GMKOREA EDS-T-7682-2006 TEST METHOD FOR DETERMINING THE PROPORTIONS OF VEGETABLE FIBERS AND RUBBER IN UPHOLSTERY MATERIALS (VERSION 2).pdf
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1、GM DAEWOO Auto & Technology EDS Engineering, GM DAEWOO Auto & Technology Standards TEST METHOD FOR DETERMINING THE PROPORTIONS OF VEGETABLE FIBERS AND RUBBER IN UPHOLSTERY MATERIALS EDS-T-7682 ISSUED DATE: 1995. 11. 10 REVISED DATE: 2006. 06. 19 VERSION: 2 EDS-T-7682TEST METHOD FOR DETERMINING THE P
2、ROPORTIONS OF VEGETABLE FIBERS AND RUBBER IN UPHOLSTERY MATERIALS PAGE: 1/3 ISSUED DATE: 1995. 11. 10 REVISED DATE: 2006. 06. 19 VERSION: 2 GM DAEWOO Auto & Technology 1. PURPOSE This test standard shall be used to determine the relative proportions of vegetable fibers and rubber in rubberized uphol
3、stery materials. 2. DEFINITION The proportions of vegetable fibers and rubber: Determined by this test method shall be defined as the relative quantities of each constituent present in the test material expressed as a percentage by weight. 3. TEST PIECES AND NUMBER OF TEST PIECES 3.1. From the avail
4、able material, test pieces weighing approx 3g and covering the entire thickness of the material shall be taken. For formed parts, where the relevant drawing stipulates a “test area“, the test pieces shall be taken from this area. 3.2. For initial sample approval and arbitration purposes at least two
5、 test pieces, and for routine quality control at least one test piece shall be tested. 4. CONDITIONING For initial sample approval, arbitration purposes and for routine quality control conditioning shall be carried out for at least 2hours at a temperature of +1202.5K. The test piece shall be removed
6、 from the oven and allowed to cool to +235K in a closed desiccator for at least 1 hour. 5. APPARATUS 5.1. Heating oven, adjustable, capable of maintaining +1202.5K. 5.2. Cutting dies or shears for preparation of the test pieces. 5.3. Conical flask with condenser attachment, min capacity 300 ml. 5.4.
7、 Balance with accuracy of 0.01g. 5.5. Heating plate or Bunsen burner. 5.6. Suitable thermometer for the required temperatures. 5.7. Desiccator with silica gel. 5.8. Hood EDS-T-7682TEST METHOD FOR DETERMINING THE PROPORTIONS OF VEGETABLE FIBERS AND RUBBER IN UPHOLSTERY MATERIALS PAGE: 2/3 ISSUED DATE
8、: 1995. 11. 10 REVISED DATE: 2006. 06. 19 VERSION: 2 GM DAEWOO Auto & Technology 6. TEST MEDIA 1,2 dichlorobenzene (C6H4Cl2) for extraction analysis. 7. PROCEDURE The test shall be performed immediately after conditioning at a temperature of +235K. 7.1. The test piece shall be accurately weighed to
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