1、 ENGINEERING MATERIAL SPECIFICATION Date Action Revisions 2006 10 18 Revised Inserted 3.0; Deleted 3.16 Corrected numbering in 3 1994 12 16 Revised specimen to be cut from finished part) 3.7.1 Original, min 210 N/cm2 3.7.2 After Humidity Ageing, max -15% (48 h at 38 +/- 2 C and 98 +/- 2% relative hu
2、midity) 3.7.3 After Heat Ageing No loss (14 d at 90 +/- 2 C, 1 h at room temperature) 3.7.4 After Immersion in Engine Oil, max -10% (48 h in Oil No. 1 of ASTM D 471 at room temperature) 3.8 TEAR RESISTANCE, min 180 N/cm (ASTM D 624, Die C; specimens to be cut from finished part) 3.9 RESISTANCE TO VA
3、RIOUS REAGENTS The material shall not dissolve or exhibit tackiness when lightly rubbed for 15 seconds with a cloth, soaked with each of the following reagents. Use separate specimens, cut from the finished part for each reagent. Test Reagents: 1) Oil No. 1 of ASTM D 471 2) Brake fluid, SA-M6C9101-A
4、 3) Sulfuric acid (10 % by weight in distilled water) 4) Longlife coolant SS-M97B9103-A, 50% by weight in distilled water 5) Rust preventive compound SK-M7C9552-A. ENGINEERING MATERIAL SPECIFICATION SS-M99G9515-A Printed copies are uncontrolled Copyright 2006, Ford Global Technologies, LLC Page 3 of
5、 5 3.10 ACOUSTIC OVERALL EFFICIENCY (FLTM BV 160-03) Minimum 10 dB for range 200 - 800 Hz. Note: The supplier is required to provide, together with the Initial Sample Report, specimens in dimensions as specified and of same material and equivalent manufacture used for the finished part. Samples for
6、control and routine checks shall be submitted as required by Quality Control. 3.10 AIR BORNE NOISE INSULATION (See Figure 1) Note: If the finished part does not allow the preparation of specimens in dimensions as necessary for this test, proceed according to 3.9, Note. 3.12 FINISHED PART REQUIREMENT
7、S 3.12.1 Dimensions As specified on Engineering drawing 3.12.2 Mass (kg) The tolerance in mass of the finished part for any one supplier shall be maximum +/- 10%, based on the recorded mass of his originally approved initial sample. 3.12.3 Heat Stability The part shall show no visible shrinkage or d
8、istortion, respectively it shall not warp to an extent that would affect its use in ultimate assembly. Furthermore, it shall show no change in appearance when compared with the original unaged part. Test Method: The finished part shall be subjected to a temperature of 90 +/- 2 C air temperature for
9、24 hours. Examine after cooling to room temperature. 3.12.4 Moisture Absorption, max 5% Test Method: 1) Weigh finished part nearest to 5 g. 2) Condition the part in suspended position at 98 +/- 2% relative humidity and 38 +/- 2 C for 24 hours. 3) After 1 hour at room temperature weigh the part neare
10、st to 5 g and determine increase of weight in percentage based on original weight. ENGINEERING MATERIAL SPECIFICATION SS-M99G9515-A Printed copies are uncontrolled Copyright 2006, Ford Global Technologies, LLC Page 4 of 5 3.12.5 Environmental Cycling The finished part shall show no evidence of a vis
11、ible shrinkage or distortion, respectively it shall not warp to an extent that would affect its use in ultimate assembly. Furthermore, it shall show no change in appearance when compared with the original unaged part. Test Method: The finished part shall be subjected 3 times to the following cycle i
12、n the sequence indicated below: 16 h at 38 +/- 2 C and 98 +/- 2% relative humidity 4 h at 80 +/- 2 C 4 h at -40 +/- 2 C Examine after 1 hour conditioning at room temperature. 3.13 MILDEW RESISTANCE AND ODOR No evidence of mildew development. The odor test shall be in accordance with FLTM BO 131-01,
13、maximum Rating 2. Test Method: Place a 100 x 100 mm sample, soaked with distilled water in a beaker glass of one liter capacity and cover tightly with a lid. Maintain assembly at a temperature of 35 +/- 2 C for 14 days. Remove lid and examine for evidence of mildew development. 3.14 SUBSTANCE CONTRO
14、L Legal, health, safety and environmental constraints may apply to the materials which are submitted for approval to this specification. Refer to Engineering Material Specification WSS-M99P9999-A1. ENGINEERING MATERIAL SPECIFICATION SS-M99G9515-A Printed copies are uncontrolled Copyright 2006, Ford Global Technologies, LLC Page 5 of 5
