Indicator test strips, pH. Range 1 to 14 Chart readings pH1,2,3,4,5,6,7,8,9,10,11,12,13 & 14 Made from non bleed test paper mounted on plastic wand. Includes comparison chart.
Indicator test strips, pH. Range 1 to 14 Chart readings pH1,2,3,4,5,6,7,8,9,10,11,12,13 & 14 Made from non bleed test paper mounted on plastic wand. Includes comparison chart.