1、 SURFACE VEHICLE RECOMMENDED PRACTICE Protocol To Verify Performance of New Xenon Arc Test Apparatus 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 app
2、licability 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 comments and
3、 suggestions. Copyright 2003 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 SAE. TO
4、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 Issued J2413 ISSUED DEC2003 1. Scope 1.1 This 2003-12Recommended Practice is for use by contractual parties to verify new xenon
5、 arc test apparatus ability to perform SAE J1885, J1960, J2412, J2527, or other as specified. 1.2 This Protocol defines the process for analysis of performance capabilities of candidate xenon arc test apparatus for comparison to current xenon arc test apparatus being utilized by the industry. This w
6、ill require documentation of the candidate apparatus to: a. Produce the exposure environments as specified in the test method. b. Produce the required degradation in the standard reference material(s) in the specified time frame. c. Produce satisfactory repeatable and reproducible exposure results.
7、d. Produce satisfactory uniform results throughout the specimen exposure region of the test chamber. e. Produce similar degradation in the benchmark test specimens, as agreed upon by contractual parties. Standard Reference Materials (SRMs) performance data and any specified benchmark materials are u
8、sed as a basis for comparison of various test apparatus. The type of failure and mode of failure should be the same for the comparison. 2. References 2.1 Applicable Documents The following publications form a part of this specification to the extent specified herein. Unless otherwise specified, the
9、latest issue of SAE publications shall apply. Copyright SAE International Provided by IHS under license with SAENot for ResaleNo reproduction or networking permitted without license from IHS-,-,-SAE J2413 Issued DEC2003 - 2 - 2.1.1 SAE PUBLICATIONS Available from SAE, 400 Commonwealth Drive, Warrend
10、ale, PA 15096-0001. SAE J1885Accelerated Exposure of Automotive Interior Trim Components Using a Controlled Irradiance Water Cooled Xenon Arc Apparatus SAE J1960Accelerated Exposure of Automotive Exterior Materials Using a Controlled Irradiance Water Cooled Xenon Arc Apparatus SAE J2412Accelerated E
11、xposure Of Automotive Interior Trim Components Using A Controlled Irradiance Xenon-Arc Apparatus SAE J2527Accelerated Exposure of Automotive Exterior Materials Using A Controlled Irradiance Xenon-Arc Apparatus 2.2 ASTM Publications Available from ASTM, 100 Barr Harbor Drive, West Conshohocken, PA 19
12、428-2959. ASTM G 113Standard Terminology Relating to Natural and Artificial Weathering for non-Metallic Materials 3. Definitions 3.1 Definitions applicable to this standard can be found in ASTM G 113. 4. Verification of Test Apparatus Conformance 4.1 It is the responsibility of the test apparatus ma
13、nufacturer to provide the necessary data to demonstrate compliance of each model apparatus with this specification. A recommended form for Verification of Test Apparatus Conformance is included at the end of this document. The instrument must have the means to automatically control irradiance, Black
14、 Panel temperature, chamber temperature and relative humidity. 4.2 The manufacturer shall submit data showing that the test apparatus is capable of producing a test cycle with the test conditions and the target values listed for the test segments and test tolerances specified in the referenced test
15、method. For example, see Table 1 for the test conditions of SAE J1960 and J2527. Copyright SAE International Provided by IHS under license with SAENot for ResaleNo reproduction or networking permitted without license from IHS-,-,-SAE J2413 Issued DEC2003 - 3 - TABLE 1TEST CONDITIONS Segment# Irradia
16、nce Level Time Duration Or kJ/m Black Panel Chamber Air Temp. Relative Humidity Front Spray Back Spray Segment 1 None 60 minutes 38C 38C 95% yes yes Segment 2 0.55W/m240 minutes or 1.32 kJ/m 70C 47C 50% no no Segment 3 0.55W/m 20 minutes or 0.66kJ/m 70C 47C Not applicable yes no Segment 4 0.55W/m 60
17、 minutes or 1.98 kJ/m 70C 47C 50% no no 4.3 The manufacturer shall submit data showing that the test apparatus is capable of producing the appropriate spectral power distribution, as required in the test method. 5. Performance of Standard Reference Material(s) 5.1 The manufacturer shall submit data
18、showing that the test apparatus is capable of producing the required degradation in the standard reference material(s) in the specified time frame, as specified by this test method. 6. Repeatability and Reproducibility 6.1 The manufacturer shall submit data showing that the test apparatus is capable
