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.
NIST® SRM® Trace Elements in Water
Supplier: Merck
Each unit of SRM 1643F consists of a polyethylene bottle containing ~250 ml of acidified water, sealed within an aluminized plastic bag to maintain stability. The SRM simulates the elemental composition of fresh water. The solution contains nitric acid at a volume fraction of ~2%, equivalent to an amount of substance concentration (molarity) of nearly 0,32 mol/L.
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62,4 mg/ml CuSO₄.5H₂O
Supplier: CPACHEM
The colour standard is specially intended for use in testing ChP and monographs. This solution was produced according to the specifications using ChP reagent quality components and water meeting the ChP monograph requirement for purified water.
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Calibration reference materials, alloys
Supplier: PerkinElmer
Perkalloy, three 50,8 mm pieces (596 °C)
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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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Holmium Oxide Solution for Wavelength Control
Supplier: CPACHEM
Holmium oxide solution for wavelength control acc. 2.2.25 of Ph Eur
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Supplier: GRANT INSTRUMENTS
Supplier: BOCHEM
Supplier: VWR Collection
Supplier: OMEGA BIO-TEK
Supplier: DWK Life Sciences
Supplier: Thermo Fisher Scientific
Supplier: VWR Collection
Supplier: Oxford Nanopore Technologies
Supplier: Industrial Physics
Supplier: AAT Bioquest
Supplier: Integra
Supplier: Palbam
Supplier: VWR Collection
Supplier: Integra
Supplier: VWR Collection
Supplier: FACELLITATE
Supplier: NANOENTEK
Supplier: Greiner Bio-One