"Hach"

Supplier: Hach

Buffer for hardness and chelant determination by titration, pH 10.1 ± 0.1 at 20°C

Supplier: Hach

Stablcal® Turbidity Standard for all Turbidimeters.

Supplier: Hach

For low and ultra-low range silica determination by the Heteropoly Blue method

Supplier: Hach

For determination of alkalinity by Digital Titrator titration.

Supplier: Hach

Multiple uses, including preparation of turbidity sample cells.

Supplier: Hach

This colorimeter is a portable, rugged, and convenient instrument, ideally suited for in-the-field analysis.

Supplier: Hach

Indicator for determination of total hardness and chelants by titration

Supplier: Hach

This equivalent standard is prepared with stabilized sodium thiosulfate, since sulphite is not a stable in solution.

Supplier: Hach

For total chromium determination by the alkaline hypobromite oxidation method.

Supplier: Hach

DPD chlorine, low range, 0 to 2 mg/L as Cl₂.

Supplier: Hach

Gelex Secondary Standards Kit, for 2100P and 2100Q Series Portable Turbidimeters (includes 1 sealed vial each, 0 to 10 NTU, 10 to 100 NTU, 100 to 1000 NTU).

Supplier: Hach

Stablcal® Turbidity Standards for all turbidimeters.

Supplier: Hach

For accuracy checks in chlorine determinations.

Supplier: Hach

Turbidity Standard, Stablcal® Turbidity Standards Calibration Kit, 0.1 NTU, 20 NTU, 200 NTU, 1000 NTU, 4000 NTU, 7500 NTU, Type: Formazine, 6× ampoules

Supplier: Hach

Stablcal® turbidity standards for all turbidimeters. USEPA accepted for calibration purposes. Stablcal® stabilized formazine turbidity standards are true formazine dilutions developed for use in any turbidimeter.

Supplier: Hach

These 'Test N Tube' are used for the determination of nitrogen by the persulfate digestion method.