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 2009 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/AMS3755C AEROSPACE MATERIAL SPECIFICATION AMS3755 REV. C Issued 1983-07 Revised 2009-07 Super
5、seding AMS3755B Powder, Fumed Silicon Dioxide RATIONALE AMS3755C results from a Five Year Review and update of this specification. 1. SCOPE 1.1 Form This specification and its supplementary detail specifications cover silicon dioxide in the form of a white, amorphous powder. 1.2 Application This pow
6、der has been used typically as a thickening (thixotropic) agent for resin systems, 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 may involve the use of hazardous
7、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 all pe
8、rsonnel 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 specific document issue is specified. Wh
9、en the referenced document has been cancelled and no superseding document has been specified, the last published issue of that document shall apply. 2.1 ASTM Publications Available from ASTM International, 100 Barr Harbor Drive, P.O. Box C700, West Conshohocken, PA 19428-2959, Tel: 610-832-9585, www
10、.astm.org. ASTM D 1514 Carbon Black - Sieve Residue ASTM D 2773 Loss on Ignition of Electrical Grade Magnesium Oxide ASTM D 3037 Carbon Black - Surface Area by Nitrogen Adsorption ASTM D 4820 Carbon Black - Surface Area by Multipoint B.E.T. Adsorption Nitrogen ASTM E 300 Sampling Industrial Chemical
11、s Copyright SAE International Provided by IHS under license with SAENot for ResaleNo reproduction or networking permitted without license from IHS-,-,-SAE AMS3755C Page 2 of 4 3. TECHNICAL REQUIREMENTS 3.1 Material Shall be a fumed, white, amorphous silica. 3.2 Properties Powder shall conform to the
12、 requirements shown in Table 1; tests shall be performed on the powder supplied and in accordance with test methods specified in 4.5. TABLE 1 - PROPERTIES Properties Requirements Surface Area 175 - 225 m2/g Grit Content retained on No. 325 mesh (45 m) screen, maximum 0.02% pH, 4% Aqueous Dispersion
13、3.8 - 4.3 Loss on Ignition by weight, maximum, 1832 F (1000 C), Moisture Free 2.0% 3.3 Quality The powder, as received by purchaser, shall be uniform in quality and condition, smooth, as free from foreign material as commercially practicable, and free from imperfections detrimental to usage of the p
14、owder. 4. QUALITY ASSURANCE PROVISIONS 4.1 Responsibility for Inspection The vendor of powder 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
15、 to ensure that the powder conforms to specified requirements. 4.2 Classification of Tests 4.2.1 Acceptance Tests Surface area, grit content, pH (see Table 2), and quality (3.3) are acceptance tests and shall be performed on each lot. 4.2.2 Preproduction Tests All technical requirements are preprodu
16、ction tests and shall be performed prior to or on the initial shipment of powder to a purchaser, when a change in ingredients and/or processing requires reapproval as in 4.4.1, and when purchaser deems confirmatory testing to be required. 4.3 Sampling and Testing 4.3.1 For Acceptance Tests Each lot
17、of powder shall be sampled in accordance with ASTM E 300 at random to provide sufficient powder to perform all required tests. The number of determinations for each requirement shall be as specified in the applicable test procedure or, if not specified therein, not less than three. 4.3.1.1 A lot sha
18、ll be all powder produced in a continuous production run from the same batch of raw material under the same fixed conditions and presented for vendors inspection at one time. Copyright SAE International Provided by IHS under license with SAENot for ResaleNo reproduction or networking permitted witho
19、ut license from IHS-,-,-SAE AMS3755C Page 3 of 4 4.3.1.2 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 4.3.1 and the report of 4.6 shall state that such plan was used. 4.3.2 For Preproduction Te
20、sts As agreed upon by purchaser and vendor. 4.4 Approval 4.4.1 Sample powder shall be approved by purchaser before powder for production use is supplied, unless such approval is waived by purchaser. Results of tests on production powder shall be essentially equivalent to those on the approved sample
21、. Production powder made by a revised procedure shall not be shipped prior to receipt of reapproval. If necessary to make any change in ingredients, in type of equipment for processing, or in manufacturing procedures, manufacturer shall submit for reapproval a statement of the proposed changes in in
