1、 FORD LABORATORY TEST METHOD BI 113-07 Date Action Revisions 2002 11 22 Activated A. Wedepohl Printed copies are uncontrolled Page 1 of 2 Copyright 2002, Ford Global Technologies, Inc. RESISTANCE TO SYNTHETIC PERSPIRATION STAINING Application This method is used to determine the resistance of finish
2、ed surfaces to perspiration staining. Apparatus Required Analytical Balance Precision +/- 0.001 g Graduated Container 1000 mL Watch Glasses Diameter, 65 mm minimum Materials Required Sodium Chloride, Reagent grade Disodium hydrogen orthophosphate, anhydrous, Reagent grade Lactic Acid, Reagent grade,
3、 87% Ammonium Carbonate, Regent grade Distilled or Deionized Water 20 micromhos/cm at 25 C maximum conductivity (ASTM D 1125) Gauze Pads, 50 x 50 mm Required Solutions Acid Perspiration Solution Sodium Chloride 10 g Lactic Acid 1 g Disodium hydrogen orthophosphate 1 g Water 1 liter FORD LABORATORY T
4、EST METHOD BI 113-07 Page 2 of 2 Copyright 2002, Ford Global Technologies, Inc. Alkaline Perspiration Solution Sodium Chloride 10 g Ammonium Carbonate 4 g Disodium hydrogen orthophosphate 1 g Water 1 liter Conditioning and Test Conditions All test values indicated herein are based on material condit
5、ioned in a controlled atmosphere of 23 +/- 2 C and 50 +/- 5% relative humidity for not less than 24 hours prior to testing and tested under the same conditions unless otherwise specified. Procedure 1. Saturate a gauze pad with the test solution and place it on the finished surface. Cover the gauze p
6、ad with a watch glass to reduce evaporation. 2. Allow the gauze pad and test solution to remain on the surface for 8 hours, replacing the gauze pad with a freshly saturated pad every 2 hours. 3. Remove the gauze pad and carefully wipe off the excess test solution with a lint-free cloth. 4. Allow the
7、 sample to air dry prior to evaluation. Evaluation 1. Determine any color change in accordance with ISO 105-A02/AATCC Evaluation Procedure 1. 2. Compare the gloss and finish of the tested and untreated areas of the test specimen. 3. Rub test area with the curved end of a paperclip to detect softening of the finish. 4. Report any blistering, softening, peeling, bubbling, or loss of adhesion. 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.
