
Drop Test, Hardness (total), EDTA, 1 drop = 0.5 ppm

Colorimeter Reagent Pack, Hardness (total), Calmagite, 0-500 ppm
Chlorine Reference Standard Kit: 0 / 0.2 /1.0 Mg/L For Use With Md 100, Sc450 & Md 200 Colorimeters, Ea/1
Lovibond® Chlorine Reference Standard Kit: 0 / 0.2 /1.0 mg/l, for use with MD 100, SC 450 & MD 200 Colorimeters (1 per EA)
Manufacturer: Lovibond Tintometer Group
Chlorine Reference Standard Kit: 0 / 0.2 /1.0 Mg/L For Use With Md 100, Sc450 & Md 200 Colorimeters, Ea/1 is available to buy in increments of 1