Normas ISO

Water quality -- Determination of free chlorine and total chlorine-- Part 3: Iodometric titration method for the determination of total chlorine

Water quality -- Determination of free chlorine and total chlorine-- Part 2: Colorimetric method using N,N-diethyl-1,4-phenylenediamine, for routine control purposes

Water quality -- Determination of free chlorine and total chlorine-- Part 1: Titrimetric method using N,N-diethyl-1,4-phenylenediamine

Tool shanks with 7/24 taper for automatic tool changers-- Part 2: Retention knobs for shanks Nos. 40, 45 and 50 -- Dimensions and mechanical characteristics

Tool shanks with 7/24 taper for automatic tool changers-- Part 1: Shanks Nos. 40, 45 and 50 -- Dimensions

Adhesives with solvents for assembly of PVC-U pipe elements -- Characterization-- Part 1: Basic test methods