Information technology. Open distributed processing. Reference model: Foundations1 Scope This Recommendation International Standard covers the concepts which are needed to perform the modelling of ODP systems (see clauses 6 to 14), and the principles of conformance to ODP systems (see 15). The concepts defined in clauses 6 to 14 are used in the reference model of open distributed processing to support the definitions of: a) the structure of the family of standards which are subject to the reference model; b) the structure of

inter-organizational agreements

Once this European Standard is published in the EU Official Journal (OJEU) under Directive 97/23/EC

for safety in use and during cleaning

Added a new Annex for the sampling procedure

The thickness relation of the properties has been simplified

BS EN 61988-1:2011 includes some technical changes with respect to EN 61988-1:2003

Respiratory Protection Equipment manufacturers

flushing and disinfection of services supplying water for domestic purposes within buildings and their curtilages

by use of a barrier pipe

specifies the requirements for alarm transmission systems utilizing dedicated alarm transmission paths which are additional to those specified in EN 50136-1-1

colourants

leakage from equipment and the choice of anaesthetic technique