1、 AEROSPACE MATERIAL SPECIFICATION Compound, Hot Carbon and Paint Remover Aircraft Turbine Engine Components SAE Technical Standards Board Rules provide that: “This report is published by SAE to advance the state of technical and engineering sciences. The use of this report is entirely voluntary, and
2、 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 it may be reaffirmed, revised, or cancelled. SAE invites your written com
3、ments and suggestions. Copyright 2004 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, photocopying, recording, or otherwise, without the prior written permission of
4、 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: custsvcsae.org SAE WEB ADDRESS: http:/www.sae.org AMS 1385AIssued APR 1985 Revised JUL 1993 Reaffirmed FEB 2004 Superseding AMS 1385 FOREWORD Changes in this Reaffirm a
5、re editorial/format only. 1. SCOPE: 1.1 Form: This specification covers a solvent-based compound in the form of a liquid. 1.2 Application: This compound has been used typically for removal of carbonaceous soils and paint from aircraft turbine engine parts by immersion in liquid at elevated temperatu
6、re, but usage is not limited to such applications. This compound should not be used on steel parts having hardness of 40 HRC or over. 1.3 Safety - Hazardous Materials: While the materials, methods, applications, and processes described or referenced in this specification may involve the use of hazar
7、dous 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 ensure the health and safety of a
8、ll personnel involved. 1.4 Precautions: Remover compound may contain chemicals which, if improperly used, could be hazardous to the health and safety of operators. Protective clothing including eye shields, suitable gloves, and apron should be worn when preparing and using remover. Tanks shall be pr
9、epared and operated under conditions of adequate fume extraction and with due regard to the safety recommendations of the manufacturer of the remover together with local workshop safety regulations. AMS 1385A SAE AMS 1385A - 2 - 2. APPLICABLE DOCUMENTS: The following publications form a part of this
10、 specification to the extent specified herein. The latest issue of SAE publications shall apply. The applicable issue of other publications shall be the issue in effect on the date of the purchase order. 2.1 SAE Publications: Available from SAE, 400 Commonwealth Drive, Warrendale, PA 15096-0001. AMS
11、 2825 Material Safety Data Sheets ARP1755 Effect of Cleaning Agents on Aircraft Engine Materials, Stock Loss Test Method 2.2 ASTM Publications: Available from ASTM, 100 Barr Harbor Drive, West Conshohocken, PA 19428-2959. ASTM D 1568 Sampling and Chemical Analysis of Alkylbenzene Sulfonates ASTM D 2
12、667 Biodegradability of Alkylbenzene Sulfonates ASTM F 519 Mechanical Hydrogen Embrittlement Testing of Plating Processes and Aircraft Maintenance Chemicals 2.3 U.S. Government Publications: Available from DODSSP, Subscription Services Desk, Building 4D, 700 Robbins Avenue, Philadelphia, PA 19111-50
13、94. MIL-STD-2073-1 DOD Materiel, Procedures for Development and Application of Packaging Requirements 3. TECHNICAL REQUIREMENTS: 3.1 Composition: Shall be optional with the manufacturer but, when prepared in accordance with manufacturers instructions shall form a liquid product, with no solid sedime
14、nt at room temperature, meeting the requirements of 3.2. 3.1.1 Compounds containing solvents, volatile at the operating temperature, shall be provided with an upper liquid seal serving to retard evaporation from the lower working layer. Solution make up, depth of seal if required, and solution contr
15、ol for the lower and seal phases shall be in accordance with manufacturers instructions and purchasers requirements. AMS 1385A SAE AMS 1385A - 3 - 3.2 Properties: Compound shall conform to the following requirements; tests shall be performed in accordance with specified test methods on the product s
16、upplied at the maximum concentration and at the maximum temperature recommended by the manufacturer; if a seal is specified, tests shall be performed on the lower liquid layer through the seal: 3.2.1 Stock Loss: Test panels of alloys or electrodeposits shall not incur stock loss exceeding 0.000025 i
17、nch (0.635 m) per surface and plasma deposited coatings shall not incur stock loss exceeding 0.0001 inch (2.5 m) when tested in accordance with ARP1755, Category 7. Where required in ARP1755, stock loss figures shall be reported. Vendor may indicate where remover is not recommended for particular al
18、loys or surface coatings. 3.2.2 Surface Attack: Test panels and bar stock used for the stock loss test of 3.2.1 shall exhibit no surface attack when examined at 50X magnification under good oblique surface lighting conditions. Slight surface discoloration is acceptable. 3.2.3 Biodegradability: Vendo
19、r shall supply evidence that surfactants used in the compound shall be at least 90% biodegradable, determined either in accordance with ASTM D 2667 where relevant to surfactant type or by alternative methods, appropriate to surfactant type, acceptable to purchaser. 3.2.3.1 Evidence of surfactant bio
20、degradability does not guarantee that the compound may be discharged in either concentrated or diluted form into public waterways or sewerage systems; manufacturers shall give advice on the means for disposal. 3.2.4 Storage Stability: Compound stored at 25 C 5 (77 F 9) for one year shall show no vis
21、ual evidence of deterioration and shall meet all other technical requirements. 3.2.5 Hydrogen Absorption: Compound shall be non-embrittling, determined in accordance with ASTM F 519, Type 1a, 1c, or 2a, except that unstressed test specimens shall be immersed in the remover compound at producers reco
22、mmended operating temperature for 4 hours 0.1, rinsed, and dried. The test specimens shall then be stressed according to type, at room temperature, and left for the required time. 3.2.6 Performance: The compound, prepared and used in accordance with manufacturers instructions, shall remove carbonace
23、ous soils and paint from parts. Compounds which meet all other technical requirements shall be tested for cleaning performance in an approved engine overhaul facility for not less than six months, during which time at least ten turbofan or turbojet engines, or equivalent, shall be processed with sat
24、isfactory results before approval for service use is granted by the applicable engine manufacturer. AMS 1385A SAE AMS 1385A - 4 - 3.3 Quality: The compound, as received by purchaser, shall be clear, homogeneous, and free from solid particles and separation and from foreign materials detrimental to u
