None Bleading 4 bands strip for greater accuracy accuracy: 1 pH unit suitable for ASTM 7968 suitable for ASTM 7979 suitable for DIN 38407-42 suitable for EPA 1613 suitable for EPA 200.7 suitable for EPA 200.8 suitable for ISO 21675 2019 suitable for SM 5210
Description
pH test strips , none bleeding , the best quality , high accuracy , range 0-14