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.
Organic reference standard, 2,2',3,4',5,5',6-Heptachlorobiphenyl (PCB No. 187) 35 µg/ml in isooctane, CIL
Supplier: PROMOCHEM
Organic Standard, 2,2',3,4',5,5',6-Heptachlorobiphenyl (PCB No. 187) 35 µg/ml in isooctane, Pack type: Glass bottle
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Organic reference standard, 2,2',3,3',5,6'-Hexachlorobiphenyl (PCB No. 135) 35 µg/ml in isooctane, CIL
Supplier: PROMOCHEM
Organic Standard, 2,2',3,3',5,6'-Hexachlorobiphenyl (PCB No. 135) 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. 132) 35 µg/ml in isooctane, CIL
Supplier: PROMOCHEM
Organic Standard, 2,2',3,3',4,6'-Hexachlorobiphenyl (PCB No. 132) 35 µg/ml in isooctane, Pack type: Glass bottle
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Organic reference standard, 3,3',4,4',5,5'-Hexachlorobiphenyl (PCB No. 169) 100 µg/ml in isooctane, CIL
Supplier: PROMOCHEM
Organic Standard, 3,3',4,4',5,5'-Hexachlorobiphenyl (PCB No. 169) 100 µg/ml in isooctane, Pack type: Glass bottle
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Conductivity calibration solutions, YSI
Supplier: YSI ENVIRONMENTAL
Conductivity standard, 50 000 µS/cm
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Organic reference standard, Etidronic acid 10 µg/ml in methanol
Supplier: PROMOCHEM
Organic Standard, Etidronic acid 10 µg/ml in methanol, Pack type: Glass bottle
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Organic reference standard, 2,2',3,5,5',6-Hexachlorobiphenyl (PCB No. 151) 35 µg/ml in isooctane, CIL
Supplier: PROMOCHEM
Organic Standard, 2,2',3,5,5',6-Hexachlorobiphenyl (PCB No. 151) 35 µg/ml in isooctane, Pack type: Glass bottle
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Organic reference standard, 2,2',3,4'-Tetrachlorobiphenyl (PCB No. 42) 35 µg/ml in isooctane, CIL
Supplier: PROMOCHEM
Organic Standard, 2,2',3,4'-Tetrachlorobiphenyl (PCB No. 42) 35 µg/ml in isooctane, Pack type: Glass bottle
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Organic reference standard, 2,3,3',4,4',5-Hexachlorobiphenyl (PCB No. 156) 100 µg/ml in isooctane, CIL
Supplier: PROMOCHEM
Organic Standard, 2,3,3',4,4',5-Hexachlorobiphenyl (PCB No. 156) 100 µg/ml in isooctane, Pack type: Glass bottle
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Organic reference standard, 2,2',3,4,4',5'-Hexachlorobiphenyl (PCB No. 138) 35 µg/ml in isooctane, CIL
Supplier: PROMOCHEM
Organic Standard, 2,2',3,4,4',5'-Hexachlorobiphenyl (PCB No. 138) 35 µg/ml in isooctane, Pack type: Glass bottle
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Organic reference standard, 2,3',4',5,5'-Pentachlorobiphenyl (PCB No. 124) 35 µg/ml in isooctane, CIL
Supplier: PROMOCHEM
Organic Standard, 2,3',4',5,5'-Pentachlorobiphenyl (PCB No. 124) 35 µg/ml in isooctane, Pack type: Glass bottle
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Organic reference standard, 2,3',4,4',5',6-Hexachlorobiphenyl (PCB No. 168) 35 µg/ml in isooctane, CIL
Supplier: PROMOCHEM
Organic Standard, 2,3',4,4',5',6-Hexachlorobiphenyl (PCB No. 168) 35 µg/ml in isooctane, Pack type: Glass bottle
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Organic reference standard, 2,3',4,6-Tetrachlorobiphenyl (PCB No. 69) 35 µg/ml in isooctane, CIL
Supplier: PROMOCHEM
Organic Standard, 2,3',4,6-Tetrachlorobiphenyl (PCB No. 69) 35 µg/ml in isooctane, Pack type: Glass bottle
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Organic reference standard, 3,3',4,5,5'-Pentachlorobiphenyl (PCB No. 127) 35 µg/ml in isooctane, CIL
Supplier: PROMOCHEM
Organic Standard, 3,3',4,5,5'-Pentachlorobiphenyl (PCB No. 127) 35 µg/ml in isooctane, Pack type: Glass bottle
