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 revised, reaffirmed, stabilized, or cancelled. SAE invites your written comments and suggestions. Copyright 2014 SAE International All rights reserved. No part of this p
3、ublication 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 SAE. TO PLACE A DOCUMENT ORDER: Tel: 877-606-7323 (inside USA and Canada) Tel: +1 724-776-497
4、0 (outside USA) 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/J322_201406 SURFACE VEHICLE RECOMMENDED PRACTICE J322 JUN2014 Issued 1967-12Reaff
5、irmed 2014-06 Superseding J322 JUL2009 Nonmetallic Trim MaterialsTest Method for Determining the Staining Resistance to Hydrogen Sulfide Gas RATIONALE J322 has been reaffirmed to comply with the SAE five-year review policy. 1. SCOPE This SAE Recommended Practice is designed to reveal discoloration w
6、hich may occur when nonmetallic materials used for trimming automobiles are exposed for a limited time to an atmosphere containing hydrogen sulfide. NOTE 1: CAUTIONHydrogen sulfide gas is extremely hazardous. Use of this substance may be fatal if proper precautions are not taken. This test method do
7、es not purport to address all of the safety problems associated with its use. It is the responsibility of the user of this document to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. NOTE 2: A fume hood and adequate ventilatio
8、n should be provided at all times during testing. 2. REFERENCES 2.1 Related Publications The following publications are provided for information purposes only and are not a required part of this document. 2.1.1 AATCC Publication Available from American Association of Textile Chemists and Colorists,
9、P.O. Box 12215, Research Triangle Park, NC 27709-2215, Tel: 919-549-8141, www.aatcc.org. AATCC Evaluation Procedure 1 Gray Scale for Color Change 2.1.2 Global Engineering Document Available from Global Engineering, 15 Inverness Way East, Englewood CO 80112, Email: . ISO 105-A02 TextilesTests for Col
10、our FastnessPart A02: Grey Scale for Assessing Change in Colour SAE INTERNATIONAL J322 Reaffirmed JUN2014 Page 2 of 3 3. MATERIALS AND EQUIPMENT REQUIRED 3.1 Hydrogen sulfide cylinder with valve. 3.2 Two test tubes approximately 38 x 200 mm. 3.3 Two two-hole stoppers to fit the test tubes. 3.4 Misce
11、llaneous glass tubing, cotton, plastic tubing, and pinch clamp as in Figure 1. 4. TEST SPECIMEN 4.1 Cut a 25 2 mm x 50 2 mm test specimen. (The test specimen must be of such a size and shape to allow for free passage of gas on all sides.) 5. PROCEDURE 5.1 Assemble apparatus per Figure 1 and place un
12、der fume hood. 5.2 Insert test specimen into tube B. 5.3 Add 50 2 mL of tap water to tube A. Insert cotton packing per Figure 1. Stopper tubes A and B. FIGURE 1 - STAINING TEST DIAGRAM 5.4 Remove pinch clamp from exhaust hose of tube B and cautiously open the valve on the hydrogen sulfide cylinder.
13、Adjust the valve so hydrogen sulfide gas bubbles through the system at a uniform and controlled rate, with a steady flow of bubbles at 5 bubbles/second. 5.5 Allow the system to purge for 1.5 min 5 sec., then close the valve and immediately replace the pinch clamp on the exhaust hose of tube B. 5.6 A
14、llow the system to remain in the closed position for an additional 2 min 5 sec. SAE INTERNATIONAL J322 Reaffirmed JUN2014 Page 3 of 3 5.7 Remove the stopper of tube B and take out the test specimen. 5.8 Compare the test specimen with an unexposed specimen of the same material and report any discolor
15、ation which has occurred using as a reference staining grey scale. (Grey Scale for Color Change, AATTC Evaluation Procedure 1, similar to ISO 105-A02.) 6. NOTES 6.1 Marginal Indicia A change bar (I) located in the left margin is for the convenience of the user in locating areas where technical revis
16、ions, 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 publications, nor in documents that contain editorial changes only. PREPARED BY THE SAE TEXTILES AND FLEXIBLE PLASTICS COMMITTEE
