1、AEROSPACEMATERIAL1 = jA,M;pI;SPECIFICATION IssuedIRevised 1 JUL 1991Superseding AMS 1384ACID, INHIBITED PHOSPHORICAircraft Turbine Engine ComponentsRoom Temperature Application1. SCOPE:1.1 Form:This specification covers an inhibited phosphoric acid in the form of aliquid concentrate or a water solub
2、le powder for dilution with water.1.2 Application:Primarily for derusting of aircraft turbine engine ferrous components andremoval of heat scale and other contamination from the surface of nickelalloys by immersion at room temperature. Should not be used on steel partshaving hardness of 40 HRC or ov
3、er.1.3 Precautions:Inhibited acid may contain chemicals which, if improperly used, could behazardous to the health and safety of operators. Protective clothingincluding eye shields, suitable gloves, and apron should be worn whenpreparing and using acid. Tanks shall be prepared and operated undercond
4、itions of adequate fume extraction and with due regard to the safetyrecommendations of the manufacturer of the acid mixture together with localworkshop safety regulations.SAE Technical Standards Board Rules provide that: “This report is published by SAE to advance the state of technical and engineer
5、ing 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 it may be
6、reaffirmed, revised, or cancelled. SAE invites your written comments and suggestions. Copyright 2007 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, r
7、ecording, 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 RATIONALE This document has been reaffirmed to
8、comply with the SAE 5-year Review policy. Reaffirmed FEB 2007I AMS 1384A SAE AMS 1384A I1.4 Safety - Hazardous Materials:While the materials, methods, applications, and processes described orreferenced in this specification may involve the use of hazardous materials,this specification does not addre
9、ss the hazards which may be involved insuch use. It is the sole responsibility of the user to ensure familiaritywith the safe and proper use of any hazardous materials and to takenecessary precautionary measures to ensure the health and safety of allpersonnel involved.2. APPLICABLE DOCUMENTS:The fol
10、lowing publications form a part of this specification to the extentspecified herein. The latest issue of SAE publications shall apply. Theapplicable issue of other publications shall be the issue in effect on thedate of the purchase order.2.1 SAE Publications:Available from SAE, 400 Commonwealth Dri
11、ve, Warrendale, PA 15096-0001.AMS 2825 Material Safety Data SheetsARP1755 Effect of Cleaning Agents on Aircraft Engine Materials, StockLoss Test Method2.2 ASTM Publications:Available from ASTM, 1916 Race Street, Philadelphia, PA 19103-1187.ASTM D 1568 Sampling and Chemical Analysis of Alkylbenzene S
12、ulfonatesASTM D 2667 Biodegradability of Alkylbenzene Sulfonates2.3 U.S. Government Publications:Available from Standardization Documents Order Desk, Building 4D, 700Robbins Avenue, Philadelphia, PA 19111-5094.MIL-STD-2073-1 - DOD Materiel, Procedures for Development and Application ofPackaging Requ
13、irements3. TECHNICAL REQUIREMENTS:3.1 Composition:Shall be optional with the manufacturer but, when prepared in accordancewith manufacturers instructions, shall form a liquid product, with no solidsediment at room temperature, meeting the requirements of 3.2. Solutionmake up and control shall be in
14、accordance with manufacturers instructionsand purchasers requirements.-2-AMS 1384A SAE AMS 1384A3.2 Properties:The product shall conform to the following requirements; tests shall beperformed in accordance with specified test methods on the product suppliedat the maximum concentration and temperatur
15、e recommended by the manufacturer.3.2.13.2.23.2.3Stock Loss: Test panels of alloys or electrodeposits shalstock loss exceeding 0.000025 inch (0.635 Pm) per surfacedeposited coatings shall not incur stock loss exceeding 0.(2.5 Pm) when tested in accordance with ARP1755, Categoryrequired in ARP1755, s
16、tock loss figures shall be reported.indicate where the product is not recommended for particulsurface coatings.1 not incurand plasma0001 inch1. WhereVendor mayar alloys orSurface Attack: Test panels and bars used for the stock loss test of3.2.1 shall neither exhibit pitting corrosion nor show visual
17、 evidence ofsurface cracks, when examined at 50X magnification under good obliquesurface lighting conditions.Biodegradability: Vendor shall supply evidence that surfactants used inthe product shall be at least 90% biodegradable, determined either inaccordance with ASTM D 2667 where relevant to surfa
18、ctant type or byalternative methods, appropriate to surfactant type, acceptable topurchaser.3.2.3.1 Evidence of surfactant biodegradability does not guarantee that the acidmay be discharged in either concentrated or diluted form into publicwaterways or sewerage systems; manufacturers shall give advi
19、ce on themeans for disposal.3.2.4 Storage Stability: Acid, stored at 25C + 5 (77F + 9) for one year shallshow no visual evidence of deterioration and shall meet all othertechnical requirements.3.2.5 Performance: Acid, prepared and used in accordance with manufacturersinstructions shall, at room temp
20、erature, remove rust from ferrous partsand remove heat scale from nickel alloys. Acid, which meets all othertechnical requirements, shall be tested for cleaning performance in anapproved engine overhaul facility for not less than six months, duringwhich time at least ten turbofan or turbojet engines
21、, or equivalent, shallbe processed with satisfactory results before approval for service use isgranted by the applicable engine manufacturer.3.3 Quality:Acid, as received by purchaser, if a liquid, shall be clear, homogeneous,and free from solid particles and separation and from foreign materialsdet
22、rimental to usage of the acid and, if a powder form, shall be freeflowing, free from lumping caused by moisture absorption, and free fromforeign material detrimental to its usage.-3-AMS 1384A SAE AMS 1384A4. QUALITY ASSURANCE PROVISIONS:4.1 Responsibility for Inspection:(R)The vendor of the product