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Organic reference standard, 2,2',3,5,6'-Pentachlorobiphenyl (PCB No. 94) 35 µg/ml in isooctane, CIL
Supplier: PROMOCHEM
Organic Standard, 2,2',3,5,6'-Pentachlorobiphenyl (PCB No. 94) 35 µg/ml in isooctane, Pack type: Glass bottle
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Organic reference standard, 2,3,3',5,6-Pentachlorobiphenyl (PCB No. 112) 35 µg/ml in isooctane, CIL
Supplier: PROMOCHEM
Organic Standard, 2,3,3',5,6-Pentachlorobiphenyl (PCB No. 112) 35 µg/ml in isooctane, Pack type: Glass bottle
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Organic reference standard, 2,3',4,4'-Tetrachlorobiphenyl (PCB No. 66) 35 µg/ml in isooctane, CIL
Supplier: PROMOCHEM
Organic Standard, 2,3',4,4'-Tetrachlorobiphenyl (PCB No. 66) 35 µg/ml in isooctane, Pack type: Glass bottle
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Organic reference standard, 2,2',4,6,6'-Pentachlorobiphenyl (PCB No. 104) 100 µg/ml in isooctane, CIL
Supplier: PROMOCHEM
Organic Standard, 2,2',4,6,6'-Pentachlorobiphenyl (PCB No. 104) 100 µg/ml in isooctane, Pack type: Glass bottle
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Organic reference standard, 2,3,3',4,4'-Pentachlorobiphenyl (PCB No. 105) 35 µg/ml in isooctane, CIL
Supplier: PROMOCHEM
Organic Standard, 2,3,3',4,4'-Pentachlorobiphenyl (PCB No. 105) 35 µg/ml in isooctane, Pack type: Glass bottle
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Organic reference standard, 3,3',4,5'-Tetrachlorobiphenyl (PCB No. 79) 35 µg/ml in isooctane, CIL
Supplier: PROMOCHEM
Organic Standard, 3,3',4,5'-Tetrachlorobiphenyl (PCB No. 79) 35 µg/ml in isooctane, Pack type: Glass bottle
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Organic reference standard, 2,2',3,6-Tetrachlorobiphenyl (PCB No. 45) 35 µg/ml in isooctane, CIL
Supplier: PROMOCHEM
Organic Standard, 2,2',3,6-Tetrachlorobiphenyl (PCB No. 45) 35 µg/ml in isooctane, Pack type: Glass bottle
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Reference Materials, Matrix Modifiers for GFAA, CRM, VHG, Promochem
Supplier: PROMOCHEM
This solution is intended for use as a matrix modifier for graphite furnace atomic absorption spectroscopy (GFAA) in the determination of trace elements.
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Iron ore
Supplier: PROMOCHEM
This reference standard is intended for use in checking chemical methods of analysis and in the calibration with instrumental methods of analysis.
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Impurity and API standard, (2S,5R,6R)-6-[[(2R)-2-[[(2R)-2-Amino-2-(4-hydroxyphenyl)acetyl]amino]-2-(4-hydroxyphenyl)acetyl]amino]-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylicacid
Supplier: PROMOCHEM
Organic Standard, (2S,5R,6R)-6-[[(2R)-2-[[(2R)-2-amino-2-(4-hydroxyphenyl)acetyl]amino]-2-(4-hydroxyphenyl)acetyl]amino]-3,3-dimethyl-7-oxo-4-thia-1-azabicyclo[3.2.0]heptane-2-carboxylic acid
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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: 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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Standards for Lead paint films for childrens' products, NIST-2569
Supplier: PROMOCHEM
Lead paint films for children's products, : N/A
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Pesticide reference standard, 1,3-Dichlorobenzene 100 µg/ml in isooctane, CIL
Supplier: PROMOCHEM
Organic Standard, 1,3-Dichlorobenzene 100 µg/ml in isooctane, Pack type: Glass bottle
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Organic reference standard, Dihexyl phthalate 100 µg/ml in n-nonane, CIL
Supplier: PROMOCHEM
Organic Standard, Dihexyl phthalate 100 µg/ml in n-nonane, Pack type: Glass bottle