Vacuum technology. Dimensions of knife-edge flangesWhat is ISO 3669 about? ISO 3669 discusses vacuum technology. Vacuum technology is a method used to evacuate air from a closed volume by creating a pressure differential from the closed volume to some vent, the ultimate vent being the open atmosphere. ISO 3669 specifies the dimensions of fixed or rotatable bolted knife edge flanges used in vacuum systems for pressures ranging from atmospheric to as low as 1011 Pa. Who is ISO 3669 for? ISO 3669 on

BS EN 17125 provides advice and guidance for installers and maintainers of domestic spas/whirlpool spas/hot tubs

or analogue control

The tests provided also guide you in properly assessing the converter and machine to produce reliable results

e) IEC 6043961439-1 (Low-voltage switchgear and controlgear assemblies)

BS EN IEC 61333 is an international standard that discusses magnetic components

BS EN BS QC 960501 on quality assessment of electromechanical switches  is useful for:

Transverse conversion transfer loss (TCTL)

and with special regard to variations of electrical and mechanical characteristics

This document is primarily intended for those who are required to meet internationally standardized methods for the measurement of magnetic field sensitivity under laboratory conditions

the RTTT Application Identifier

This part of ISO/IEC 13066 recognizes the fundamental role of operating systems and application programming interfaces (APIs)

tape and solid-state based media devices such as CD players