19、 of producing repeatable and reproducible exposure results. 6.1.1 Repeatability shall be documented by repeating the exposure of the standard reference material in three separate exposure runs in the same piece of test apparatus. 6.1.2 Reproducibility shall be documented by repeating the exposure of
20、 the standard reference material in three separate exposure runs - one each, in three different test apparatus (same model but different serial numbers). 7. Exposure Uniformity 7.1 The test apparatus manufacturer shall submit data documenting the variability within the testing area. The data will in
21、clude mapping the testing area with the current lot of SRM or other material agreed upon by contractual parties. 7.2 Uniformity shall be demonstrated by exposing replicate specimens of a standard reference material at various locations within the specimen mounting region of the chamber. Copyright SA
22、E International Provided by IHS under license with SAENot for ResaleNo reproduction or networking permitted without license from IHS-,-,-SAE J2413 Issued DEC2003 - 4 - 7.2.1 FOR EXAMPLE: a. In multi-tier circular exposure types, place four (4) sets of control materials per tier, each located 90 degr
23、ees circumferentially. (See Figure 1 to illustrate one set) FIGURE 1MULTI-TIER b. In planar exposure types, place samples on top, middle and bottom, ensuring coverage in each corner. (See Figure 2 to illustrate one set) FIGURE 2PLANAR EXPOSURE Copyright SAE International Provided by IHS under licens
24、e with SAENot for ResaleNo reproduction or networking permitted without license from IHS-,-,-SAE J2413 Issued DEC2003 - 5 - c. In other geometries, the manufactures should provide illustration depicting specimen placement. 7.2.2 The SRMs are to be measured at each test interval (for example, 31.6 kJ
25、/m2for SAE J1960) for each location. Weekends and holidays are optional. The data is to be plotted to show the variation with time within the testing area. 8. Performance of Benchmark Materials 8.1 If contractual parties require additional information on the testing capabilities of the candidate app
26、aratus, other materials with established weathering characteristics can be run to compare the candidate equipment to current equipment. 8.1.1 Benchmark specimens shall be agreed upon by contractual parties. 8.1.2 Weathering modes and weathering evaluation methodology shall be agreed upon by contract
27、ual parties. 8.2 Expose the benchmark specimens in three xenon arc test apparatus agreed upon by contractual parties or that are recognized as producing acceptable results for the accelerated xenon test being evaluated. Place a replicate set of specimens in the candidate tester. Expose for the appro
28、priate duration and evaluate the results to determine correlation. PREPARED BY THE SAE TEXTILES AND FLEXIBLE PLASTICS COMMITTEE Copyright SAE International Provided by IHS under license with SAENot for ResaleNo reproduction or networking permitted without license from IHS-,-,-SAE J2413 Issued DEC200
29、3 - 6 - APPENDIX A FIGURE A1RECOMMENDED FORM FOR VERIFICATION OF TEST APPARATUS CONFORMANCE Copyright SAE International Provided by IHS under license with SAENot for ResaleNo reproduction or networking permitted without license from IHS-,-,-SAE J2413 Issued DEC2003 - 7 - FIGURE A1RECOMMENDED FORM FO
30、R VERIFICATION OF TEST APPARATUS CONFORMANCE (CONTINUED) Copyright SAE International Provided by IHS under license with SAENot for ResaleNo reproduction or networking permitted without license from IHS-,-,-SAE J2413 Issued DEC2003 Rationale Not applicable. Relationship of SAE Standard to ISO Standar
31、d Not applicable Application This Recommended Practice is for use by contractual parties to verify new xenon arc test apparatus ability to perform SAE J1885, J1960, J2412, J2527, or other as specified. Reference Section SAE J1885Accelerated Exposure of Automotive Interior Trim Components Using a Con
32、trolled Irradiance Water Cooled Xenon Arc Apparatus SAE J1960Accelerated Exposure of Automotive Exterior Materials Using a Controlled Irradiance Water Cooled Xenon Arc Apparatus SAE J2412Accelerated Exposure Of Automotive Interior Trim Components Using A Controlled Irradiance Xenon-Arc Apparatus SAE
33、 J2527Accelerated Exposure of Automotive Exterior Materials Using A Controlled Irradiance Xenon-Arc Apparatus ASTM G 113Standard Terminology Relating to Natural And Artificial Weathering for non-Metallic Materials Developed by the SAE Textiles and Flexible Plastics Committee Copyright SAE International Provided by IHS under license with SAENot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
