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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Benzophenone-[D10] 100 µg/ml in n-nonane (98% D)

Supplier: LGC Standards PROMOCHEM

Organic Standard, Benzophenone-[D10] 100 µg/ml in n-nonane (98% D), Pack type: Glass bottle

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Acetic Acid (31)

Supplier: CUSTOM MADE CHEMICALS LAB

The standard is specially intended for use in testing Japanese pharmacopoeia and monographs. This solution was produced according of Japanese pharmacopoeia specifications using reagent quality components and water meeting the Japanese pharmacopoeia monograph requirement for purified water.

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Impurity and API standard, (6RS)-3-[2-[4-(6-fluoro-1,2-benzisoxazol-3-yl)piperidin-1-yl]ethyl]-2,6-dimethyl-6,7,8,9-tetrahydro-4H-pyrido[1,2-a]pyrimidin-4-one

Supplier: LGC Standards PROMOCHEM

Organic Standard, (6RS)-3-[2-[4-(6-fluoro-1,2-benzisoxazol-3-yl)piperidin-1-yl]ethyl]-2,6-dimethyl-6,7,8,9-tetrahydro-4H-pyrido[1,2-a]pyrimidin-4-one

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2,2',3,4,4',5,5'-Heptachlorobiphenyl-[13C12] (PCB No. 180) 40 µg/ml in n-nonane (99% 13C), CIL

Supplier: LGC Standards PROMOCHEM

Organic Standard, 2,2',3,4,4',5,5'-Heptachlorobiphenyl-[13C12] (PCB No. 180) 40 µg/ml in n-nonane (99% 13C), Pack type: Glass bottle

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Metal alloy standards, gray cast iron, CRM

Supplier: LGC Standards PROMOCHEM

Grey cast iron (carbon + sulfur), NIST-334

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Conductivity standard 10000 µS/cm (25 °C; 0,0765 mol/L; KCl) for conductivity measurement

Supplier: YSI ENVIRONMENTAL

Conductivity standard 10 000 µS/cm (0,0765 mol/l; KCl), Reference temperature: 25 °C

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Low alloy steel standard

Supplier: LGC Standards PROMOCHEM

This reference material is intended for use in the evaluation of chemical and instrumental analysis and in calibration of those methods.

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Elemental analysis standards, plastic clay, NIST-98B

Supplier: LGC Standards PROMOCHEM

This standards reference material is intended to use in the determination of constituent elements in clay and material of similar matrix. These powdered clay was air-dried, ball-milled and blended to ensure homogeneity.

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Elemental analysis standards, phosphate rock, western, NIST-694

Supplier: LGC Standards PROMOCHEM

This standard material is intended to use in validating analytical methods and in calibrating instruments used in the analysis of phosphate rock, fertilisers and similar materials.

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Organic reference standard, 2,2',3,3',5,6,6'-Heptachlorobiphenyl (PCB No. 179) 35 µg/ml in isooctane, CIL

Supplier: LGC Standards PROMOCHEM

Organic Standard, 2,2',3,3',5,6,6'-Heptachlorobiphenyl (PCB No. 179) 35 µg/ml in isooctane, Pack type: Glass bottle

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Organic reference standard, 2,2',3,4,4',5,6'-Heptachlorobiphenyl (PCB No. 182) 35 µg/ml in isooctane, CIL

Supplier: LGC Standards PROMOCHEM

Organic Standard, 2,2',3,4,4',5,6'-Heptachlorobiphenyl (PCB No. 182) 35 µg/ml in isooctane, Pack type: Glass bottle

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Organic reference standard, 2,2',4,4',5,5'-Hexachlorobiphenyl (PCB No. 153) 35 µg/ml in isooctane, CIL

Supplier: LGC Standards PROMOCHEM

Organic Standard, 2,2',4,4',5,5'-Hexachlorobiphenyl (PCB No. 153) 35 µg/ml in isooctane, Pack type: Glass bottle

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Organic reference standard, 2,2',3,4,4',5,5',6-Octachlorobiphenyl (PCB No. 203) 35 µg/ml in isooctane, CIL

Supplier: LGC Standards PROMOCHEM

Organic Standard, 2,2',3,4,4',5,5',6-Octachlorobiphenyl (PCB No. 203) 35 µg/ml in isooctane, Pack type: Glass bottle

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Organic reference standard, 2,3,3',4,4',5,5',6-Octachlorobiphenyl (PCB No. 205) 35 µg/ml in isooctane, CIL

Supplier: LGC Standards PROMOCHEM

Organic Standard, 2,3,3',4,4',5,5',6-Octachlorobiphenyl (PCB No. 205) 35 µg/ml in isooctane, Pack type: Glass bottle

