1、 ENGINEERING MATERIAL SPECIFICATIONMaterial Name Specification NumberDate Para. No. Revisions1982 06 24 Released B3D-3268/CDM1-DC-594161-1WP 3948-a Page 1 of 2TAPE, ELASTIC, UNDYED - 1/2 in (13 mm) WIDTH ESB-M6H29-A1. SCOPEThe material defined by this specification is an elastic braided tape ofgood
2、quality and uniform composition.2. APPLICATIONThis specification was released originally for tape used to controlwrinkles in seat covers (rollover areas) on 1983 LTD and Marquis models.3. REQUIREMENTS3.1 CONDITIONINGAll test values indicated herein are based on material conditionedin a controlled at
3、mosphere of 23 +/- 2 C and 50 +/- 5 % relativehumidity for 24 hours prior to testing and tested under the samecontrolled conditions.3.2 WIDTH 1/2 +/- 1/32 in (13 +/- 1.0 mm)3.3 WEIGHT, min 22 oz/100 yd (0.682 kg/100 m)(FLTM BN 6-1)3.4 CONSTRUCTION, min(per full width)Warp (A) Rubber 16 ends (total w
4、idth)(B) Rayon 33 ends (total width)Fill Rayon 72 +/- 5 picks/in (28 +/- 2picks/cm)3.5 YARN SIZE AND DESCRIPTION(ASTM D 1244)Warp (A) 42s Cut Rubber(B) 450 den (50 tex) Rayon,multifilamentFill 450 den (50 tex) Rayon,multifilament3.6 TENSILE STRENGTH, lb (N), min(ASTM D 1682)Warp 30 (133.5)ENGINEERIN
5、G MATERIAL SPECIFICATION ESB-M6H29-AWP 3948-b Page 2 of 23.7 MODULUS OF RETENTIONAfter aging, the modulus of retention shall remain within 75 % ofthe initial measured modulus.Test Method: Mark off a 5 in (127 mm) section 2 in (51 mm) fromthe ends of 9 in (229 mm) test specimen. Insert specimen 1 in
6、25mm) deep in jaws of tensile testing machine. Extend 5 in (127 mm)area of specimen 20 % (at a rate of 1 in/min (25 mm/min) andrecord load. Oven age specimen at 93 C for 48 h and repeat 20 %extension.3.8 SHRINKAGE, max(FLTM BN 5-1)Warp 15 % 3.9 FLAMMABILITYIn order to comply with Federal Motor Vehi
7、cle 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 101 mm/min. To demonstrate compliance, the sample size andmethod of testing shall be in accordance with FLTM BN 24-2.3.10 SUPPLIERS RESPONSIB
8、ILITYMaterial supplied to this specification must be equivalent to thatoriginally approved. Changes in formulation or processing shallnot be made without prior approval as described 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.
