NEN NPR ISO/IEC GUIDE 21-1 : 2005

Provides methods for the following: a) determination of the degree of correspondence between regional or national standards and relevant International Standards (Clause 4); b) adoption of International Standards as regional or national standards (Clause 5); c) indication of technical deviations which would facilitate immediate recognition of any deviation (Clause 6); d) numbering of regional or national standards that are identical adoptions of International Standards (Clause 7); e) indication of the degree of correspondence between the regional or national standard and the International Standard (Clause 8).