Ergonomic requirements for office work with visual display terminals (VDTs) - General introduction1 Scope This part of ISO 9241 introduces the multipart standard on ergonomic requirements for the use of visual display terminals for office tasks; provides guidelines for a user performance approach; gives an overview of all parts of ISO 9241 currently published and of the anticipated content of those in preparation; provides some guidance on how to use ISO 9241; describes how conformance to ISO 9241 should be reported. For the purposes of ISO 9241,

Environmental and endurance testing method helps in ensuring the durability and sustainability of these displays in different climatic conditions

The method is suitable for surface water

PD IEC TS 62749 on characteristics of electricity supplied by public networks is relevant to:

8 % and 6 %)

and for protected situations (Class P)

specified in IETF/RFC 3280 for different types of certificates

but the primary and intended users of audio description are blind persons or persons with low vision and their friends and family

The fire resistance of loadbearing floors in conjunction with a suspended ceiling can also be assessed by using tests according to EN 1365‑2

The flow and temperature of water in pipelines and plumbing fixtures are controlled by water valves

A format has been developed which defines a directory structure and the exchange information as ASCII files

rectangular or any other shape with sealed (rubber ring or solvent cement) or unsealed joints

Defining project breakdown structures