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 re-established conditions will yield optimal working performance. Calibrating with concentrated standards eliminates the possibility that environmental changes will induce instrumental miscalculation when accuracy matters most.

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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Organic reference standard, 3,3',4,5,5'-Pentachlorobiphenyl (PCB No. 127) 100 µg/ml in isooctane, CIL

Supplier: LGC Standards PROMOCHEM

Organic Standard, 3,3',4,5,5'-Pentachlorobiphenyl (PCB No. 127) 100 µg/ml in isooctane, Pack type: Glass bottle

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Organic reference standard, 2,3',4,5',6-Pentachlorobiphenyl (PCB No. 121) 35 µg/ml in isooctane, CIL

Supplier: LGC Standards PROMOCHEM

Organic Standard, 2,3',4,5',6-Pentachlorobiphenyl (PCB No. 121) 35 µg/ml in isooctane, Pack type: Glass bottle

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Organic reference standard, 2,3',4,4',5'-Pentachlorobiphenyl (PCB No. 123) 35 µg/ml in isooctane, CIL

Supplier: LGC Standards PROMOCHEM

Organic Standard, 2,3',4,4',5'-Pentachlorobiphenyl (PCB No. 123) 35 µg/ml in isooctane, Pack type: Glass bottle

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Organic reference standard, 2,3',4,5,5'-Pentachlorobiphenyl (PCB No. 120) 35 µg/ml in isooctane, CIL

Supplier: LGC Standards PROMOCHEM

Organic Standard, 2,3',4,5,5'-Pentachlorobiphenyl (PCB No. 120) 35 µg/ml in isooctane, Pack type: Glass bottle

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Organic reference standard, 2,2',3,4,4'-Pentachlorobiphenyl (PCB No. 85) 35 µg/ml in isooctane, CIL

Supplier: LGC Standards PROMOCHEM

Organic Standard, 2,2',3,4,4'-Pentachlorobiphenyl (PCB No. 85) 35 µg/ml in isooctane, Pack type: Glass bottle

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Organic reference standard, 2,2',3,4',5'-Pentachlorobiphenyl (PCB No. 97) 35 µg/ml in isooctane, CIL

Supplier: LGC Standards PROMOCHEM

Organic Standard, 2,2',3,4',5'-Pentachlorobiphenyl (PCB No. 97) 35 µg/ml in isooctane, Pack type: Glass bottle

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Organic reference standard, 2,2',3,4,5',6-Hexachlorobiphenyl (PCB No. 144) 35 µg/ml in isooctane, CIL

Supplier: LGC Standards PROMOCHEM

Organic Standard, 2,2',3,4,5',6-Hexachlorobiphenyl (PCB No. 144) 35 µg/ml in isooctane, Pack type: Glass bottle

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Organic reference standard, 2,2',3,5,5',6-Hexachlorobiphenyl (PCB No. 151) 100 µg/ml in isooctane, CIL

Supplier: LGC Standards PROMOCHEM

Organic Standard, 2,2',3,5,5',6-Hexachlorobiphenyl (PCB No. 151) 100 µg/ml in isooctane, Pack type: Glass bottle

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Organic reference standard, 2,3,3',4,4',5',6-Heptachlorobiphenyl (PCB No. 191) 35 µg/ml in isooctane, CIL

Supplier: LGC Standards PROMOCHEM

Organic Standard, 2,3,3',4,4',5',6-Heptachlorobiphenyl (PCB No. 191) 35 µg/ml in isooctane, Pack type: Glass bottle

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Organic reference standard, 2,2',3,4,5,5',6-Heptachlorobiphenyl (PCB No. 185) 35 µg/ml in isooctane, CIL

Supplier: LGC Standards PROMOCHEM

Organic Standard, 2,2',3,4,5,5',6-Heptachlorobiphenyl (PCB No. 185) 35 µg/ml in isooctane, Pack type: Glass bottle

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Organic reference standard, 2,3,3',4,5,5'-Hexachlorobiphenyl (PCB No. 159) 100 µg/ml in isooctane, CIL

Supplier: LGC Standards PROMOCHEM

Organic Standard, 2,3,3',4,5,5'-Hexachlorobiphenyl (PCB No. 159) 100 µg/ml in isooctane, Pack type: Glass bottle

