1、 ENGINEERING MATERIAL SPECIFICATIONMaterial Name Specification NumberDate Para. No. Revisions1978 10 06 Metricated and Retyped CAHI-RD572066-1141978 06 26 Released CAH1-PR-901062-5WP 3948-a Page 1 of 3SCRIM, POLYESTER NETTING - 1.5 oz/yd 2 (51 g/m 2 ) ESB-M9H65-C1. SCOPEThe material defined by this
2、specification is a polyester netting of goodquality and uniform composition, composed of three layers of yarns,bonded at right angles to simulate a plain woven fabric.2. APPLICATIONThis specification was released originally for material used as areinforcement laminated between mastic and a reclaimed
3、 fiber pad toprovide material strength for vertical installation between the luggagecompartment and rear seat on the 1979 Ford carline.3. REQUIREMENTS3.1 CONDITIONINGAll test values indicated herein are based on material conditionedin a controlled atmosphere of 23 2 C and 50 5% relativehumidity for
4、24 h prior to testing and tested under the samecontrolled conditions.3.2 COMPOSITION(ASTM D 629)3.2.1 Yarn Size and Description 500 den (56 tex)(ASTM D 1244) (polyester, con-tinuous filament)3.2.2 Adhesive Polyvinyl chloridewith flame retard-ant phosphateplasticizer3.3 CONSTRUCTION, +/- 5%(ASTM D 19
5、10)Ends 5/in (20/100 mm)Picks 3/in (12/100 mm)3.4 WEIGHT, min 1.5 oz/yd 2(FLTM BN 6-1) (51 g/m 2 )3.5 BREAKING STRENGTH, Min(ASTM D 1682, Grab Method)Warp 35 lb (156 N)Fill 20 lb (89 N)Note: Sample must be mounted so that both top and bottom jaws graspthe same yarns.ENGINEERING MATERIAL SPECIFICATIO
6、N ESB-M9H65-CWP 3948-b Page 2 of 33.6 BURST STRENGTH, min 60 psi (414 kPa)(ASTM D 231, average of 5 tests)3.7 YARN BOND STRENGTH, minOriginal 1.5 lb (6.7 N)Wet (24 h water immersion at 1.0 lb (4.5 N)23 +/- 2 C)Heat Aged (24 h at 82 C) 1.0 lb (4.5 N)Test Method. Crosshead speed: 5 in (125 mm)/min.Sam
7、ple size: 3 in (76 mm) wide.Sample preparation: sample shall have the middle yarn extendingfrom the end of the sample as shown. Clip this yarn 10 bond pointsfrom “A“ as shown.Clamp extended yarn in upper jaw. Clamp bottom of sample in jawmeasuring 2 x 3 in (51 x 76 mm).Start crosshead and extend unt
8、il the 10 bond points separate.Test 5 samples in each direction, and compute their average.3.8 FLAMMABILITY, max 4 in (101 mm)/min(FLTM BN 24-2, without the lotsampling plan)In addition, the test specimen shall not exhibit any flashing orsudden flaming on either surface in excess of the above maximu
9、mvalue.3.9 COLD FLEXIBILITY(FLTM BN 2-1, 1/2 in (13 mm) mandrel dia.)The yarn and yarn bonds of the material shall remain flexible andnot crack when bent 180 at -34 C).ENGINEERING MATERIAL SPECIFICATION ESB-M9H65-CWP 3948-b Page 3 of 33.10 SUPPLIERS RESPONSIBILITYMaterial supplied to this specificat
10、ion 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.
