1、 ENGINEERING MATERIAL SPECIFICATIONMaterial Name Specification NumberDate Para. No. Revisions1978 10 06 Metricated and Retyped CAHI-RD572066-1141973 12 04 Released AD1-542WP 3948-a Page 1 of 3SHEETING, WOVEN POLYESTER - DYED - ESB-M9H81-A44 x 40/in (17 x 16/10 mm)1. SCOPEThe material defined by this
2、 specification is a woven polyester fabric ofgood commercial quality, which has been treated with a permanent flameretardant finish.2. APPLICATIONThis specification was released originally for listings and as a coveringfor pad mounted sensor switches.3. REQUIREMENTS3.1 CONDITIONINGAll test values in
3、dicated herein are based on material conditionedin a controlled atmosphere of 23 2 C and 50 5% relativehumidity for 24 h prior to testing and tested under the samecontrolled conditions.3.2 CONSTRUCTION(ASTM D 1910)44 ends/in (17 ends/10 mm)40 picks/in (16 picks/10 mm)3.3 COMPOSITION(ASTM D 629)Polye
4、ster 100%3.4 WEAVE Plain3.5 YARN SIZE AND DESCRIPTION(ASTM D 1244)Warp 20 cc (29 tex) 17 tpi (669 tpm) (Polyester, Spun, 1.5 den(0.17 tex) 1-1/2 in (38 mm) Staple)Fill 18 cc (33 tex) 16 tpi (630 tpm) (Polyester, Spun, 1.5 den(0.17 tex) 1-1/2 in (38 mm) Staple)3.6 WEIGHT, min 3.2 oz/yd 2 (108 g/m 2 )
5、(FLTM BN 6-1)3.7 BREAKING STRENGTH, min(ASTM D 1682, Grab Method)Warp 80 lb (356 N)Fill 90 lb (400 N)ENGINEERING MATERIAL SPECIFICATION ESB-M9H81-AWP 3948-b Page 2 of 33.8 TEAR STRENGTH (Trapezoid), min(FLTM BN 22-1)Warp 12 lb (53 N)Fill 12 lb (53 N)3.9 STRETCH & SET, max(FLTM BN 4-1)Stretch SetWarp
6、, % 8 2.5Fill, % 9 5.03.10 DYEING Piece Dyed Gray3.11 FADE(FLTM BN 1-1)40 Standard Dry Fade Hours AATCC 5Rate after exposure using the AATCC Gray scale for EvaluatingChange in Color (10 Step).3.12 BLEEDING AND PERSPIRATION(FLTM AN 1-1)The contact materials shall correspond to rating 5 when compared
7、tothe AATCC Chart for Measuring Transference of Color. 3.13 FLAMMABILITYIn order to comply with Federal Motor Vehicle Safety Standard No.302, the materials, portions of components, and composites shallnot burn, or transmit a flame across its surface, at a rate of morethan 4 in (101 mm) per min. To d
8、emonstrate compliance, the samplesize and method of testing shall be in accordance with FLTM BN24-2.3.14 PERFORMANCE - ENVIRONMENTAL AGINGAll materials, portions of components, and composites defined bythis specification that have not been treated, modified orreformulated and exceed a max burn rate
9、of 3.0 in (76 mm) per minas specified by the Flammability Lot Sampling Plan of FLTM BN 24-2,must be evaluated for permanency of the materials flame retardantproperties per ESB-M25P3-A according to the acceleratedenvironmental aging requirements applicable to the basic materialcategory of this partic
10、ular specification.Any material, portions of components, and composites defined bythis specification that have been treated, modified or reformulatedto conform to Flammability Lot Sampling Plan of FLTM BN 24-2,regardless of max burn rate, must be evaluated for both permanencyof materials flame retar
11、dant properties and changes in mechanical,chemical and physical properties per ESB-M25P3-A applicable to thebasic materials category of this particular specification.ENGINEERING MATERIAL SPECIFICATION ESB-M9H81-AWP 3948-b Page 3 of 33.15 FLAMMABILITY TEST PROGRAMMaterials, portions of components, an
12、d composites governed by thisspecification must also comply with the requirements of ES-D3AB-11014-AA.3.16 SUPPLIERS RESPONSIBILITYMaterial supplied to this specification must be equivalent to thatoriginally approved. Changes in formulation or processing shallnot be made without prior approval as de
13、scribed in SupplierProcedure I-A.4. APPROVAL OF SUPPLIERSSuppliers to this specification must be approved by the affected productengineering office. Procedure for gaining approval of a specificmaterial to a new/existing ES-M specification is contained in SupplierProcedure I-A. Approved new suppliers will be added to the EngineeringMaterials Approved Source List.