23、shall supply all samples for vendors tests andshall be responsible for performing all required tests. Purchaser reservesthe right to sample and to perform any confirmatory testing deemed necessaryto ensure that the product conforms to the requirements of thisspecification.4.2 Classification of Tests
24、:Tests for all technical requirements are preproduction tests and shall beperformed prior to or on the initial shipment of acid to a purchaser, when achange in ingredients and/or processing requires reapproval as in 4.4.2, andwhen purchaser deems confirmatory testing to be required.4.2.1 For direct
25、U.S. Military procurement, substantiating test data and, whenrequested, preproduction test material shall be submitted to the cognizantagency as directed by the procuring activity, contracting officer, orrequest for procurement.4.3 Sampling and Testing:Shall be in accordance with ASTM D1568. A lot s
26、hall be all acid produced ina single production run from the same batches of raw materials under thesame fixed conditions and presented for vendors inspection at one time. Aninspection lot shall not exceed 6,000 gallons (22,712 L) if a liquid or10,000 pounds (4536 kg) if a powder. Acid may be packag
27、ed in smallerquantities and delivered under the basic lot approval provided lotidentification is maintained.4.4 Approval:4.4.1 Acid shall be approved by purchaser before acid for production use issupplied, unless such approval be waived by purchaser. Results of testson production acid shall be essen
28、tially equivalent to those on theapproved sample acid.4.4.1.1 A new or revised product may be conditionally approved pendingcompletion of the storage stability test of 3.2.4. Full approval willbe granted following testing for the other technical requirements aftercompletion of storage stability test
29、ing.4.4.2 Vendor shall use ingredients, manufacturing procedures, and methods ofinspection on production acid which are essentially the same as those usedon the approved sample acid. If necessary to make any change iningredients or in manufacturing procedures, vendor shall submit forreapproval a sta
30、tement of the proposed changes in ingredients and/orprocessing and, when requested, sample acid. Production acid made by therevised procedure shall not be shipped prior to receipt of reapproval.-4-I AMS 1384A SAE AMS 1384A I4.5 Reports:4.5.1 The vendor of acid shall furnish with the initial shipment
31、 a report(R) showing the results of tests to determine conformance to the technicalrequirements. This report shall include the purchase order number, lotnumber, AMS 1384A, manufacturers identification, and quantity.4.5.2 A material safety data sheet conforming to AMS 2825, or equivalent, shallbe sup
32、plied to each purchaser prior to or concurrent with the report ofpreproduction test results or, if preproduction testing be waived bypurchaser, concurrent with the first shipment of acid for production use.Each request for modification of acid formulation shall be accompanied bya revised data sheet
33、for the proposed formulation.4.5.3 The vendor of acid shall furnish with each subsequent shipment a reportstating that the acid is of the same composition and has the sameproperties as the approved sample acid. If results of the storagestability test were not Included in the report on the Initial sh
34、ipment ofacid, results of that test shall be included in the report on the firstshipment following completion of that test. This report shall include thepurchase order number, lot number, AMS 1384A, manufacturersidentification, and quantity. If acid from more than one lot is suppliedin one shipment,
35、 a report shall be supplied for each lot of acid in theshipment.4.5.4 A bulletin describing the acid and detailed instructions for its use shallbe provided by the acid manufacturer. The bulletin shall also include notless than mixing instructions, material compatibility, properties,control/analysis
36、procedures, and safety practices including precautionsfor hazardous ingredients.4.6 Resampling and Retesting:CR)If any sample used in the above tests fails to meet the specifiedrequirements, disposition of the acid may be based on the results of testingthree additional samples for each original nonc
37、onforming sample. Failure ofany retest sample to meet the specified requirements shall be cause forrejection of the acid represented. Results of all tests shall be reported.5. PREPARATION FOR DELIVERY:5.1 Packaging and Identification:5.1.1 Acid shall be packaged in containers of a type and size agre
38、ed upon bypurchaser and vendor.5.1.2 Each container of acid shall be legibly marked with not less thanAMS 1384A, purchase order number, lot number, manufacturersidentification, and quantity.-5-I AMS 1384A SAE AMS 1384A I5.1.3 Containers of acid shall be prepared for shipment in accordance withCR com
39、mercial practice and in compliance with applicable rules andregulations pertaining to the handling, packaging, and transportation ofthe acid to ensure carrier acceptance and safe delivery.5.1.4 For direct U.S. Military procurement, packaging shall be in accordanceCR with MIL-STD-2073-1, Commercial L
40、evel, unless Level A is specified in therequest for procurement.6. ACKNOWLEDGMENT:A vendor shall mention this specification number and its revision letter inall quotations and when acknowledging purchase orders.7. REJECTIONS:Acid not conforming to this specification, or to modifications authorized b
41、ypurchaser, will be subject to rejection.8. NOTES:8.1 Marginal Indicia:The (R) symbol is used to indicate technical changes from the previous issueof this specification.8.2 Dimensions in inch/pound units and the Celsius temperatures are primary;dimensions in SI units and the Fahrenheit temperatures
42、are shown as theapproximate equivalents of the primary units and are presented only forinformation.8.3 For direct U.S. Military procurement, purchase documents should specify notless than the following:Title, number, and date of this specificationType of acid (liquid or powder) desiredType and size of containers desiredQuantity of acid desiredLevel A packaging, if required (See 5.1.4).8.4 Acid meeting the requirements of this specification has been classifiedunder Federal Supply Classification (FSC) 6850.PREPARED UNDER THE JURISDICTION OF AMS COMMITTEE “3“ (AMCM).-6-
