Abrasive grains and crude — Chemical analysis of silicon carbide
This document specifies the chemical analysis of silicon-carbide-based abrasive grains and crudes. It is applicable for the determination of the surface impurities of abrasives grains and the determination of the SiC content of crushed crude when the silicon carbide content is greater than 95 % (mass fraction).
Rubber — Determination of total sulfur content by ion chromatography
This document specifies a method for the determination of the total sulfur content of raw rubber and unvulcanized or vulcanized rubber compounds by ion chromatography following the preparation of a sample solution using either a tubular furnace combustion or an oxygen combustion flask method.
The tubular furnace combustion method is applicable for rubbers with sulfur content less than 0,1 % as it…
Determination of uranium content in samples coming from the nuclear fuel cycle by L-absorption edge ...
This document specifies a method for the determination of uranium concentrations in nitric acid or TBP-DILUANT (for example TBP-kerosene) solutions coming from the nuclear fuel cycle.
The method is applicable
— for process control of solutions, free of suspension, which contain between 10 g/l to 300 g/l uranium, and
— for high accuracy purposes (Safeguards) to nitric acid solutions, free of…
Health informatics — Requirements for medication safety alerts
This document specifies the requirements for medication safety alert systems and the topics which are relevant to alert system vendors. This document applies to clinical decision support systems (CDSSs) whether or not these are medical devices.
This document addresses:
— requirements for terminology used in medication safety alerts;
— requirements for choosing a knowledge base for…
Static VAR compensators (SVC) - Testing of thyristor valves
IEC 61954:2021 RLV contains both the official IEC International Standard and its Redline version. The Redline version is available in English only and provides you with a quick and easy way to compare all the changes between the official IEC Standard and its previous edition.
IEC 61954:2021 defines type, production and optional tests on thyristor valves used in thyristor controlled reactors (…
Static VAR compensators (SVC) - Testing of thyristor valves
IEC 61954:2021 is available as IEC 61954:2021 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.
IEC 61954:2021 defines type, production and optional tests on thyristor valves used in thyristor controlled reactors (TCR), thyristor switched reactors (TSR) and thyristor switched capacitors (TSC)…
High-voltage switchgear and controlgear - Part 1: Common specifications for alternating current swit...
IEC 62271-1:2017+A1:2021 applies to AC switchgear and controlgear designed for indoor and/or outdoor installation and for operation at service frequencies up to and including 60 Hz and having rated voltages above 1 000 V.
This document applies to all high-voltage switchgear and controlgear except as otherwise specified in the relevant IEC standards for the particular type of switchgear and…
Plugs and socket-outlets for household and similar purposes - Part 3-1: Particular requirements for ...
IEC 60884-3-1:2021 applies to fixed or portable socket-outlets for AC only, with or without earthing contact, with a rated voltage greater than 50 V but not exceeding 440 V and a rated current not exceeding 32 A, intended for household and similar purposes, either indoors or outdoors, incorporating USB power supply.
This document defines the safety and EMC requirements for socket-outlets…
Fertilizers and soil conditioners — Determination of total nitrogen by combustion
This document specifies a method for the determination of total nitrogen content in all nitrogen containing fertilizers by combustion method.
NOTE 1 The presence of non-nutritive sources of nitrogen (e.g. chelating agents) causes positive bias to samples being analysed for nutritive nitrogen content. The non-nutritive nitrogen content is subtracted from the total nitrogen value to determine the…
