Supplier: Hach

COD standard solution (NIST), 300 mg/l

Supplier: Hach

Hardness standard solution, 0,50 mg/l as CaCO₃ traceable to NIST.

Supplier: Hach

For accuracy checks in phosphate (phosphorus) determinations

Supplier: Hach

Standard solution for accuracy checks in cobalt determinations.

Supplier: Hach

Standard solution for accuracy checks in cadmium determinations.

Supplier: MACHEREY-NAGEL

Standards for photometric test Kits, NANOCONTROL

Supplier: Hach

For accuracy checks in nitrite determinations.

Supplier: Hach

Control standard for nitrate determination, 25 mg/l as NO3

Supplier: Hach

Standard solution for accuracy checks in phosphorus determinations.

Supplier: Hach

These mixed standards are ready to use with no dilutions required. It include standards for determination of copper, iron and manganese.

Supplier: Hach

Standard solution for accuracy checks in phosphate (phosphorus) determinations.

Supplier: Hach

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

Supplier: Hach

These mixed standards are ready to use with no dilutions required. Includes standards for both total hardness and calcium hardness determination.

Supplier: Hach

Used for determination of sulphite by burette iodometric titration.

Supplier: Hach

Standard solution for accuracy checks in carbon dioxide determinations (Potassium hydrogen phthalate solution).

Supplier: Hach

Cobalt chloride solution for spectrophotometer linearisation.

Supplier: Hach

For accuracy checks in quaternary ammonium compound (QAC) determinations.

Supplier: Hach

Standard solution for accuracy checks in potassium determinations.

Supplier: Hach

TCMP - 2-chloro-6 (trichloromethyl) pyridine (N-Serve), coated on an inert substrate.

Supplier: Hach

These mixed standards are ready to use, no dilutions are required. They contain BOD, COD and TOC.

Supplier: Hach

Standard solution for accuracy checks in nickel determinations.

Supplier: Hach

Standard solution for accuracy checks in molybdenum determinations.

Supplier: Hach

For determination of ammonia and total kjeldahl nitrogen by the nessler method. Solutions are available in self-contained dropping bottle.

Supplier: Hach

For accuracy checks in chlorine determinations. Lot specific concentration displayed on label.

Supplier: Hach

Sada sekundárních gelových standardů SpecCheck, 0 - 2 mg/l Cl₂, Pro testovací kit(y): Chlorine (DPD) LR, 4 Vials

Supplier: Hach

Standard solution for accuracy checks in sulfate determinations.

Supplier: Hach

These are used as part of the standard kit for both APA 6000 ammonia and ammonia/monochloramine analyser instruments.

Supplier: Lovibond

Reference standards are designed to check the accuracy and the reliability of the results.

Supplier: Hach

These mixed standards are ready to use, no dilutions are required. They contain ammonia nitrogen, nitrate nitrogen, COD, phosphate, sulphate and TOC.

Supplier: Hach

For accuracy checks in detergents (surfactants) determinations.