1、 ENGINEERING MATERIAL SPECIFICATIONDate Action Revisions 2006 05 03 N-STATUS Replaced by WSS-M99P32-B; Ins 3.0; Del 3.1, 3.6 50% deflection; speed of deflection shall be 2 in (50 mm)/min. Compression test areas (e. g. bolster and insert areas) and test values shall be as specified on the engineering
2、 and/or pattern drawings. Typical compression load range at 50% deflection 5.0 - 8.0 lb (22.2 -35.6 N). 3.5.2 Compression Load Deflection Change, max +/-40% from original Test Method: Determine original compression load deflection per para 3.5.1 on a test specimen measuring 6 x 6 x 2 in (150 x 150 x
3、 50 mm) minimum thickness. Age the specimen for 3 h at 2.8 +/- 1.5 psi (19 +/- 10 kPa) and/or 105 +/- 6 C in the steam autoclave, followed by drying in the oven at 105 C for 3 h. After conditioning for 2 h at 23 +/- 2 C and 50 +/- 5% relative humidity, re-determine the compression load in lb (N) at
4、50% deflection. Compute the percent change in compression load. % Change in Compression Load = L2 - L1 - x100 L1 L1 = Original 50% Load L2 = Aged 50% Load ENGINEERING MATERIAL SPECIFICATION ESB-M17H141-A Printed copies are uncontrolled Copyright 2006, Ford Global Technologies, LLC Page 3 of 4 3.5.3
5、Low Temperature Load Compression, max 50% change from (ASTM D 1564, Suffix “D“) original load compression. Test specimen size is 6 x 6 x 2 in (150 x 150 x 50 mm) thick; speed of deflection shall be 2 in (50 mm)/min. Test Method: At room temperature, determine the initial thickness of the specimen un
6、der 1 lb (4.5 N) preload, then the compression load at 25 % deflection. Condition the specimen for 2 h at -34 C. Remove from the cold chamber and within two minutes obtain the load again at 25% deflection. Compute the change in compression load. 3.5.4 Fatigue Resistance, max 20%height loss at 50 lb
7、(222N) (FLTM BO 012-04, 20,000 IRGL. cycles; 60 lb (27 kg) shear load roller assembly) Any surface foam deterioration such as crumbling or pilling shall be cause for rejection. Test specimens: Size of foam assembly shall be 15 x 12 x 2 in (380 x 300 x 50 mm) thick. Two simulated trim covers must be
8、constructed utilizing routed foam assemblies which are covered with a typical knit bodycloth and sewn into: 1) three 4 in (100 mm) wide bolsters (roller movement parallel to bolsters) and; 2) three 5 in (125 mm) wide bolsters (roller movement perpendicular to bolsters). The test specimens shall be m
9、ounted in the test apparatus with a 15 x 12 x 1/2 in (380 x 300 x 13 mm) polyurethane foam pad ( ESB-M4D113-C Type I or equivalent) beneath it. The entire assembly is held in place by tightly securing the edges of the bodycloth. 3.5.5 Ply Adhesion, min 0.5 lb/in (88 N/m) (ASTM D 413 - Machine Method
10、, Strip Specimen) The foam shall not separate cleanly from the sheeting, i.e. the adhesion of the sheeting to the foam should exceed the tear strength of the foam and shall exhibit foam particles adhering to the sheeting. 3.5.6 Flexibility No cracking or crumbling Test Method: A specimen 2 x 6 x 1 i
11、n (50 x 150 x 25 mm) thick shall be subjected to autoclave aging outlined under FLTM BN 115-07, followed by 3 h drying at 105 C and 2 h conditioning at 23 +/- 2 C. The sample is subsequently bent 180 deg around a 1/4 in (6 mm) diameter mandrel. 3.5.7 Low Temperature Flexibility (FLTM BN 102-01) No e
12、vidence of cracks or failure at -34 C. 3.5.8 Odor Not offensive before or after the deterioration test of para 3.5.2. 3.5.9 Staining None Test Method: A typical light-colored knit bodycloth (employing no backcoating shall be placed in intimate contact over 4 x 4 in (100 x 100 mm) specimens of the fo
13、am. Expose the assembly under the fluorescent sunlamps as described in FLTM BO 115-01 for 150 h at 63 +/- 3 C. ENGINEERING MATERIAL SPECIFICATION ESB-M17H141-A Printed copies are uncontrolled Copyright 2006, Ford Global Technologies, LLC Page 4 of 4 3.5.10 Solvent Resistance No surface tackiness or
14、evidence of foam deterioration. Test Method: Immerse specimens of the foam assembly in the following approved fabric and upholstery cleaners: M-14J503 petroleum naphthol spirits; ESF-M8B12-A, denatured alcohol; and soap solution, made up of equal parts of ESB-M1B9-A (or 2% solution of “Lux Liquid“)
15、and tap water for a period of 1 h each at temperature defined in para 3.1. 3.5.11 Fogging, min (SAE J1756) Light Transmission 95 3.5.12 Flammability In order to comply with Federal Motor Vehicle Safety Standard No. 302, the materials, portions of components, and composites shall not burn, or transmi
16、t a flame across its surface, at a rate of more than 4 in (101 mm) per min. To demonstrate compliance, the sample size and method of testing shall be in accordance with FLTM BN 024-02. 3.5.13 Performance - Environmental Aging All materials, portions of components, and composites defined by this spec
17、ification that have not been treated, modified or reformulated and exceed a max burn rate of 3.0 in (76 mm) per min as specified by the Flammability Lot Sampling Plan of FLTM BN 024-02, must be evaluated for permanency of the materials flame retardant properties per ESB-M25P3-A according to the acce
18、lerated environmental aging requirements applicable to the basic material category of this particular specification. Any material, portions of components, and composites defined by this specification that have been treated, modified or reformulated to conform to Flammability Lot Sampling Plan of FLT
19、M BN 024-02, regardless of max burn rate, must be evaluated for both permanency of materials flame retardant properties and changes in mechanical, chemical and physical properties per ESB-M25P3-A applicable to the basic materials category of this particular specification. 3.5.14 Flammability Test Pr
20、ogram Materials, portions of components, and composites governed by this specification must also comply with the requirements of ES-D3AB-11014-AA. 5. GENERAL INFORMATION: The information given below is provided for clarification and assistance in meeting the requirements of this specification. 5.1 L
21、AMINATED ASSEMBLIES In applications requiring lamination of the super soft foam to other materials (i.e., other foams, fibers, sheetings), a compatible, pliable adhesive system must be selected which will not harden or result in delamination with age, stain or otherwise adversely affect the unique properties of the foam or the “feel“ of the assembly.
