1、_ 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 its applicability and suitability for any particular use, including any patent infringement arising there
2、from, 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 comments and suggestions. Copyright 2010 SAE International All rights reserved. No part of this publication m
3、ay 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 SAE. TO PLACE A DOCUMENT ORDER: Tel: 877-606-7323 (inside USA and Canada) Tel: +1 724-776-4970 (outside U
4、SA) Fax: 724-776-0790 Email: CustomerServicesae.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/AMS1454 AEROSPACE MATERIAL SPECIFICATION AMS1454 Issued 2010-12 Cleaning/Scale Removing Compo
5、und Aircraft Vacuum Toilet Systems RATIONALE This is the first AMS specification providing the requirements of a cleaner/scale remover compound that covers the prevention and formation of scale build-up on aircraft vacuum toilet systems. 1. SCOPE 1.1 Form This specification covers a cleaning/scale r
6、emoving compound in the form of a liquid concentrate or gel. 1.2 Application This cleaner/scale remover has been used typically as an additive in aircraft toilet systems to control the formation of scale and/or remove previous build-up of scale. 1.3 Safety - Hazardous Materials While the materials,
7、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 the safe and proper u
8、se of any hazardous materials and to take necessary 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 he
9、rein. The supplier may work to a subsequent revision 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
10、 SAE International, 400 Commonwealth Drive, Warrendale, PA 15096-0001, Tel: 877-606-7323 (inside USA and Canada) or 724-776-4970 (outside USA), www.sae.org. AMS2825 Material Safety Data Sheets AMS4049 Aluminum Alloy, Sheet and Plate, Alclad, 5.6Zn - 2.5Mg - 1.6Cu - 0.23Cr (Alclad 7075; -T6 Sheet, -T
11、651 Plate), Solution and Precipitation Heat Treated AMS-P-83310 Plastic Sheet, Polycarbonate, Transparent SAE AMS1454 Page 2 of 7 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 5
12、6 Flash Point by Tag Closed Tester ASTM D 471 Rubber Property - Effect of Liquids ASTM D 1193 Reagent Water ASTM D 1568 Sampling and Chemical Analysis of Alkylbenzene Sulfonates ASTM D 2667 Biodegradability of Alkylbenzene Sulfonates ASTM F 483 Total Immersion Corrosion Test for Aircraft Maintenance
13、 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 F 502 Effects of Cleaning and Chemical Maintenance Materials on Painted Aircraft Surfaces ASTM F 1110 Sandwich Corrosion Test 2.
14、3 APHA Publications Available from American Public Health Association, 800 I Street, NW, Washington, DC 20001, Tel: 202-777-2742, www.apha.org. Standard Methods for Examination of Water and Waste Water 3. TECHNICAL REQUIREMENTS 3.1 Material Shall consist of a biodegradable material with suitable add
15、itives, such as cleaner/scale removers necessary to provide a cleaner/scale remover meeting the requirements of 3.2. 3.1.1 The cleaner/scale remover shall dilute readily with water with minimum agitation. 3.2 Properties The cleaner/scale remover shall conform to the following requirements; tests sha
16、ll be performed in accordance with specified test methods. 3.2.1 Cleaner/Scale Removers as Received in Concentrate Form Shall be tested as the liquid concentrate, except that if the scale remover is received in the form of a gel, it shall be dissolved at the ratio of 1 part mover to 5 parts ASTM D 1
17、193, Type IV, water. If a residue (undissolved) is present, filter through a #40 filter paper prior to using for tests. However, such solids should be soluble at intended use dilution. SAE AMS1454 Page 3 of 7 3.2.1.1 Flash Point Shall be not lower than 93 C (199 F), determined in accordance with AST
18、M D 56. 3.2.1.2 Storage Stability The scale remover shall be stable after storage at room temperature for not less than 12 months. The scale remover shall, if supplied as a liquid concentrate, show no evidence of layering or separation and shall contain no lumps or show evidence of skin formation af
19、ter being subject to five freeze-thaw cycles as in 3.2.1.2.1. 3.2.1.2.1 Two 6 ounce (175 mL) samples of scale remover shall be placed in two 8 ounce (250 mL) clear glass bottles or in ziplock-type plastic bags, sealed, and exposed for 8 hours 0.25 to -23 C (-9 F), or lower if necessary to completely
20、 freeze the cleaner/scale remover samples. At the end of the freezing period, the samples shall be removed to a room temperature environment and allowed to thaw for 16 hours 0.5. This shall constitute one complete freeze-thaw cycle. The samples shall be subjected to five complete freeze-thaw cycles.
