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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',3,4,4',6-Hexachlorobiphenyl (PCB No. 139) 35 µg/ml in isooctane, CIL

Supplier: LGC Standards PROMOCHEM

Organic Standard, 2,2',3,4,4',6-Hexachlorobiphenyl (PCB No. 139) 35 µg/ml in isooctane, Pack type: Glass bottle

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Organic reference standard, 2,2',3,4,5-Pentachlorobiphenyl (PCB No. 86) 35 µg/ml in isooctane, CIL

Supplier: LGC Standards PROMOCHEM

Organic Standard, 2,2',3,4,5-Pentachlorobiphenyl (PCB No. 86) 35 µg/ml in isooctane, Pack type: Glass bottle

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Organic reference standard, 2,2',3,5,6,6'-Hexachlorobiphenyl (PCB No. 152) 35 µg/ml in isooctane, CIL

Supplier: LGC Standards PROMOCHEM

Organic Standard, 2,2',3,5,6,6'-Hexachlorobiphenyl (PCB No. 152) 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) 35 µg/ml in isooctane, CIL

Supplier: LGC Standards PROMOCHEM

Organic Standard, 2,3,3',4,5,5'-Hexachlorobiphenyl (PCB No. 159) 35 µg/ml in isooctane, Pack type: Glass bottle

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Organic reference standard, 2,2',4,4',5-Pentachlorobiphenyl (PCB No. 99) 100 µg/ml in isooctane, CIL

Supplier: LGC Standards PROMOCHEM

Organic Standard, 2,2',4,4',5-Pentachlorobiphenyl (PCB No. 99) 100 µg/ml in isooctane, Pack type: Glass bottle

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Organic reference standard, 2,3',4,5'-Tetrachlorobiphenyl (PCB No. 68) 35 µg/ml in isooctane, CIL

Supplier: LGC Standards PROMOCHEM

Organic Standard, 2,3',4,5'-Tetrachlorobiphenyl (PCB No. 68) 35 µg/ml in isooctane, Pack type: Glass bottle

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Organic reference standard, 2,2',4,4'-Tetrachlorobiphenyl (PCB No. 47) 35 µg/ml in isooctane, CIL

Supplier: LGC Standards PROMOCHEM

Organic Standard, 2,2',4,4'-Tetrachlorobiphenyl (PCB No. 47) 35 µg/ml in isooctane, Pack type: Glass bottle

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Organic reference standard, 2,2',3,3',4,4',5,5'-Octachlorobiphenyl (PCB No. 194) 100 µg/ml in isooctane, CIL

Supplier: LGC Standards PROMOCHEM

Organic Standard, 2,2',3,3',4,4',5,5'-Octachlorobiphenyl (PCB No. 194) 100 µg/ml in isooctane, 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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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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Organic reference standard, 2,2',3,3',4,4',5,6'-Octachlorobiphenyl (PCB No. 196) 100 µg/ml in isooctane, CIL

Supplier: LGC Standards PROMOCHEM

Organic Standard, 2,2',3,3',4,4',5,6'-Octachlorobiphenyl (PCB No. 196) 100 µg/ml in isooctane, Pack type: Glass bottle

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Dantron, Neat

Supplier: LGC Standards PROMOCHEM

Organic Standard, Dantron, Neat, Pack type: Glass bottle

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Organic reference standard, 2,2',3,4,4',5,5'-Heptachlorobiphenyl (PCB No. 180) 35 µg/ml in isooctane, CIL

Supplier: LGC Standards PROMOCHEM

Organic Standard, 2,2',3,4,4',5,5'-Heptachlorobiphenyl (PCB No. 180) 35 µg/ml in isooctane, Pack type: Glass bottle

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Organic reference standard, 2,2',3,3',4,6,6'-Heptachlorobiphenyl (PCB No. 176) 35 µg/ml in isooctane, CIL

Supplier: LGC Standards PROMOCHEM

Organic Standard, 2,2',3,3',4,6,6'-Heptachlorobiphenyl (PCB No. 176) 35 µg/ml in isooctane, Pack type: Glass bottle

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Organic reference standard, 2,2',3,4,4',6,6'-Heptachlorobiphenyl (PCB No. 184) 35 µg/ml in isooctane, CIL

Supplier: LGC Standards PROMOCHEM

Organic Standard, 2,2',3,4,4',6,6'-Heptachlorobiphenyl (PCB No. 184) 35 µg/ml in isooctane, Pack type: Glass bottle

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Organic reference standard, 2,2',3,3',4,6-Hexachlorobiphenyl (PCB No. 131) 35 µg/ml in isooctane, CIL

Supplier: LGC Standards PROMOCHEM

Organic Standard, 2,2',3,3',4,6-Hexachlorobiphenyl (PCB No. 131) 35 µg/ml in isooctane, Pack type: Glass bottle

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Organic reference standard, 2,3,3',4,4',5,5'-Heptachlorobiphenyl (PCB No. 189) 100 µg/ml in isooctane, CIL

Supplier: LGC Standards PROMOCHEM

Organic Standard, 2,3,3',4,4',5,5'-Heptachlorobiphenyl (PCB No. 189) 100 µg/ml in isooctane, Pack type: Glass bottle

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Organic reference standard, 2,2',3,3',4,4',5-Heptachlorobiphenyl (PCB No. 170) 100 µg/ml in isooctane, CIL

Supplier: LGC Standards PROMOCHEM

Organic Standard, 2,2',3,3',4,4',5-Heptachlorobiphenyl (PCB No. 170) 100 µg/ml in isooctane, Pack type: Glass bottle

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Organic reference standard, 2,3',4,4',5,5'-Hexachlorobiphenyl (PCB No. 167) 100 µg/ml in isooctane, CIL

Supplier: LGC Standards PROMOCHEM

Organic Standard, 2,3',4,4',5,5'-Hexachlorobiphenyl (PCB No. 167) 100 µg/ml in isooctane, Pack type: Glass bottle

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Organic reference standard, 2,2',3,3',5,5',6-Heptachlorobiphenyl (PCB No. 178) 35 µg/ml in isooctane, CIL

Supplier: LGC Standards PROMOCHEM

Organic Standard, 2,2',3,3',5,5',6-Heptachlorobiphenyl (PCB No. 178) 35 µg/ml in isooctane, Pack type: Glass bottle

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Organic reference standard, 2,2',3,4',5,5'-Hexachlorobiphenyl (PCB No. 146) 100 µg/ml in isooctane, CIL

Supplier: LGC Standards PROMOCHEM

Organic Standard, 2,2',3,4',5,5'-Hexachlorobiphenyl (PCB No. 146) 100 µg/ml in isooctane, Pack type: Glass bottle

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Organic reference standard, 2,2',3,3',4,4',5-Heptachlorobiphenyl (PCB No. 170) 35 µg/ml in isooctane, CIL

Supplier: LGC Standards PROMOCHEM

Organic Standard, 2,2',3,3',4,4',5-Heptachlorobiphenyl (PCB No. 170) 35 µg/ml in isooctane, Pack type: Glass bottle

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Colour 500 Pt-Co units calibration standard, CRM

Supplier: LGC Standards PROMOCHEM

Colour standard solution Pt-Co, Pt-Co, 500 units colour

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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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Reference standards, PAH mixture, CERTAN®

Supplier: LGC Standards PROMOCHEM

According to EU recommendation about the determination of carcinogenic PAHs in food (2005/108/EC) .

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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).