LabChem

Silver Nitrate, 0.141N (0.141M) (1mL = 5mg Cl_)

Sodium Hydroxide, 8% w/v, for Calcium, Magnesium

Sodium Hydroxide, 17.5% w/w (5.24N) (5.24M)

Polyseed NX¨, for BOD

Sodium Hydroxide, 24% w/v

Sodium Acetate, 20% w/w, for Iron

Sodium Hydroxide, 0.313N (0.313M)

Silver Sulfate-Sulfuric Acid, for COD

Sodium Potassium Tartrate, 10% w/v, for Nitrogen (Ammonia), Nitrogen (Organic)

Sodium Hydroxide, 12N (12M)

Sodium Hydroxide, 2.0N (2.0M)

Sodium Arsenite, 0.5% w/v, for Residual Chlorine, Chlorine Dioxide

Sodium Chloride, 240g/L, for Sulfate (Contains Hydrochloric Acid)

Potassium Hydroxide, 0.5N (0.5M) in Methanol

Sodium Hydroxide, 21.5% w/w (6.64N) (6.64M)

Sodium Hydroxide, 0.125N (0.125M)