21、 At the end of the fifth cycle, the samples shall be examined for conformity to 3.2.1.2. 3.2.1.3 Environmental Properties Standards vary from area to area and, therefore, acceptance standards for the following environmental properties shall be as agreed upon by purchaser and vendor. 3.2.1.3.1 Biodeg
22、radability The deodorant shall show not less than 90% surfactant reduction to be adequately biodegradable, determined in accordance with ASTM D 2667. 3.2.1.3.2 Total Alkalinity or Acidity Shall be determined as ppm CaCO3 in accordance with APHA Method 201. 3.2.1.3.3 Total Inorganic Phosphate Shall b
23、e determined in accordance with APHA Method 223E, stannous chloride procedure. 3.2.1.3.4 Phenols Shall be determined by distilling 500 mL of the scale remover in accordance with APHA Method 222B, followed by chloroform extraction in accordance with APHA Method 222C. 3.2.1.3.5 Heavy Metals Chromium,
24、copper, cadmium, mercury, nickel, silver, and zinc contents shall be determined in accordance with APHA Method 211. 3.2.2 Scale Remover in Diluted Form Cleaner/Scale remover can be diluted as recommended by manufacturer. 3.2.3 Scale remover tested both as concentrate as defined in 3.2.1 and in conce
25、ntration as recommended by manufacturer as defined in 3.2.2. 3.2.3.1 Effect on Unpainted Surfaces There shall be no visible stains or residue on test panels, tested in accordance with ASTM F 485. SAE AMS1454 Page 4 of 7 3.2.3.2 Effect on Painted Surfaces The product shall neither decrease the hardne
26、ss of the paint film by more than two pencil hardness levels nor shall it produce any streaking, discoloration, or blistering of the paint film, determined in accordance with ASTM F 502. 3.2.3.3 Effect on Metallic Surfaces 3.2.3.3.1 Sandwich Corrosion Specimens of AMS4049 aluminum alloy, Titanium an
27、d AMS5501 or AMS 5595 stainless steel after testing in accordance with ASTM F 1110, shall show no evidence of corrosion worse than specimen panels tested in ASTM D 1193, Type IV, water. 3.2.3.3.2 Total Immersion Corrosion The scale remover shall neither cause corrosion of the panels nor cause a weig
28、ht change greater than 0.3 mg/cm2per 24 hours for any panel of AMS4049 aluminum alloy, Titanium, and stainless steel determined in accordance with ASTM F 483. 3.2.3.4 Temperature Stability The scale remover shall show no chemical or physical deterioration, including evidence of discoloration, layeri
29、ng, skinning, or other change denoting loss of stability, after being exposed for 120 hours 1 to 2 C 2 (36 F 4) and to 50 C 5 (122 F 9). 3.2.3.5 Solubility The scale remover shall be fully soluble in both hard and soft water and shall produce no detectable precipitate, determined in accordance with
30、3.2.3.5.1. 3.2.3.5.1 One set of two samples of the scale remover shall be diluted in accordance with 3.2.2; the other sample shall be diluted using 20 grain hard water solution made by dissolving 0.40 gram 0.005 of analytical reagent calcium acetate (Ca(C2H3O2)2H20) and 0.28 gram 0.005 of analytical
31、 reagent magnesium sulfate (MgSO47H20) in 1 liter of boiling ASTM D 1193, Type IV, water. After stirring vigorously for not less than 1 minute, both samples shall be allowed to stand undisturbed for 15 minutes 1, and examined for evidence of precipitation. 3.2.3.6 Effect on Rubber and Plastic Materi
32、als The scale remover shall neither cause swelling greater than 10%, determined in accordance with ASTM D 471, nor cause staining, discoloration, or evidence of degradation of rubber or plastic materials normally incorporated in aircraft lavatory systems. Materials listed on 3.2.3.6.1 shall be teste
33、d in accordance with 3.2.3.6.2. When specified by purchaser, tests to determine changes in tensile strength and elongation shall be performed in accordance with ASTM D 471 and the results obtained on exposed specimens shall be not lower than 75% of the tensile strength and elongation values determin
34、ed on unexposed specimens. 3.2.3.6.1 Test specimens shall be composed of ethylene propylene (EPM), fluorosilicone (FVMQ), methyl-phenyl-silicone (PMQ), chloroprene (CR), acrylonitrile butadiene (NBR), and fluorocarbon (FKM) rubbers; of acetal, polysulfone, nylon, and polycarbonate plastics; of epoxy
