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IEC 60695-6-2:2018 provides a summary of commonly used test methods for the assessment of smoke obscuration. It presents a brief summary of static and dynamic test methods in common use, either as international standards or national or industry standards. It includes special observations on their relevance to electrotechnical products and their materials and to fire scenarios, and gives recommendations on their use.
This basic safety publication is primarily intended for use by technical committees in the preparation of standards in accordance with the principles laid down in IEC Guide 104 and ISO/IEC Guide 51. It is not intended for use by manufacturers or certification bodies.
It has the status of a basic safety publication in accordance with IEC Guide 104 and ISO/IEC Guide 51.
This standard is to be used in conjunction with IEC 60695-6-1.
This standard cancels and replaces IEC 60695-6-2 published in 2011. This second edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition:
a) updated introduction;
b) updated normative references;
c) new text in 4.1;
d) deletion of references to IEC 60695-6-30 and -31 (withdrawn)
e) updates with respect to ISO 5659-2;
f)  deletion of references to BS 6853 and CEI 20-37-3 (superseded);
g) deletion of references to ISO/TR 5924 (withdrawn);
h) updated text with respect to EN 50399;
i)  updated text with respect to ISO 5660-1;
j)  addition of new Subclause 7.5
k) deletion of Annex B;
l)  deletion of Annex E;
m) additional bibliographic references.
Key words: Fire Hazard, Smoke Obscuration