Time relays for industrial and residential use - Requirements and tests1 Scope This part of the IEC 61812 applies to time relays for industrial applications (e. g. control, automation, signal and industrial equipment). It also applies to time relays for automatic electrical controls for use in, on, or in association with equipment for residential and similar use. The term relay as used in this standard comprises all types of relays with specified time functions, other than measuring relays. NOTE Depending on the field of

BS EN 14989-1:2007 covers vertical air/flue terminals with metal flue ducts for chimneys for roomsealed heating applications meaning the combination of flue duct and air supply duct needed for the correct functioning of a C6 roomsealed appliance

BS EN 1395-5:2018 includes some technical changes with respect to BS EN 1395‑5:2007

5 also provides users with a step-by-step procedure for the method

the tempering valves are not intended to control the temperature at the point of use

9) that should be used as a reference if no other conditions are agreed at the time of purchase

The skein method provides two forms of measurement which are of manual and automatic types

ISO 5725‑4 applies only to the cases where it is sufficient to estimate bias on one property at a time

BS EN 2465:2019 supersedes BS EN 2465:2007

earth currents

to provide authentication and trust

This document specifies methods for determining stage-fall-discharge relationships for a stream reach where variable backwater occurs either intermittently or continuously

Size-exclusion chromatography (SEC)