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ISO 9994 defines safety specifications of a lighter such as maximum flame height
PFS (PISCES foundation specifications) which contain a framework for classification of applications adhering to the IEC 61162-4 standard
These gaps in our knowledge will best be addressed by a multidisciplinary approach
with a rated voltage less than 250 V for singlephase appliances and 480 V for other appliances
Optics and optical instruments. Lasers and laser-related equipment. Lifetime of lasers Ingestion-build-67170 ISO 9994 defines safety specifications1 Scope This International Standard covers terms and definitions as well as test methods and evaluation procedures to characterize, estimate and predict the longterm behaviour of various types of lasers. This International Standard defines terms for the lifetime of lasers and specifies test procedures and fundamental aspects for the determination of lifetime. It applies for all types of lasers for which lifetime is a critical issue, including diode