1、 ENGINEERING MATERIAL SPECIFICATION Date Action Revisions Rev 03 2012 01 18 N Status No replacement named N. Benipal, NA 2006 02 16 Revised Inserted 3.0; Deleted 3.1, 3.2, 3.6 and 4 1972 11 29 Released E38-192 (CE 38-085024) Controlled document at www.MATS Copyright 2012, Ford Global Technologies, L
2、LC Page 1 of 1 GLASS FIBER, FILTER, TYPE A ESE-M12G68-A NOT TO BE USED FOR NEW DESIGN 1. SCOPE The material defined by this specification is made of 100% glass fibers and contains no organic binder. 2. APPLICATION This specification was released originally for material used as a filter in the choke
3、delay valve. 3. REQUIREMENTS Material specification requirements are to be used for initial qualification of materials. 3.0 STANDARD REQUIREMENTS FOR PRODUCTION MATERIALS Material suppliers and part producers must conform to the Companys Standard Requirements For Production Materials (WSS-M99P1111-A
4、). 3.3 FIBERGLASS CONTENT, by weight, min 98.5% (Heat 1 h at 316 C) 3.4 DENSITY 0.13 - 0.23 g/cm3 (ASTM C 167) 3.5 WATER FLOW 200 - 750 mL/min/cm2 Test Method: Set up equipment used in high vacuum filtration, cut the glass filter to fit the filtration equipment. Pull a vacuum of 75 kPa of Hg. Pour 1
5、00 mL of water into the vacuum filtration equipment and using a stopwatch graduated in 1/10 of a second, determine the length of time it takes the water to flow through the filter. 100 W = T x 60 A Where W - Water flow rate in mL/min/cm2 at 75 kPa of Hg. T - Time in seconds for 100 mL of water to flow through filter. A - Effective filter area of the holder.