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Organic reference standard, 2,2',3,3',4,5'-Hexachlorobiphenyl (PCB No. 130) 35 µg/ml in isooctane, CIL

Supplier: LGC Standards PROMOCHEM

Organic Standard, 2,2',3,3',4,5'-Hexachlorobiphenyl (PCB No. 130) 35 µg/ml in isooctane, Pack type: Glass bottle

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Organic reference standard, 2,2',3,3',4,4'-Hexachlorobiphenyl (PCB No. 128) 100 µg/ml in isooctane, CIL

Supplier: LGC Standards PROMOCHEM

Organic Standard, 2,2',3,3',4,4'-Hexachlorobiphenyl (PCB No. 128) 100 µg/ml in isooctane, Pack type: Glass bottle

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Organic reference standard, 2,2',3,4,4',5,6-Heptachlorobiphenyl (PCB No. 181) 35 µg/ml in isooctane, CIL

Supplier: LGC Standards PROMOCHEM

Organic Standard, 2,2',3,4,4',5,6-Heptachlorobiphenyl (PCB No. 181) 35 µg/ml in isooctane, Pack type: Glass bottle

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Polystyrene film - IR transmission wavelength standards, NIST-1921B

Supplier: LGC Standards PROMOCHEM

NIST-1921B, Polystyrene film - IR transmission wavelength

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Wavelength Calibration Solution for ICP-OES

Supplier: CUSTOM MADE CHEMICALS LAB

500 ml solution contains 50 mg/L Al, As, Ba,Cd, Co, Cr, Cu, Mn, Mo, Ni, Pb, Se, Sr, Zn and 500 mg/L K in 5% HNO₃.

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Estuarine sediment standard - metals, NIST-1646A

Supplier: LGC Standards PROMOCHEM

NIST-1646A, estuarine sediment - metals, : N/A

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Environmental standards, DSJ PCB mixture, CIL

Supplier: LGC Standards PROMOCHEM

DSJ PCB mixture, unlabeled PCBs, CIL, 1 ml in isooctane, : N/A

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4-Chlorobiphenyl-[13C12] (PCB No. 3) 40 µg/ml in n-nonane (99% 13C), CIL

Supplier: LGC Standards PROMOCHEM

Organic Standard, 4-Chlorobiphenyl-[13C12] (PCB No. 3) 40 µg/ml in n-nonane (99% 13C), Pack type: Glass bottle

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Dibutyl phthalate-[ring-D4] 100 µg/ml in n-nonane (98% D)

Supplier: LGC Standards PROMOCHEM

Organic Standard, Dibutyl phthalate-[ring-D4] 100 µg/ml in n-nonane (98% D), Pack type: Glass bottle

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Organic reference standard, 2,2',3,3',4,4',5,6-Octachlorobiphenyl (PCB No. 195) 100 µg/ml in isooctane, CIL

Supplier: LGC Standards PROMOCHEM

Organic Standard, 2,2',3,3',4,4',5,6-Octachlorobiphenyl (PCB No. 195) 100 µg/ml in isooctane, Pack type: Glass bottle

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Organic reference standard, 2,2',3,3',4,4',6,6'-Octachlorobiphenyl (PCB No. 197) 35 µg/ml in isooctane, CIL

Supplier: LGC Standards PROMOCHEM

Organic Standard, 2,2',3,3',4,4',6,6'-Octachlorobiphenyl (PCB No. 197) 35 µg/ml in isooctane, Pack type: Glass bottle

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Combined density and refractometry standards

Supplier: Mettler - Toledo

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

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Reference materials, metals in biodiesel Standard, VHG

Supplier: LGC Standards PROMOCHEM

This solution is intended for use as a calibration or reference standard for the analysis of these analytes in biodiesel or related organic matrices according to ASTM D6751. Sulfur is present in the raw materials and is not certified.

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Reference materials, acid number standards, in hydrocarbon oil, VHG

Supplier: LGC Standards PROMOCHEM

These reference materials are intended for use in the determination of acid number (AN) in petroleum products in accordance with ASTM D664/IP 177 (by potentiometric titration) or ASTM D974 (by colour-indicator titration).

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Residual fuel oil - sulphur, NIST-1622E reference material

Supplier: LGC Standards PROMOCHEM

This reference standards are intended for use in the calibration of instruments and the evaluation of methods used in the determination of total sulphur in fuel oils and materials of similar matrix.

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Reference standards, surface water - trace metals

Supplier: LGC Standards PROMOCHEM

This reference standard is intended for daily use in conjunction with measurement of elements in surface waters. The water solution contains 45 elements with concentrations traceable to
ultrapure metals or stoichiometrically well-defined substances.