10/30218976 DC : DRAFT JUNE 2010
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
BS EN 1793-1 - ROAD TRAFFIC NOISE REDUCING DEVICES - TEST METHOD FOR DETERMINING THE ACOUSTIC PERFORMANCE - PART 1: INTRINSIC CHARACTERISTICS OF SOUND ABSORPTION
02-28-2013
11-23-2012
Foreword
Introduction
1 Scope
2 Normative references
3 Symbols
4 Test arrangement
5 Test procedure and evaluation
6 Test report
Annex A (normative) - Categorization of single-number
rating
Annex B (informative) - Guidance note on use of the
number rating DL[alpha]
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