Tel ： +8621-51877896
Fax ： +8621-51685598
Email：sales@okpure.com
Web ： www.okpure.com
ASTM CAP/ NCCLS American Society for Testing and Materials
Standard Specifications for Reagent Water
*The measurement of pH in Type I, II, III reagent water has been eliminated because these grades of water do not contain constituents in sufficient quantity to alter pH.
