Masks Intended for Working Environments — Attestation Document
This document establishes the quality and performance requirements of masks intended for use in a working environment, whether reusable or single use, with or without a removable filter.
NOTE — Wearing these attested masks is part of a series of measures for the prevention of the spread of COVID 19 in the workplace.
As a filtering barrier, the mask can protect the immediate environment of the…
Masques destinés aux milieux de travail — Fascicule d’attestation
Le présent fascicule établit les exigences de qualité et de performance des masques destinés à un usage en milieu de travail, réutilisables ou à usage unique, avec ou sans filtre amovible.
NOTE — Le port de ces masques attestés fait partie d’un ensemble de mesures de prévention de la propagation de la COVID 19 en milieu de travail.
Comme barrière filtrante, le masque peut protéger l’…
Low-voltage fuses - Part 5: Guidance for the application of low-voltage fuses
IEC TR 60269-5:2014+A1:2020 serves as an application guide for low-voltage fuses, shows how current-limiting fuses are easy to apply to protect today's complex and sensitive electrical and electronic equipment. This guidance specifically covers low-voltage fuses up to 1 000 V a.c. and 1 500 V d.c. designed and manufactured in accordance with IEC 60269 series. This guidance provides important…
Solderless connections - Part 7: Spring clamp connections - General requirements, test methods and p...
IEC 60352-7:2020 is available as IEC 60352-7:2020 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.
IEC 60352-7:2020 is applicable to spring clamp connections made with stripped wire without further preparation:
- solid conductors of 0,32 mm to 3,7 mm nominal diameter (0,08 mm2 to 10 mm2 cross‑…
Information technology — Coding of audio-visual objects — Part 12: ISO base media file format
This document specifies the ISO base media file format, which is a general format forming the basis for a number of other more specific file formats. This format contains the timing, structure, and media information for timed sequences of media data, such as audio-visual presentations.
Essential oil of matricaria [Matricaria chamomilla L. syn. Chamomilla recutita (L.) Rauschert]
This document specifies certain characteristics of the essential oil of matricaria [Matricaria chamomilla L. syn. Chamomilla recutita (L.) Rauschert] in order to facilitate assessment of its quality.
Copper, lead and zinc sulfide concentrates — Determination of transportable moisture limits — Flow-t...
This document specifies a flow-table method for the determination of the transportable moisture limit (TML) of copper, lead and zinc sulfide concentrates, which can liquefy during transport.
It is applicable to the determination of the TML of concentrates containing 10 % to 80 % (mass fraction) of lead, 10 % to 65 % (mass fraction) of zinc or 10 % to 55 % (mass fraction) of copper and is…
Huile essentielle de matricaire [Matricaria chamomilla L. syn. Chamomilla recutita (L.) Rauschert]
Le présent document spécifie certaines caractéristiques de l'huile essentielle de matricaire [Matricaria chamomilla L. syn. Chamomilla recutita (L.) Rauschert] destinées à faciliter l'appréciation de sa qualité.
