a plating material. Consult local officials if you have questions concerning cadmiums use. 8.1 A change bar (|) located in the left margin is for the convenience of the user in locating areas where technical revisions, not editorial chang
