IEC 60695-6-1:2005+A1:2010 Gives guidance on:a) optical measurement of smoke obscuration;b) general aspects of optical smoke test methods;c) consideration of test methods;d) expression of smoke test data;e) relevance of optical smoke data to hazard assessment.The main changes with respect to the previous edition are listed below:- Modified title.- Updated normative references.- Expanded terms and definitions.- Numerous editorial changes of a technical nature throughout the publication.- A flowchart has been added for the evaluation and consideration of smoke test methods.Has the status of a basic safety publication in accordance with IEC Guide 104.This publication is to be read in conjunction with IEC 60695-6-2:2005.This consolidated version consists of the second edition (2005) and its amendment 1 (2010). Therefore, no need to order amendment in addition to this publication.