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The terms included in the/Glossary are general in nature and usually apply to more than one manufacturer’s system. All terms in Section 3 apply to automotive restraint systems in general 'which are initiated by an electric or mechanical stimulus upon receipt of a signal from a sensor. All terms in Section 4 apply primarily to the initiator used in automotive restraint systems. In some cases, the same terms appear in both sections to allow for the general definition and for definitions applying specifically to initiators. These terms are intended to reflect existing designs and the Glossary will be updated as information on other types of systems becomes available. Appendix A is included to identify terminology that is no longer in common use or specifically applicable to inflatable restraint systems, but was published in the April 1988 version of SAE J1538.

This SAE Recommended Practice describes a method to collect, identify, and quantify effluent resulting from deployment of in-vehicle stored energy restraint systems. Deployment and collection is completed in a 2.83 m3 (100 ft3 ) chamber. This procedure is written as a guideline for the identification and quantification of both particulate effluent (size, concentration, and composition) and gaseous effluent (concentration and composition). The intent of this procedure is to describe and recommend testing methods and not to establish limits for the effluent. This procedure should be used in conjunction with performance specifications from the customer and/or manufacturer of the device(s) being tested. This is a general procedure for repetitive and comparative testing, and suggests only general guidelines for the safe conduct of tests and reliable data correlation.