COD calibration standard solutions (NIST traceable)

: Hach

COD calibration standard solutions (NIST traceable)

: Hach

Hach Chemistries, Reagents and Standards

Frequently Bought Together

VWR®, Magnetic stirring bars, cylindrical

: VWR Collection

VWR® AVS TITRINORM Buffer Solutions, 20 °C

: VWR Chemicals

Glass beads

: Merck

VWR®, Short Thread Vials ND9

: VWR Collection

Sodium hydroxide 2 mol/l (2 N) in aqueous solution, AVS TITRINORM volumetric solution

: VWR Chemicals

2,3,5-Triphenyltetrazolium chloride (TTC), TECHNICAL

: VWR Chemicals

Tetrahydrofuran ≥99.9% unstabilised, HiPerSolv CHROMANORM® for HPLC

: VWR Chemicals

VWR® ARISTAR®, Nitrite Standard Solution, 200 mg/L Nitrite in Water (from NaNO₂) Standard for Ion Chromatography

: VWR Chemicals

Ethanol absolute ≥99.8%, AnalaR NORMAPUR® Reag. Ph. Eur., ACS analytical reagent

: VWR Chemicals

Reagents for Karl Fischer titrations, Aquastar®, Supelco®

: Merck

Nitrogen (total) CRM, Standard Solutions, Supelco®

: Merck

Wipes for delicate tasks, Kimtech™ Science

: KIMBERLY CLARK

COD photometric test kits, Test’n Tube

: Hach

Ubbelohde viscometers (DIN)

: SI Analytics

Orthophosphoric acid 85-90% for HPLC, Fluka™

: Honeywell Chemicals

Reagents for water determination by the Coulometric Titration Karl Fischer method, Hydranal™

: Honeywell Chemicals

pH Buffer solutions

: Hach

General purpose thermometers, simple type

: Amarell