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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Organic reference standard, 2,2',3,3',4,4',5,6-Octachlorobiphenyl (PCB No. 195) 35 µg/ml in isooctane, CIL

Supplier: LGC Standards PROMOCHEM

Organic Standard, 2,2',3,3',4,4',5,6-Octachlorobiphenyl (PCB No. 195) 35 µg/ml in isooctane, Pack type: Glass bottle

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Organic reference standard, 2,2',3,3',4,4',5,5',6-Nonachlorobiphenyl (PCB No. 206) 35 µg/ml in isooctane, CIL

Supplier: LGC Standards PROMOCHEM

Organic Standard, 2,2',3,3',4,4',5,5',6-Nonachlorobiphenyl (PCB No. 206) 35 µg/ml in isooctane, Pack type: Glass bottle

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Elemental analysis standards for particle count analysis, VHG

Supplier: LGC Standards PROMOCHEM

PTP sample for particle count analysis, VHG, 125 ml, VHG

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Flash point standards, Pensky Martens closed cup, ASTM D 93, Supelco®

Supplier: Merck

Procedure A is applicable to distillate fuels - diesels, bio-diesel blends, kerosene, heating oil, turbine fuels and lubricating oils. These UKAS certified standards are specifically designed to be used for regular instrument performance checks.

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Organic reference standards, Vamidothion sulphone (NMIA P1730)

Supplier: LGC Standards PROMOCHEM

Purity estimate obtained by subtraction from 100% of total impurities by HPLC with UV detection, thermogravimetric analysis, Karl Fischer analysis and 1H NMR analysis is 96,1 ± 4,0% mass fraction, (95% coverage interval). Supporting evidence is provided by elemental microanalysis and quantitative NMR using certified triphenylphosphine oxide as internal standard.

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Reference materials, base number standards, in hydrocarbon oil

Supplier: LGC Standards PROMOCHEM

These reference materials are intended for use in the determination of base number (AN) in petroleum products in accordance with ASTM D2896/IP 276 (by potentiometric perchloric acid titration) or ASTM D4739 (by potentiometric titration).

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Chrysene-[D12] 200 µg/ml (98% D), CIL

Supplier: LGC Standards PROMOCHEM

Organic Standard, Chrysene-[D12] 200 µg/ml (98% D), Pack type: Glass bottle

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Tomato leaves - trace elements, NIST-1573A

Supplier: LGC Standards PROMOCHEM

This standard material is intended for use in evaluating the reliability of analytical methods for the determination of major, minor, and trace elements in botanical materials, agricultural food products, and materials of similar matrix.

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Organic reference standard, 2,3,3',4,4',6-Hexachlorobiphenyl (PCB No. 158) 100 µg/ml in isooctane, CIL

Supplier: LGC Standards PROMOCHEM

Organic Standard, 2,3,3',4,4',6-Hexachlorobiphenyl (PCB No. 158) 100 µg/ml in isooctane, Pack type: Glass bottle

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Organic reference standard, 2,2',4,5',6-Pentachlorobiphenyl (PCB No. 103) 35 µg/ml in isooctane, CIL

Supplier: LGC Standards PROMOCHEM

Organic Standard, 2,2',4,5',6-Pentachlorobiphenyl (PCB No. 103) 35 µg/ml in isooctane, Pack type: Glass bottle

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Organic reference standard, 2,3,3',5,5'-Pentachlorobiphenyl (PCB No. 111) 35 µg/ml in isooctane, CIL

Supplier: LGC Standards PROMOCHEM

Organic Standard, 2,3,3',5,5'-Pentachlorobiphenyl (PCB No. 111) 35 µg/ml in isooctane, Pack type: Glass bottle

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Organic reference standard, 2,2',3,4,4',6'-Hexachlorobiphenyl (PCB No. 140) 35 µg/ml in isooctane, CIL

Supplier: LGC Standards PROMOCHEM

Organic Standard, 2,2',3,4,4',6'-Hexachlorobiphenyl (PCB No. 140) 35 µg/ml in isooctane, Pack type: Glass bottle

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Organic reference standard, 2,2',3,6'-Tetrachlorobiphenyl (PCB No. 46) 35 µg/ml in isooctane, CIL

Supplier: LGC Standards PROMOCHEM

Organic Standard, 2,2',3,6'-Tetrachlorobiphenyl (PCB No. 46) 35 µg/ml in isooctane, Pack type: Glass bottle

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Organic reference standard, 3,3',5,5'-Tetrachlorobiphenyl (PCB No. 80) 100 µg/ml in isooctane, CIL

Supplier: LGC Standards PROMOCHEM

Organic Standard, 3,3',5,5'-Tetrachlorobiphenyl (PCB No. 80) 100 µg/ml in isooctane, Pack type: Glass bottle

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Organic reference standard, 2,2',4,5'-Tetrachlorobiphenyl (PCB No. 49) 35 µg/ml in isooctane, CIL

Supplier: LGC Standards PROMOCHEM

Organic Standard, 2,2',4,5'-Tetrachlorobiphenyl (PCB No. 49) 35 µg/ml in isooctane, Pack type: Glass bottle

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Conductivity standard 1000 µS/cm (25 °C; 0,007 mol/L; KCl) for conductivity measurement

Supplier: YSI ENVIRONMENTAL

Conductivity standard 1000 µS/cm (0,007 mol/l; KCl), Reference temperature: 25 °C

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Elemental analysis standards, portland cement (Ivory)

Supplier: LGC Standards PROMOCHEM

These are intended primarily for the evaluation and calibration of methods for analysis of cements and materials of similar matrix.

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Pesticide reference standard, 3,4,5-Trichlorophenol 1,000 µg/ml in acetone

Supplier: AccuStandard

Organic Standard, 3,4,5-Trichlorophenol 1,000 µg/ml in acetone, Pack type: Glass bottle

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Domestic sludge - metals, NIST-2781 standard

Supplier: LGC Standards PROMOCHEM

This standard reference material is intended to use in the evaluation of methods used for the analysis of sludges and other materials of a similar matrix. These are dried and pulverised domestic sludge.

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Calcinated petroleum coke - trace elements

Supplier: LGC Standards PROMOCHEM

This reference standard is intended primarily for use in the calibration of apparatus and the evaluation of techniques employed in the analysis of calcined petroleum coke and other materials with a similar matrix.

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FIA aromatics standards, ASTM D 1319, Supelco®

Supplier: Merck

Fuels Testing Certified Reference Material for the calibration and verification of laboratory instruments used in testing petroleum and derivative products for hydrocarbon types in liquid petroleum products by fluorescent indicator adsorption ASTM D1319.

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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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Anthracene-[D10] 200 µg/ml in isooctane (98% D), CIL

Supplier: LGC Standards PROMOCHEM

Organic Standard, Anthracene-[D10] 200 µg/ml in isooctane (98% D), Pack type: Glass bottle

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Ginkgo biloba (extract), NIST-3247

Supplier: LGC Standards PROMOCHEM

This standard reference material is intended primarily for use in validating analytical methods for the determination of flavonoids, terpene lactones and toxic elements in ginkgo biloba extracts and similar matrices. It can be also used for quality assurance when assigning values to in-house control materials.