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Organic reference standard, 2,3,3',4,4',5'-Hexachlorobiphenyl (PCB No. 157) 35 µg/ml in isooctane, CIL

Supplier: LGC Standards PROMOCHEM

Organic Standard, 2,3,3',4,4',5'-Hexachlorobiphenyl (PCB No. 157) 35 µg/ml in isooctane, Pack type: Glass bottle

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Organic reference standard, 2,3,3',4,5'-Pentachlorobiphenyl (PCB No. 108) 35 µg/ml in isooctane, CIL

Supplier: LGC Standards PROMOCHEM

Organic Standard, 2,3,3',4,5'-Pentachlorobiphenyl (PCB No. 108) 35 µg/ml in isooctane, Pack type: Glass bottle

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Organic reference standard, 2,3,3',4,6-Pentachlorobiphenyl (PCB No. 109) 35 µg/ml in isooctane, CIL

Supplier: LGC Standards PROMOCHEM

Organic Standard, 2,3,3',4,6-Pentachlorobiphenyl (PCB No. 109) 35 µg/ml in isooctane, Pack type: Glass bottle

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Organic reference standard, 2,2',4,4',6-Pentachlorobiphenyl (PCB No. 100) 35 µg/ml in isooctane, CIL

Supplier: LGC Standards PROMOCHEM

Organic Standard, 2,2',4,4',6-Pentachlorobiphenyl (PCB No. 100) 35 µg/ml in isooctane, Pack type: Glass bottle

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Organic reference standard, 2,2',4,5,6'-Pentachlorobiphenyl (PCB No. 102) 35 µg/ml in isooctane, CIL

Supplier: LGC Standards PROMOCHEM

Organic Standard, 2,2',4,5,6'-Pentachlorobiphenyl (PCB No. 102) 35 µg/ml in isooctane, Pack type: Glass bottle

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Organic reference standard, 2,2',4,6-Tetrachlorobiphenyl (PCB No. 50) 35 µg/ml in isooctane, CIL

Supplier: LGC Standards PROMOCHEM

Organic Standard, 2,2',4,6-Tetrachlorobiphenyl (PCB No. 50) 35 µg/ml in isooctane, Pack type: Glass bottle

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Organic reference standard, 2,2',4,5'-Tetrachlorobiphenyl (PCB No. 49) 100 µg/ml in isooctane, CIL

Supplier: LGC Standards PROMOCHEM

Organic Standard, 2,2',4,5'-Tetrachlorobiphenyl (PCB No. 49) 100 µg/ml in isooctane, Pack type: Glass bottle

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Organic reference standard, 2,2',6,6'-Tetrachlorobiphenyl (PCB No. 54) 35 µg/ml in isooctane, CIL

Supplier: LGC Standards PROMOCHEM

Organic Standard, 2,2',6,6'-Tetrachlorobiphenyl (PCB No. 54) 35 µg/ml in isooctane, Pack type: Glass bottle

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Organic reference standard, 2,2',6,6'-Tetrachlorobiphenyl (PCB No. 54) 100 µg/ml in isooctane, CIL

Supplier: LGC Standards PROMOCHEM

Organic Standard, 2,2',6,6'-Tetrachlorobiphenyl (PCB No. 54) 100 µg/ml in isooctane, Pack type: Glass bottle

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Organic reference standard, 2,3',4,5-Tetrachlorobiphenyl (PCB No. 67) 35 µg/ml in isooctane, CIL

Supplier: LGC Standards PROMOCHEM

Organic Standard, 2,3',4,5-Tetrachlorobiphenyl (PCB No. 67) 35 µg/ml in isooctane, Pack type: Glass bottle

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Pesticide reference standard, β-Endosulfan 100 µg/ml in methanol

Supplier: AccuStandard

Organic Standard, β-Endosulfan 100 µg/ml in methanol, Pack type: Glass bottle

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Food matrix reference material, tea leaves - trace elements

Supplier: LGC Standards PROMOCHEM

This reference material is made from black tea.

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Meat homogenate - nutrients, NIST-1546A

Supplier: LGC Standards PROMOCHEM

This standard reference material is intended for determining fatty acids, cholestrol, proximates, calories, elements, vitamins and amino acids in canned meat products and similiar materials. The meat homogenate is a mixture of pork and chicken products blended together in a commercial process.