Combined density and refractometry standards

These combined reference standards are intended to reduce uncertainty, eliminate time-consuming and error prone sample transfer and facilitate fully automatic performance verification.

Frequently Bought Together

pH buffer solutions

: Mettler - Toledo

Buffer solutions, ready to use, referenced at 20 °C, Certipur®, Supelco®

: Merck

Water density / refractive index combined standard (9 mL) 1 * 1 items

: Mettler - Toledo

Potassium chloride 3 mol/l (3 N) in aqueous solution, Supelco®

: Merck

VWR®, Nitrile Gloves

: VWR Collection

Starch, soluble ISO analytical reagent, Millipore®

: Merck

VWR® AVS TITRINORM Buffer Solutions, 20 °C

: VWR Chemicals

Nitrate CRM, standard solutions, Supelco®

: Merck

VWR®, Primary colour solutions, Reagent Ph. Eur.

: VWR Chemicals

Hexamethylenetetramine ≥99.0% for synthesis, Sigma-Aldrich®

: Merck

Silver nitrate 0.25 mol/l (0.25 N) in aqueous solution Reag. Ph. Eur. 1078301

: VWR Chemicals

n-Dodecane

: Mettler - Toledo

VWR®, Pasteur Pipettes

: VWR Collection

Disodium sulphide nonahydrate ≥98.0% ACS, Fluka™

: Honeywell Chemicals

Pharmaceutical secondary standard, Atropine Sulfate, (CRM), Supelco®

: Merck

Supelco® Colour Reference Solutions, set of colours Y, ampoules of 2 ml, Merck

: Merck

2-Bromo-6-methoxynaphthalene, pharmaceutical impurity standard, Supelco®

: Merck