25、sage of the compound. 4. QUALITY ASSURANCE PROVISIONS: 4.1 Responsibility for Inspection: The vendor of the compound shall supply all samples for vendors tests and shall be responsible for performing all required tests. Purchaser reserves the right to sample and to perform any confirmatory testing d
26、eemed necessary to ensure that the compound conforms to the requirements of this specification. 4.2 Classification of Tests: Tests for all technical requirements are preproduction tests and shall be performed prior to or on the initial shipment of compound to a purchaser, when a change in ingredient
27、s and/or processing requires reapproval as in 4.4.2, and when purchaser deems confirmatory testing to be required. 4.2.1 For direct U.S. Military procurement, substantiating test data and, when requested, preproduction test material shall be submitted to the cognizant agency as directed by the procu
28、ring activity, contracting officer, or request for procurement. 4.3 Sampling and Testing: Shall be in accordance with ASTM D 1568 or other method specified by purchaser. A lot shall be all compound produced in a single production run from the same batches of raw materials under the same fixed condit
29、ions and presented for vendors inspection at one time. A lot shall not exceed 6,000 gallons (22,712 L). 4.4 Approval: 4.4.1 Compound shall be approved by purchaser before compound for production use is supplied, unless such approval be waived by purchaser. Results of tests on production compound sha
30、ll be essentially equivalent to those on the approved sample compound. 4.4.1.1 A new or revised compound may be conditionally approved pending completion of the storage stability test of 3.2.4. Full approval will be granted following testing for the other technical requirements after completion of s
31、torage stability testing. AMS 1385A SAE AMS 1385A - 5 - 4.4.2 Vendor shall use ingredients, manufacturing procedures, and methods of inspection on production compound which are essentially the same as those used on the approved sample compound. If necessary to make any change in ingredients or in ma
32、nufacturing procedures, vendor shall submit for reapproval a statement of the proposed changes in ingredients and/or processing and, when requested, sample compound. Production compound made by the revised procedure shall not be shipped prior to receipt of reapproval. 4.5 Reports: 4.5.1 The vendor o
33、f the compound shall furnish with the initial shipment a report showing the results of tests to determine conformance to the technical requirements except that, for a new or revised compound, the results of the storage stability test may be omitted. This report shall include the purchase order numbe
34、r, lot number, AMS 1385A, manufacturers identification, and quantity. 4.5.1.1 A material safety data sheet conforming to AMS 2825, or equivalent, shall be supplied to each purchaser prior to or concurrent with the report of preproduction test results or, if preproduction testing be waived by purchas
35、er, concurrent with the first shipment of compound for production use. Each request for modification of compound formulation shall be accompanied by a revised data sheet for the proposed formulation. 4.5.2 The vendor of the compound shall furnish with each subsequent shipment a report stating that t
36、he compound is of the same composition and has the same properties as the approved sample compound. If results of the storage stability test were not included in the report on the initial shipment of compound, results of that test shall be included in the report on the first shipment following compl
37、etion of that test. This report shall include the purchase order number, lot number, AMS 1385A, manufacturers identification, and quantity. If compound from more than one lot is supplied in one shipment, a report shall be supplied for each lot of compound in the shipment. 4.5.3 A bulletin describing
38、 the compound and detailed instructions for its use shall be provided by the compound manufacturer. The bulletin shall also include at least mixing instructions, material compatibility, properties, control/analysis procedures, and safety practices including precautions for hazardous ingredients. 4.6
39、 Resampling and Retesting: If any sample used in the above tests fails to meet the specified requirements, disposition of the compound 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 requiremen
40、ts shall be cause for rejection of the compound represented. Results of all tests shall be reported. AMS 1385A SAE AMS 1385A - 6 - 5. PREPARATION FOR DELIVERY: 5.1 Packaging and Identification: 5.1.1 Compound shall be packaged in containers of a type and size agreed upon by purchaser and vendor. 5.1
41、.1.1 The compound may be packaged in small quantities and delivered under the basic lot approval provided lot identification is maintained. 5.1.2 Each container of compound shall be legibly marked with not less than AMS 1385A, purchase order number, lot number, manufacturers identification, and quan
42、tity. 5.1.3 Containers of compound shall be prepared for shipment in accordance with commercial practice and in compliance with applicable rules and regulations pertaining to the handling, packaging, and transportation of the compound to ensure carrier acceptance and safe delivery. 5.1.4 For direct
43、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 procurement. 6. ACKNOWLEDGMENT: A vendor shall mention this specification number and its revision letter in all quotations and when acknowledging purchase
44、 orders. 7. REJECTIONS: Compound 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 editoria
45、l changes, 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. 8.2 Dimensions in inch/pound units and the Celsius temperatures are primary; dimensions in SI units and the Fahrenheit temperatur
46、es are shown as the approximate equivalents of the primary units and are presented only for information. AMS 1385A SAE AMS 1385A - 7 - 8.3 For direct U.S. Military procurement, purchase documents should specify not less than the following: Title, number, and date of this specification Type and size of containers desired Quantity of compound desired Level A packaging, if required (See 5.1.4). 8.4 Compound meeting the requirements of this specification has been classified under Federal Supply Classification (FSC) 6850. PREPARED UNDER THE JURISDICTION OF AMS COMMITTEE “J“ (AMCM).
