"Certified Reference Materials, KLEN"

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Azure B certified

Supplier: Abcam

Highly sensitive spectrofluorometric titrant for chymotrypsin, trypsin, thrombin, and factor Xa. Produces 4-methylumbelliferone with Ex/Em - 365/445 nm.

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Color-WP, certified reference material (CRM), Supelco®

Supplier: Merck

Colour standard, Color-WP, Supelco®

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Colour calibration standard solutions, Pt-Co, Supelco®

Supplier: Merck

Colour standard, 100 Pt-Co, Supelco®

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UV/Visible standards, Supelco®

Supplier: Merck

For spectrophotometer calibration according to Ph. Eur.

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UV-Vis certified calibration standards

Supplier: VARIAN

These UV-Visible calibration standards and kits provide an inexpensive and time-saving solution for calibrating and qualifying UV-Vis instrumentation.

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VWR®, UV/Visible spectroscopy wavelength standards

Supplier: VWR Chemicals

Wavelength standards (certified at 0,1; 0,2; 0,5; 1 and 2 nm slit widths) packed in six permanently sealed UV cuvettes or 100 ml amber bottles.

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Certified colour reference standards

Supplier: Lovibond Tintometer

For routine calibration of colorimeters and verification of test data.

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Certified colour reference standards for spectrophotometers

Supplier: Thermo Fisher Scientific

These colour reference standards can be used with UV-Vis spectroscopy.

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Standards for spectrophotometer calibration, Supelco®

Supplier: Merck

Standard solutions are used for the calibration of spectrophotometers.

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Colour Reference solution, CertiPUR®, Supelco®

Supplier: Merck

The colour reference solution can be used in visual comparison or as part of a calibration of colorimeters and spectrophotometer for colour comparison. The solution can be used to prepare reference solution with different Hazen values.

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Colour Reference Solutions BY7 acc. to Ph, Supelco®

Supplier: Merck

Color Reference Solutions BY7, Supelco®

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Supelco® Colour Reference Solutions, set of colours B, BY, Y, GY, R, ampoules of 2 ml, Merck

Supplier: Merck

The kit contains set of brown(83951), yellow (83883), red (87448), greenish-yellow (82995), and brownish-yellow (86293) colour reference standards. The solutions are produced from three primary metal salt solutions of ferric(III) chloride, cobalt(II) chloride, and copper(II) sulfate pentahydrate, in accordance with chapter 2.2.2 ′Degree of colouration of liquids′ of the European Pharmacopoeia (Ph. Eur.).

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Standard solution set (potassium dichromate solutions) for calibration of UV/Visible spectrophotometers

Supplier: VWR Chemicals

A set for linearity check of the absorbance of spectrophotometers.

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Vitroids™ Blank 0 CFU, certified reference material

Supplier: Merck

Certified Reference Microorganisms

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Verification standard for Spectroquant® Multy and Spectroquant® Move 100 colorimeters, Supelco®

Supplier: Merck

Designed to reassure the user about the accuracy and the reliability of Spectroquant® Multy and Spectroquant® Move 100 colorimeters.

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

Supplier: Merck

The kit contains a set of seven brownish yellow colour reference standards (identified sequentially from BY1 to BY7) and a 3.7% hydrogen chloride solution in water. The solutions are produced from three primary metal salt solutions of ferric(III) chloride, cobalt(II) chloride, and copper(II) sulfate pentahydrate, in accordance with chapter 2.2.2 ′Degree of colouration of liquids′ of the European Pharmacopoeia (Ph. Eur.).