1、AEROSPACE MATERIAL SPECIFICATIONAMS 1537BIssued OCT 1985Revised MAR 2001Superseding AMS 1537ACleaner, AlkalineHot-Tank Type1. SCOPE:1.1 Form: This specification covers an alkaline cleaner in the form of a liquid for use above 65 C (154 F).1.2 Application: This cleaner has been used typically for rem
2、oving soils from aluminum and magnesium alloy parts by immersion in hot cleaner solution prior to surface treatment, but usage is not limited to such applications.1.3 Safety - Hazardous Materials: While the materials, methods, applications, and processes described or referenced in this specification
3、 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 necessary precautionary measures to ensu
4、re 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 revision of a document unless a specif
5、ic document issue is specified. When the referenced document has been canceled and no superseding document has been specified, the last published issue of that document shall apply.SAE Technical Standards Board Rules provide that: “This report is published by SAE to advance the state of technical an
6、d 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 each technical report at least every five years at which time
7、it may be reaffirmed, revised, or cancelled. SAE invites your written comments and suggestions. Copyright 2008 SAE International All rights reserved. No part of this publication may be reproduced, stored in a retrieval system or transmitted, in any form or by any means, electronic, mechanical, photo
8、copying, recording, or otherwise, without the prior written permission of SAE. TO PLACE A DOCUMENT ORDER: Tel: 877-606-7323 (inside USA and Canada) Tel: 724-776-4970 (outside USA) Fax: 724-776-0790 Email: CustomerServicesae.org SAE WEB ADDRESS: http:/www.sae.org Reaffirmed JAN 2008AMS 1537B SAE AMS
9、1537B- 2 -2.1 SAE Publications: Available from SAE, 400 Commonwealth Drive, Warrendale, PA 15096-0001.AMS 2470 Anodic Treatment of Aluminum Alloys, Chromic Acid ProcessAMS 2475 Protective Treatments, Magnesium AlloysAMS 4037 Aluminum Alloy Sheet and Plate, 4.4Cu - 1.5Mg - 0.60Mn (2024: -T3 Flat Shee
10、t, -T351 Plate), Solution Heat TreatedAMS 4041 Aluminum Alloy Sheet and Plate, Alclad, 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 4049 Aluminum Alloy Sheet and Plate, Alclad, 5.6Zn - 2.5Mg - 1.6Cu - 0.23Cr (Alclad 7075; -T6 Sheet, -T65
11、1 Plate), Solution and Precipitation Heat TreatedAMS 4376 Magnesium Alloy Plate, 3.OAl - 1.OZn (AZ31B-H26), Cold Rolled and Partially Annealed2.2 ASTM Publications: Available from ASTM, 100 Barr Harbor Drive, West Conshohocken, PA 19428-2959.ASTM D 56 Flash Point by Tag Closed TesterASTM D 1193 Reag
12、ent WaterASTM D 1568 Sampling and Chemical Analysis of Alkylbenzene SulfonatesASTM E 70 pH of Aqueous Solutions with the Glass ElectrodeASTM F 483 Total Immersion Corrosion Test for Aircraft Maintenance ChemicalsASTM F 1104 Preparing Aircraft Cleaning Compounds, Liquid Type, Water Base, for Storage
13、Stability TestingASTM F 1110 Sandwich Corrosion Test3. TECHNICAL REQUIREMENTS: 3.1 Material: The composition of the cleaner shall be optional with the manufacturer but shall produce a product meeting the requirements of 3.2.3.2 Properties: The cleaner shall conform to the following requirements; tes
14、ts shall be performed in accordance with specified test methods:3.2.1 Total Immersion Corrosion: The product shall neither cause evidence of corrosion nor a weight change of any test panel greater than that shown in Table 1, determined in accordance with ASTM F 483 at highest concentration and tempe
15、rature recommended for the cleaner by the manufacturer:AMS 1537B SAE AMS 1537B- 3 -3.2.2 Sandwich Corrosion: Cleaner shall produce a rating not worse than 1, determined in accordance with ASTM F 1110.3.2.3 Solubility: The cleaner shall be readily soluble in water at maximum concentration and minimum
16、 temperature specified by manufacturer.3.2.4 pH Value: Shall be between 9.0 and 11.5 on a 5% by volume solution, determined in accordance with ASTM E 70 at room temperature, making no correction for sodium ion.3.2.5 Flash Point: Shall be not lower than 70 C (158 F), determined in accordance with AST
17、M D 56 or other method acceptable to purchaser.3.2.6 Cleaning Performance: The prepared cleaning solution shall remove not less than 70% of the soil on panels prepared and tested in accordance with 3.2.6.1 and 3.2.6.2.3.2.6.1 Soiling Procedure: Four 2 x 4 inch (51 x 102 mm) AMS 4041 aluminum alloy p
18、anels shall be coated with test soil prepared in accordance with Table 2. The soiling mixture shall be well mixed and maintained at 25 C 1 (77 F 2) during the soiling procedure. Immerse four panels in the soiling mixture for 60seconds, remove panels, and permit excess soiling mixture to drain. Allow
19、 to dry at room temperature for 24 hours. Weigh the panels to the nearest 0.1 milligram.TABLE 1 - Maximum Immersion Weight ChangeWeight ChangeTest Panel mg/cm2 per 24 hoursAMS 4037 Aluminum Alloy, anodized as in AMS 2470 0.3AMS 4041 Aluminum Alloy 0.3AMS 4049 Aluminum Alloy 0.3AMS 4376 Magnesium All
20、oy, dichromate treated as in AMS 2475 0.2TABLE 2 - Test SoilNominal PercentIngredients by WeightCarbon Black 5Texaco Transultex 240 or equivalent 15SAE 30 Oil, nondetergent type 5Solvent 75AMS 1537B SAE AMS 1537B- 4 -3.2.6.2 Soil Removal Test: Prepare a fresh solution of the cleaner at minimum recom
21、mended concentration using water conforming to ASTM D 1193. Place 900 mL of the diluted cleaning compound in each of four one liter tall form beakers. Maintain the temperature of the cleaning solution at the minimum recommended temperature. Immerse one each of the soiled panels in each of the beaker
