You searched for: Standards

Meeting regulations in any industry, standards are essential for periodically checking the accuracy of equipment pieces. By comparing against the known values, output readings detect errors present and inform personnel adjustments are required. Once the settings of the manual or automatic instruments have returned to zero, the reestablished conditions will yield optimal working performance. Calibrating with concentrated standards eliminates the possibility that environmental changes will induce instrumental miscalculation when accuracy matters most.

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Potassium Dichromate Solution for Absorbance Control

Supplier: CPACHEM

2×10 ml Potassium dichromate solution for absorbance control 235 - 350 nm and 6×10 ml

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Calibration standards for osmometers

Supplier: GONOTEC

Calibration standard, Osmolality: 850 mOsmol/kg, 10× 1 ml

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Calibration reference materials, alloys

Supplier: PerkinElmer

Nickel, three 50,8 mm pieces (354 °C)

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Conductivity standard 2000 µS/cm (25 °C; 1000 ppm; NaCl) in aqueous solution

Supplier: RICCA CHEMICAL

Conductivity standard 2000 µS/cm (1000 ppm; NaCl) in aqueous solution, 2000 µS/cm, Reference temperature: 25 °C

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EP Reference Solution BY2, Brownish-Yellow Reference Standard

Supplier: RICCA CHEMICAL

EP reference solution BY2, Brownish-yellow standard solution, Glass bottle, amber

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Pharmaceutical residual solvents, USP <467> singles

Supplier: Restek

The United States Pharmacopeia (USP)<467> residual solvents is a widely used compendial method intended for identifying and quantifying residual solvents in drug substances, drug products, and excipients.

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EP Reference Solution BY4, Brownish-Yellow Reference Solution

Supplier: RICCA CHEMICAL

EP Reference solution BY4, brownish-yellow reference solution, Glass bottle, amber

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Standards and test mixes for liquid chromatography

Supplier: Restek

Linear detector responses to concentration variations are an important part of operation qualification (OQ) for LC instruments. Kit of five aqueous solutions of caffeine can be used to generate simple plots of UV response versus concentration.