Email this pagePrint this page Hardness Indicator - APHA for EDTA Hardness Go back to: Chemical Reagents, pH Indicators and Biological Stains Product Code: C1798 Hazard Rating4-Extreme 3-Severe 2-Moderate 1-Slight 0-Minimal Health1 Flammability0 Reactivity0 100 grams$24.90 each 12 x 100 grams$16.60 each 500 grams$77.33 each 12 x 500 grams$51.55 each MSDS for Hardness Indicator - APHA for EDTA Hardness