22、s containing the cleaning compound by suspending them vertically from a suitable hanger mounted on a laboratory ring stand. Suspend the soiled panel in the center of the beaker so that one end of the panel is one inch (25 mm) from the bottom of the beaker. Place beaker containing the soiled panel on
23、 a magnetic stirring apparatus. Place a one inch (25 mm) stirring bar in the beaker. Operate the magnetic stirrer at 300 rpm for 20 minutes. After the 20 minutes cleaning cycle, withdraw the panels from the cleaning solution and immerse them in 900mL of ASTM D 1193 water contained in a one liter tal
24、l form beaker. Repeat the above procedure for the cleaning cycle except operate the magnetic stirrer for two minutes. Remove the panels from the water and dry them in a circulating-air oven maintained at 120 C1 (248 F 2) for 15 minutes. Remove the panels from the oven and cool them at standard condi
25、tions for 15 minutes. Weigh the panels to the nearest 0.1milligram. The percent soil removal shall be reported as an average value for four panels and calculated using Equation 1.(Eq. 1)3.2.7 Storage Stability: The product shall be tested in accordance with ASTMF1104. The stored cleaning compound sh
26、all give a cleaning ability value not less than 90% of that obtained with original compound when tested in accordance with 3.2.6.3.3 Quality: The cleaner, as received by purchaser, shall be homogeneous and free from foreign materials detrimental to usage of the cleaner.4. QUALITY ASSURANCE PROVISION
27、S: 4.1 Responsibility for Inspection: The vendor of the cleaner shall supply all samples for 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 co
28、nforms to the requirements of this specification.4.2 Classification of Tests: 4.2.1 Acceptance Tests: pH value (3.2.4) are acceptance tests and shall be performed on each lot.4.2.2 Preproduction Tests: All technical requirements are preproduction tests and shall be performed prior to or on the initi
29、al 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.% Soil Removed Wgt of soiled panelWgt of cleaned panelWgt of soiled panelWgt of unsoiled panel- 100=AMS 1537B SAE AMS 15
30、37B- 5 -4.3 Sampling and Testing: Shall be in accordance with ASTM D 1568; a lot shall be all cleaner produced in a single production run from the same batches of raw materials under the same fixed conditions and presented for vendors inspection at one time.4.4 Approval: 4.4.1 Sample cleaner shall b
31、e 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 essentially equivalent to those on the approved sample.4.4.2 Vendor shall use ingredients, manufacturing procedures, and methods of insp
32、ection 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 manufacturing procedures, vendor shall submit for reapproval a statement of the proposed changes in ingredients and/or processing and, when r
33、equested, sample cleaner. Production cleaner made by the revised procedure shall not be shipped prior to receipt of reapproval.4.5 Reports: The vendor of the cleaner shall furnish with each shipment a report showing the results of tests to determine conformance to the acceptance test requirements an
34、d stating that the cleaner conforms to the other technical requirements. This report shall include the purchase order number, lot number, AMS 1537B, manufacturers identification, and quantity.4.6 Resampling and Retesting: If any specimen used in the above tests fails to meet the specified requiremen
35、ts, disposition of the cleaner may be based on the results of testing three additional specimens for each original nonconforming specimen. Failure of any retest specimen to meet the specified requirements shall be cause for rejection of the cleaner represented. Results of all tests shall be reported
36、.5. PREPARATION FOR DELIVERY: 5.1 Packaging and Identification: 5.1.1 Cleaner shall be packaged in containers of a type and size acceptable to purchaser.5.1.2 A lot of cleaner may be packaged in small quantities and delivered under the basic lot approval provided lot identification is maintained.5.1
37、.3 Each container shall be legibly marked with not less than AMS 1537B, purchase order number, manufacturers identification, lot number, and quantity.AMS 1537B SAE AMS 1537B- 6 -5.1.4 Containers of cleaner shall be prepared for shipment in accordance with commercial practice and in compliance with a
38、pplicable rules and regulations pertaining to the handling, packaging, and transportation of the cleaner to ensure carrier acceptance and safe delivery. 6. ACKNOWLEDGMENT: A vendor shall mention this specification number and its revision letter in all quotations and when acknowledging purchase order
39、s.7. REJECTIONS: Cleaner not conforming to this specification, or to modifications authorized by purchaser, will be subject to rejection.8. NOTES: 8.1 The change bar ( l ) located in the left margin is for the convenience of the user in locating areas where technical revisions, not editorial changes
40、, have been made to the previous issue of this specification. An (R) symbol to the left of the document title indicates a complete revision of the specification, including technical revisions. Change bars and (R) are not used in original publications, nor in specifications that contain editorial cha
41、nges only.8.2 Dimensions in inch/pound units and the Celsius temperatures are primary; dimensions and properties in SI units and the Fahrenheit temperatures are shown as the approximate equivalents of the primary units and are presented only for information.8.3 Purchase documents should specify not less than the following:AMS 1537BType and size of containers desired Quantity of cleaner desired.8.4 Key Words: Soil removal, aluminum alloys, magnesium alloysPREPARED UNDER THE JURISDICTION OF AMS COMMITTEE “J“ (AMCM)
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