Optics and photonics. Operation microscopes - Requirements and test methods Ingestion-build-83346 BS EN 61189-3-719 is intended

BS EN 61189-3-719 is intended to represent the heat impact on a PCB during reflow and possibly subsequent selective soldering processes

The common measuring conditions and methods

and specifies methods for the determination of the presence of signs of “Sonnenbrand” in basalt and the disintegration of aggregate produced from basalt showing such signs

It includes tensile testing

Optics and photonics. Operation microscopes - Requirements and test methods Ingestion-build-83346 BS EN 61189-3-719 is intended1 Scope This document specifies requirements and refers to test methods for operation microscopes used for observation during surgical operation and treatment of patients. It does not apply to accessories, e. g. photographic cameras. NOTE Specific requirements with regard to optical radiation hazards from operation microscopes used in ocular surgery are given in ISO 109362.