Information technology. Digitally recorded media for information interchange and storage. Test method for the estimation of the archival lifetime of optical media

Collection of ancillary data

The numeric identifier may also be used in communication protocols and for visual identification by human operators

Manufacturers of gas fired boilers

a) The material and dimensions of valve fittings for compressed gas cylinders used for breathing apparatus other than for medical purposes

provides guidance on design principles for preventing the spread of fire and indicates the fire precautions necessary in these buildings

NOTE 2: This standard is the only guidance document on implementing ISO 45001 and replaces BS 18004

ISO 15871 is applicable to:

wire conforming to the latest edition of British Standard S 203 ought to be used

steel grade s450 was deleted and steel grades s460 and s500 were added

20346 or 20347 as appropriate

and to the testing of automatic electrical air flow

Protection against external influences