Calcium Hardness

Bis(2,4-diisopropylphenyl) phenyl phosphate, 1.2ml x 50ug/ml, toluene

2,2',3,3',4,4',5',6-Octachlorobiphenyl, neat, Solvent-neat, Unit 5mg, # of units-1, Cas.no. 42740-50-1

Arsenic (As)