Project No.ISO 3401:1991
Title<p>Specifies a direct and a indirect method. Describes the principle, the reagents, the apparatus, the sampling, the test procedures, the expression of results, and the contents of the test report. This second edition cancels and replaces the first edition (1977).</p>
Registration number (WIID)8703
Scope<p>Specifies a direct and a indirect method. Describes the principle, the reagents, the apparatus, the sampling, the test procedures, the expression of results, and the contents of the test report. This second edition cancels and replaces the first edition (1977).</p>
StatusStandarts spēkā
ICS group65.160