FORD FLTM BZ 105-1-2001 SIEVE ANALYSIS OF MOLECULAR SIEVE DESICCANT (Replaces FLTM BZ 005-01).pdf

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1、 FORD LABORATORY TEST METHOD BZ 105-01 Date Action Revisions 2001 04 30 Revised Editorial no technical change A. Cockman 1998 08 12 Printed copies are uncontrolled Page 1 of 2 Copyright 2001, Ford Global Technologies, Inc. SIEVE ANALYSIS OF MOLECULAR SIEVE DESICCANT Application This test method desc

2、ribes the procedure used to determine the distribution of particle sizes in a sample of molecular sieve desiccant by shaking through a nest of U.S. standard sieves. Apparatus Required Sieve Shaking Machine RO-Tap machine or equivalent. VWR Scientific Catalog No. 57420-039. Source: VWR Scientific Chi

3、cago Regional Distribution Center 800 East Fabyan Parkway Batavia, IL 60510 Phone: 1-800-932-5000 Sieves The following U.S. standard 20.3 cm (8 inch) full height sieves shall be used unless otherwise specified. VWR Scientific catalog numbers are also provided for reference. U.S. Number VWR Catalog N

4、o. 3 57320-384 6 57320-442 8 57320-486 20 57320-002 100 57320-806 Pan 57355-006 Cover 57356-009 Analytical Balance Accuracy to 1 mg. Conditioning 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 hu

5、midity for not less than 24 h prior to testing and tested under the same conditions unless otherwise specified. FORD LABORATORY TEST METHOD BZ 105-01 Page 2 of 2 Copyright 2001, Ford Global Technologies, Inc. Procedure Note: The material is a desiccant. Sample must be taken from a previously unopene

6、d container. 1. Weigh 100 +/- 0.5 g of dry molecular sieve material. Record weight. 2. Stack sieves in order of mesh size with coarsest sieve on top and pan on bottom. 3. Place weighed sample on top sieve (No. 3 1/2). Put cover in place. 4. Place nested sieves in RO-Tap machine and shake for 10 +/-

7、0.3 minutes. 5. Remove the material collected on each sieve and weigh to the nearest 0.1 g. 6. Carefully remove the material collected on the pan and weigh to the nearest mg. 7. Divide weights of each fr action by the original weight and multiply by 100 to obtain percentage. Report each fraction to the nearest 0.1 % except for that collected in the pan which shall be reported to the nearest 0.01 %. 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.