1、 FORD LABORATORY TEST METHOD AY 103-01 Date Action Revisions 2000 08 30 Revised Editori al no technical change A. Cockman 2000 05 22 Editorial no technical change A. Cockman 1992 03 17 Printed copies are uncontrolled Page 1 of 4 Copyright 2000, Fo rd Global Technologies, Inc. ATTRITION TEST FOR MOLE
2、CULAR SIEVE BEADS Application This test method is used to determine the abrasion resistance of molecular sieve beads immersed in liquid. Apparatus Required Glass Jars and Metal Lids Wide mouth: 200 ml capacity - height 80 mm, 50 mm O.D. Alternate: 250 ml capacity - height 120 mm, 50 mm I.D. Source:
3、Smith Container Company P.O. Box 6176 Atlanta, Georgia 30300 Mixer - Red Devil Model No. 30 paint conditioner Source: Red Devil Tools Union, New Jersey 07083 Jar Holder This is a modified jar holder fabricated from 25 mm thick plywood holding two jars in the shaker (see Figure 1). Gaskets - Made fro
4、m plain compressed sheet packing 1.5 mm thick. Funnel - Metal, glass, or polypropylene with 100 mm opening at the top. Screen - 100 mesh, 50 mm in diameter Oven Convection: capable of maintaining a temperature of 100 C and properly vented to exhaust trichlorethylene fumes. FORD LABORATORY TEST METHO
5、D AY 103-01 Page 2 of 4 Copyright 2000, Ford Global Technologies, Inc. Graduate cylinder - 250 ml, 2 required Tared Beakers - Pyrex, 600 ml, 2 required Torsion Balance - 500 to 1000 g capacity accurate to +/ - 0.1 g Materials Required Solvent - trichlorethylene Conditioning and Test Conditions All t
6、est values indicated herein are based on material conditioned in a controlled atmosphere of 23 +/ - 2 C and 50 +/ - 5 % relati ve humidity for not less than 24 h prior to testing and tested under the same conditions unless otherwise specified. Procedure 1. Place a gasket in each jar lid. 2. Place 13
7、0 ml of the molecular sieve beads in a tared graduate and record sample weight to +/ - 0.1 g. 3. Transfer the sample to a jar and add enough trichlorethylene to completely immerse the beads in the liquid. The liquid should just cover the beads, leaving a free space in the top of the jar. Tighten lid
8、 securely to prevent leakage duri ng pulsating test. Invert jar for a few minutes to check for leaks. 4. Repeat steps 2 and 3 with a second jar. 5. Place the jars in the jar holder side by side in the vertical position and aligned along plane A - A (see Figure 1). 6. Start shaker and all ow samples
9、to shake for 2 h (40 000 cycles). 7. Remove one jar from the shaker, insert the clean 100 mesh screen in the clean funnel and filter the sample through the funnel. Collect the trichlorethylene in a tared beaker. Rinse the jar and lid with cle an trichlorethylene and pour over the sample on the 100 m
10、esh screen. Pour clean trichlorethylene over the sample on the screen so that all material less than 100 mesh is washed into the beaker. FORD LABORATORY TEST METHOD AY 103-01 Page 3 of 4 Copyright 2000, Ford Global Technologies, Inc. 8. Repeat step 7 with the second jar. 9. Allow beakers to s tand f
11、or 15 - 20 minutes and decant as much clear trichlorethylene as possible. 10. Place samples in an oven at 100 - 120 C until residue appears dry. Allow to dry at 100 C minimum for an additional one - half hour. 11. Remove samples and cool before weig hing. Note: This material is a desiccant and follo
12、wing the above drying operation must be protected from moisture absorption prior to weighing. 12. Weigh samples, record weights, and calculate loss as follows: % wt. loss = wt. of material less than 100 mesh in beaker x 100 sample weight 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 AY 103-01 Page 4 of 4 Copyright 2000, Ford Global Technologies, Inc. Attrition Test for Molecular Sieve Beads Jar Holder Figure 1
