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ASTM D5427-09

Current Revision

Standard Practice for Accelerated Aging of Inflatable Restraint Fabrics

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1.1 This practice describes the procedures for the accelerated aging of inflatable restraint fabrics when required as a preparatory step for other test methods.

1.1.1 In Section 7, this practice lists four methods for conducting accelerated aging that are of concern to the design and manufacture of inflatable restraints. They are as follows:

DescriptionSection
Cycle aging (Option A or B)8.4
Heat aging (Option A or B)8.6
Humidity aging (Option A or B)8.7
Ozone aging8.8

1.2 This practice may be used in conjunction with other ASTM test methods when subsequent tests of physical properties are required of aged fabric specimens.

1.3 Procedures and apparatus other than those stated in this practice may be used by agreement between the purchaser and the supplier with the specific deviations from the standard practice acknowledged in the report.

1.4 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system are not exact equivalents; therefore, each system must be used independently of the other.

1.5 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

For inflatable restraints, practices for conducting accelerated aging are designed to determine the aggravated effects on a fabric from exposures to heat, humidity, or ozone, or a combination thereof. These environmental conditions may also be cycled in combination. The four accelerated aging procedures of concern to the design and manufacture of inflatable restraints are referred to as cycle aging, heat aging, humidity aging, and ozone aging.

The environmental conditions described in this practice are designed to allow restraints so that reliable comparisons may be made between different fabrics and different laboratories.

In order to achieve precise and reliable physical property comparisons of different fabrics, it is necessary to control accurately the humidity, temperature, ozone, and cycling conditions to which the fabric is subjected.

Fabric specimens are configured in accordance with the requirements of test methods to be conducted on the specimens subsequent to accelerated aging.

Unless otherwise specified by agreement between the purchaser and the supplier, this practice shall constitute the conditions, procedures, and equipment by which inflatable restraint fabrics are conditioned and aged. It is intended to be used as a guideline in establishing a written material specification. The specification or agreement of the purchaser and the supplier may deviate from the practices described herein when (based on experience) considerations of fabric properties, material handling equipment, or inflatable restraint system design dictate otherwise.

SDO ASTM: ASTM International
Document Number D5427
Publication Date Jan. 15, 2009
Language en - English
Page Count 3
Revision Level 09
Supercedes
Committee D13.20
Publish Date Document Id Type View
Jan. 15, 2009 D5427-09 Revision
July 1, 2008 D5427-08 Revision
Oct. 1, 2003 D5427-03 Revision
April 10, 2002 D5427-02 Revision
March 10, 1998 D5427-98 Revision
Jan. 1, 2019 D5427-09R19 Reaffirmation
July 1, 2014 D5427-09R14 Reaffirmation
July 1, 2007 D5427-03R07 Reaffirmation