35、-glass fabric laminates; and of glass fabric. 3.2.3.6.2 Duplicate strips of each material listed in 3.2.3.6.1 shall be placed in test tubes containing the scale remover. Strips for determining volume change shall be totally immersed. Strips for determination of staining, discoloration, and evidence
36、of degradation shall be partially immersed so that the bottom-half is in the scale remover and the top-half is in air. The test tubes shall be capped and stored at ambient temperature for 30 days. After this exposure, the immersed and non-immersed area of each of the partially immersed specimens sha
37、ll be compared visually for evidence of staining, discoloration, or degradation and the results noted. Volume change shall be determined on the totally-immersed specimens and the values compared with those of untreated samples from the same source. Any change in volume shall be reported. SAE AMS1454
38、 Page 5 of 7 3.2.3.7 Effect on Polycarbonate Plastics Scale remover shall not craze, stain, or discolor AMS-P-83310 polycarbonate plastic, determined in accordance with the test procedures specified in ASTM F 484 on specimens stressed for 30 minutes 2 to an outer fiber stress of 2000 psi (13.8 MPa).
39、 3.2.3.8 Miscibility The scale remover shall be miscible in mixtures of water and either ethylene glycol or propylene glycol. A solution made up in accordance with 3.2.2, except that 50% of the diluent water shall be replaced with either ethylene glycol or propylene glycol shall show complete stabil
40、ity after storage for 7 days at 24 C + 3 (75 F 5). 3.3 Quality The product, as received by purchaser, shall be homogeneous, free from skins and lumps. 4. QUALITY ASSURANCE PROVISIONS 4.1 Responsibility for Inspection The vendor of the scale remover shall supply all samples for vendors tests and shal
41、l 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 scale remover conforms to specified requirements. 4.2 Classification of Tests 4.2.1 Acceptance Test Flash point (3.2.1.1) of
42、the scale remover concentrated form 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 initial shipment of scale remover to a purchaser, when a change in ingredients and/or processing requires reapproval as
43、 in 4.4.2, and when purchaser deems confirmatory testing to be required. 4.2.2.1 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 procuring activity, contracting officer, or r
44、equest for procurement. 4.3 Sampling and Testing Shall be in accordance with ASTM D 1568. 4.4 Approval 4.4.1 Sample scale remover shall be approved by purchaser before scale remover production use is supplied, unless such approval be waived by purchaser. Results of tests on production scale remover
45、shall be essentially equivalent to those on the approved sample. 4.4.2 Vendor shall use ingredients, manufacturing procedures, and methods of inspection on production scale remover which are essentially the same as those used on the approved sample. If necessary to make any change in ingredients or
46、in manufacturing procedures, vendor shall submit for reapproval a statement of the proposed changes in ingredients and/or processing, and, when requested by purchaser, sample deodorant. Production scale remover made by the revised procedure shall not be shipped prior to receipt of reapproval. SAE AM
47、S1454 Page 6 of 7 4.5 Reports The vendor of scale remover shall furnish with each shipment a report showing the results of tests to determine conformance to the acceptance test requirements and stating that the scale remover conforms to the other technical requirements. This report shall include the
48、 purchase order number, lot number, AMS1454, 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 test results, or, if preproduction testing b
49、e waived by purchaser, concurrent with the first shipment of scale remover for production use. Each request for modification of scale remover formulation shall be accompanied by a revised data sheet for the proposed formulation. 4.6 Resampling and Retesting If any specimen used in the above tests fails to meet specified requirements, disposition of the scale remover may be based on the results of testing th
