1、 FORD LABORATORY TEST METHOD AN 102-01 Date Action Revisions 2001 01 30 Revised Editorial no technical change A. Cockman 2000 04 14 Editorial no technical change A. Cockman 1990 05 10 Printed copies are uncontrolled Page 1 of 4 Copyright 2001, Ford Global Technologies, Inc. RESISTANCE OF PLASTIC MAT
2、ERIALS TO HYDROGEN SULFIDE STAINING Application This method is used to determine the resistance of vinyl-coated fabrics, plastic sheeting and other plastic components to staining by hydrogen sulfide. Apparatus Required Hydrogen Sulfide Containing Cylinder (With stainless steel needle valve to give r
3、equired flow rate) Lecture/1 litre size gas cylinder. Available from: Source: Fisher Scientific Air Products Ltd. 34401 Industrial Road Special Gases Division Livonia, MI 48150 Cadland Road, Hardly, Hythe, U.S.A. Southhampton, U.K. Messer Griesheim GmbH, Industriegase Luxemburgerstrasse 379 D5000 Ko
4、ln - Hermuleim, Germany Caution: Hydrogen sulfide is poisonous, flammable and corrosive. Refer to Industrial Hygiene for health and safety comments and Fire/Security for fire prevention precautions. Note: In higher concentrations hydrogen sulfide may not be able to be smelled because of possible par
5、alyzation of the olefactory nerves. Stopwatch AATCC Chart For measuring transference of color. Source: American Association of Textile Chemists and Colorists Research Triangle Park P.O. Box 12215 Durham, North Carolina 27709 U.S.A. FORD LABORATORY TEST METHOD AN 102-01 Page 2 of 4 Copyright 2001, Fo
6、rd Global Technologies, Inc. Rubber Stoppers Two 2-hole #8 stoppers. Test Tubes Two 38 x 200 mm Corning glassware test tubes or equivalent. Miscellaneous Apparatus Glass tubing, cotton packing, plastic tubing and pinch clamp as per Figure 1. Rack or Fixture To hold the apparatus shown in Figure 1. C
7、onditioning and 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 NOTE: The te
8、st must be performed under good ventilation conditions in suitable fume hood. 1. Assemble the apparatus per Figure 1, adding 50 cm3 of tap water to Tube “A“. 2. Place the test specimen, approximately 2500 mm2 in area, into Tube “B“ (Tube “B“ has been previously dried at 100 C for 30 minutes and is f
9、ree of residual moisture). 3. Open the hydrogen sulfide cylinder valve and remove the pinch clamp from the exhaust hose on Tube “B“. Adjust the valve so that a hydrogen sulfide gas rate of 3 to 5 bubbles per s is obtained. Allow the gas to flow for 90 +/- 5 s. Note: The flow rate must not be high en
10、ough to cause moisture to be carried over into Tube “B“. 4. After flowing the gas for the specified time, close the valve and replace the pinch clamp onto the Tube “B“ exhaust hose. Allow the specimen to remain in Tube “B“ for 120 +/- 5 s. 5. Remove the sample from Tube “B“. FORD LABORATORY TEST MET
11、HOD AN 102-01 Page 3 of 4 Copyright 2001, Ford Global Technologies, Inc. Evaluation 1. Examine the specimen and assess for hydrogen sulfide staining using the AATCC color chart. (a) Immediately after removal from the test apparatus and (b) after standing for 24 h at 23 +/- 2 C while exposed to the l
12、aboratory atmosphere (if specified by the Engineering Material Specification). Report as required by the applicable Engineering Material Specification. 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. FORD LABORATORY TEST METHOD AN 102-01 Page 4 of 4 Copyright 2001, Ford Global Technologies, Inc. RESISTANCE OF PLASTIC MATERIALS TO HYDROGEN SULFIDE STAINING Tubing made of glass and rubber or plastic (inner dia. Approx. 5 mm) Figure 1
