Projekta Nr.ISO 3401:1991
Nosaukums<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>
Reģistrācijas numurs (WIID)8703
Darbības sfēra<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>
StatussStandarts spēkā
ICS grupa65.160