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IEC 60079-4A:1970 ed1.0

Заменен
Electrical apparatus for explosive gas atmospheres - Part 4: Method of test for ignition temperature - First supplement. *Note.-This supplement applies also to the second edition of 1975 — 5 стр.
Gives a list of established ignition temperatures.
ICS
29.260.20 Electrical apparatus for explosive atmospheres / Электрическое оборудование для взрывоопасной атмосферы