22、gredients and/or processing and, when requested, sample product. Production powder made by the revised procedure shall not be shipped prior to receipt of reapproval. 4.4.2 Manufacturer of the powder shall make no significant change in material, processes, or methods of inspection from those on which
23、 the approval was based, unless the change is approved by the cognizant engineering organization. A significant change is one which, in the judgment of the cognizant engineering organization, could affect the properties or performance of the product. 4.5 Test Methods Shall be shown in Table 2: TABLE
24、 2 - TEST METHODS Property Test Method Surface Area ASTM D 3037 or ASTM D 4820 Grit Content ASTM D 1514 pH, 4% Aqueous Dispersion 4.5.1 Loss on Ignition ASTM D 2773 4.5.1 pH, 4% Aqueous Dispersion 4.5.1.1 Weigh 4.000 grams 0.010 of powder into a 250-mL beaker and add 100 mL 10 of distilled water wit
25、h pH of not lower than 5.5. Boiling may be necessary to remove carbon dioxide to give a minimum pH of 5.5. (Do not adjust the pH of the water with caustic.) 4.5.1.2 Stir the mixture vigorously for not less than five minutes. When liquid agitation ceases, measure pH. 4.6 Reports The supplier of powde
26、r shall furnish with each shipment a report from the manufacturer showing the results of tests to determine conformance to the acceptance test requirements and stating that the powder conforms to the other technical requirements. This report shall include the purchase order number, lot number, AMS37
27、55C, manufacturers product designation, date of manufacture, and quantity. 4.7 Resampling and Retesting If any sample used in the above test fails to meet the specified requirements, disposition of the powder may be based on the results of testing three additional samples for each original nonconfor
28、ming sample. Failure of any retest sample to meet the specified requirements shall be cause for rejection of the powder represented. Results of all tests shall be reported. Copyright SAE International Provided by IHS under license with SAENot for ResaleNo reproduction or networking permitted without
29、 license from IHS-,-,-SAE AMS3755C Page 4 of 4 5. PREPARATION FOR DELIVERY 5.1 Packaging and Identification 5.1.1 A lot of powder may be packaged in smaller quantities and delivered under the basic lot approval provided lot identification is maintained. 5.1.2 The powder shall be packed in sealed bag
30、s. 5.1.3 Individual bags shall be packed in an exterior container capable of protecting the powder, during shipment and storage, against damage from exposure to weather or any other normal hazard. 5.1.4 Each bag and each exterior shipping container shall be legibly marked with not less than the foll
31、owing information in such a manner that the markings will not smear or be obliterated during normal handling or use: POWDER FUMED SILICON DIOXIDE AMS3755C/ * MANUFACTURERS IDENTIFICATION PURCHASE ORDER NUMBER DATE OF MANUFACTURE LOT NUMBER QUANTITY 5.1.5 Containers of powder shall be prepared for sh
32、ipment in accordance with commercial practice and in compliance with applicable rules and regulations pertaining to the handling, packaging, and transportation of the powder to ensure carrier acceptance and safe delivery. 6. ACKNOWLEDGMENT A vendor shall mention this specification number and its rev
33、ision letter in all quotations and when acknowledging purchase orders. 7. REJECTIONS Powder not conforming to this specification or to modifications authorized by purchaser, will be subject to rejection. 8. NOTES 8.1 A change bar (|) located in the left margin is for the convenience of the user in l
34、ocating areas where technical revisions, not editorial changes, have been made to the previous issue of this document. An (R) symbol to the left of the document title indicates a complete revision of the document, including technical revisions. Change bars and (R) are not used in original publicatio
35、ns, nor in documents that contain editorial changes only. 8.2 Dimensions and properties in inch/pound units and the Fahrenheit temperatures are primary; dimensions and properties in SI units and the Celsius temperatures are shown as the approximate equivalents of the primary units and are presented
36、only for information. 8.3 Purchase documents should specify not less than the following: AMS3755C Size of individual packages desired Quantity of powder desired Special packaging, if required. PREPARED BY AMS COMMITTEE “P” Copyright SAE International Provided by IHS under license with SAENot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
