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ASTM E1265-2004
Standard Test Method for Measuring Insertion Loss of Pneumatic Exhaust Silencers (Reinstated 2004)
适用范围：<p>1.1 This test method covers the laboratory measurement of both the acoustical and mechanical performance of pneumatic exhaust silencers designed for quieting compressed gas (usually air) exhausts from orifices connected to pipe sizes up to 3/4in. NPT. This test method is not applicable for exhausts performing useful work, such as part conveying, ejection, or cleaning. This test method evaluates acoustical performance using A-weighted sound level measurements.</p><p>1.2 The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are provided for information only.</p><p>1.3 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. <med>Specific precautionary statements are given in Section 8.</med></p>
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