FORD FLTM EU BN 017-2-2001 DETERMINATION OF TENSILE STRENGTH OF TRIM MATERIALS AFTER AGEING.pdf

1、FORD LABORATORY TEST METHOD EU BN 017-02 Date Action DETERMINATION OF TENSILE STRENGTH OF TRIM MATERIALS AFTER AGEING Revisions Application 2001 0822 1994 02 28 This test method is used to determine the effects of ultraviolet radiation on tensile strength of trim materials after Fade-ometer and fiel

2、d exposure. Revised Editorial - no technical change A. Cockman Apparatus Required Fa de -0 me ter According to FLTM EU-BN 001-01 Tensile Test Machine Constant rate of transverse type e.g., Model E Tensometer. Source: Monsanto Ltd. Edison Road Dorcan, Swindon, Wilts, SN3 5HN, England Conditioning and

3、 Test Conditions All test values indicated herein are based on material conditioned in a controlled atmosphere of 23 +/- 2 “C and 50 +/- 5 % relative humidity for not less than 24 h prior to testing and tested under the same conditions unless otherwise specified. Procedure Method A - Fade-ometer Exp

4、osure Test (ASTM D 1682, Methods 2C and 2R) 1. Measure and cut two samples 120 x 280 mm, one WalesWarp direction and the other CoursesWeft direction. These are for exposure in the Fade-ometer. Additional specimens, at least two from each direction, shall be prepared according to ASTM D 1682, Method

5、2R or 2C, whichever is applicable, for determining original tensile strength values. 2. Clamp each end of the 120 x 280 mm samples to the revolving frame of thefade-Ometer ensuring that they are in a vertical position and that the surface after fitting is even, .e. not wrinkled. Copyright 02001, For

6、d Global Technologies, Inc FORD LABORATORY TEST METHOD EU BN 017-02 3. Expose the samples in the Fade-ometer for 200 standard fade hours under the operating conditions described in FLTM EU-BN 001-01. 4. After exposure, prepare two specimens from each of the aged samples in the same way as for the or

7、iginal tensile strength. Specimens shall be taken from the middle of the exposed area only. 5. Prior to performing the tensile tests (original and after exposure) ensure that the specimens have been conditioned as required in the material specification for 24 hours. 6. Measure the tensile strength o

8、f the original and the aged specimen as described by ASTM D 1682, Method 2R or 2C, whichever is applicable. 7. Record the average tensile strength for each direction separately in N/50 mm. Evaluation Calculate the percentage loss in tensile strength for each direction as follows: Loss in tensile str

9、ength % = Oriainal Tensile - Aaed Tensile x 100 Original Tensile Method B - Florida Field Exposure Test 1. Prepare 120 x 280 mm samples as outlined in para 1 and expose at South Florida Test Service, Miami, Florida, or equivalent exposure station for 21,000 Langleys under glass in accordance with AA

10、TCC 16 B-1964. 2. After exposure, prepare and test as outlined in para 4, 5, 6 and 7 of Method A. Evaluation According to Method A. Method C - Fade-ometer Exposure Test (ASTM D 1682, G) 1. Measure and cut two samples 150 x 280 mm with the shorter dimension parallel to the WarpWales and WefCourses di

11、rection. These are for exposure in the Fade-ometer. Prepare another two specimens (100 x 150 mm) from each direction according to ASTM D 1682, Method G. Delaminate the face fabric and determine the “Original Tensile Strength“ values. 2. Clamp each end of the 150 x 280 mm samples to the revolving fra

12、me of the Fade-ometer ensuring that they are in a vertical position and the surface is even after fitting. Expose the samples according to para 3, Method A. 3. After exposure cut two specimens 100 x 150 mm with the longer dimension parallel to the WarpWales and Weft-Courses direction from the expose

13、d area of each aged sample. Delaminate the face fabric and determine the “Tensile Strength after Ageing“ values. Page 2 of 3 Copynght02001, Ford Global Technologies, Inc FORD LABORATORY TEST METHOD EU BN 017-02 4. Condition the Tensile Test specimens (original and after exposure) according to para 5

14、, Method A. 5. Test the “Original Tensile Strength“ and “Tensile Strength After Ageing“ as described by ASTM D 1682, Method G, and record the average Tensile Strength for each direction separately in Newtons. Evaluation According to Method A. Method D - Florida Field Exposure Test 1. Prepare 150 x 2

15、80 mm samples as outlined in para 1, Methoc. C, and expose at South Florida Test Service, Miami, Florida or equivalent exposure station for 21,000 Langleys under glass in accordance with AATCC 16B-1964. 2. After exposure prepare and test as outlined in para 3, 4 and 5 of Method C. Evaluation According to Method A. Chemicals, materials, parts, and equipment referenced in this document must be used and handled properly. Each party is responsible for determining proper use and handling in its facilities. Page 3 of 3 Copynght02001, Ford Global Technologies, Inc