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ASTM D5426-2008 充气减震织物的外观检查和等级评定的标准实施规程

ASTM D5426-2008 充气减震织物的外观检查和等级评定的标准实施规程

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【英文标准名称】: Standard Practices for Visual Inspection and Grading of Fabrics Used for Inflatable Restraints
【原文标准名称】: 充气减震织物的外观检查和等级评定的标准实施规程
【标准号】: ASTM D5426-2008
【标准状态】: 现行
【国别】: 美国
【发布日期】: 2008
【实施或试行日期】:
【发布单位】: 美国材料与试验协会(US-ASTM)
【起草单位】: D13.20
【标准类型】: (Practice)
【标准水平】: ()
【中文主题词】:
【英文主题词】: airbag; cushion; grading; imperfection; inflatable restraint; inspection; Airbag materials/applications; Defects; Grading--textiles; Imperfection; Inflatable restraints; Inspection; Woven textile fabrics
【摘要】: These practices are suitable for incorporation in a specification. Any reference to material or cushion specification in these practices shall mean any similar agreement between the purchaser and supplier relating to the inspection and acceptance of fabric intended for inflatable restraint use. These practices constitute the terminology, conditions, equipment, and procedures by which rolls of inflatable restraint fabrics or cut parts are inspected and graded. A specification incorporating these practices may deviate from them to account for considerations of fabric property, material handling equipment, or inflatable restraint cushion design, or a combination thereof. Whenever such deviations from standard occur, they are recorded in the report. These practices acknowledge that, in the normal course of production, acceptable rolls of fabric will be produced containing imperfections; subsequently, pieces will be cut from the rolls and those pieces that contain imperfections restricted in Tables 1-5 will be culled at that time. The accuracy in the results from visually inspecting fabric using these practices is affected by the ability of the inspector to detect, identify, and evaluate the severity of an imperfection in a moving fabric or in a cut part. Such ability can be affected by visual acuity, viewing distance, fabric traverse speed, lighting conditions, inspector discipline and training, and the availability and accuracy of suitable visual aids. Systematic bias may result from using these practices whenever the precision or scale of the visual aids used to identify and quantify imperfections differs between the purchaser and supplier.1.1 These practices cover procedures for the inspection and grading of coated and uncoated woven flat and one-piece woven (OPW) fabrics, and for the inspection and culling of cut parts made of such fabrics, all of which are used in the manufacture of inflatable restraint cushions. 1.2 For ease of reference, the scope, summary of practice, significance and use, apparatus, sampling, procedure, and report sections are listed separately for each inspection practice. Inspection Practice
Section


Fabric Rolls
7
Cut Pieces x0026; OPW
8

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