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.
Polystyrene film - IR transmission wavelength standards, NIST-1921B
Supplier: PROMOCHEM
NIST-1921B, Polystyrene film - IR transmission wavelength
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Elemental analysis standards, soot content standards, VHG
Supplier: PROMOCHEM
This reference or calibration standard is intended for use in the determination of soot in diesel motor oil by infrared spectroscopy and other technique.
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Organic reference standard, 2,2',3,3',4,5,6'-Heptachlorobiphenyl (PCB No. 174) 35 µg/ml in isooctane, CIL
Supplier: PROMOCHEM
Organic Standard, 2,2',3,3',4,5,6'-Heptachlorobiphenyl (PCB No. 174) 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, 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, 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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Organic reference standard, 2,2',3,3',4,5,6-Heptachlorobiphenyl (PCB No. 173) 35 µg/ml in isooctane, CIL
Supplier: PROMOCHEM
Organic Standard, 2,2',3,3',4,5,6-Heptachlorobiphenyl (PCB No. 173) 35 µg/ml in isooctane, Pack type: Glass bottle
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DSC calibration standard, benzoic acid
Supplier: PROMOCHEM
Benzoic acid, Melting pt.: 122.35 °C
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Organic reference standard, Eicosapentaenoic acid ethyl ester, Ph.Eur., RS
Supplier: EDQM
Organic Standard, Eicosapentaenoic acid ethyl ester, Pack type: Vial
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Glass - trace elements, NIST standards
Supplier: PROMOCHEM
This standard reference material is intended to facilitate the development of chemical methods of analysis for trace elements.
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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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Impurity and API standards, 2-Chloro-6,7-dimethoxyquinazolin-4-amine mesilate
Supplier: PROMOCHEM
Organic Standard, 3-Ethyl 5-methyl 2-[(2-aminoethoxy)methyl]-4-(2-chlorophenyl)-6-methylpyridine-3,5-dicarboxylate fumarate
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Conductivity standard 100000 µS/cm (25 °C; 0.85 mol/L; KCl) for conductivity measurement
Supplier: YSI ENVIRONMENTAL
Conductivity standard 100,000 µS/cm (0,85 mol/l; KCl), Reference temperature: 25 °C
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Organic reference standard, 2,2',3,3',4,5',6,6'-Octachlorobiphenyl (PCB No. 200) 35 µg/ml in isooctane, CIL
Supplier: PROMOCHEM
Organic Standard, 2,2',3,3',4,5',6,6'-Octachlorobiphenyl (PCB No. 200) 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) 35 µg/ml in isooctane, CIL
Supplier: PROMOCHEM
Organic Standard, 2,2',3,3',4,4',5,5'-Octachlorobiphenyl (PCB No. 194) 35 µg/ml in isooctane, Pack type: Glass bottle
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Organic reference standard, 2,2',3,3',4,5,5',6,6'-Nonachlorobiphenyl (PCB No. 208) 35 µg/ml in isooctane, CIL
Supplier: PROMOCHEM
Organic Standard, 2,2',3,3',4,5,5',6,6'-Nonachlorobiphenyl (PCB No. 208) 35 µg/ml in isooctane, Pack type: Glass bottle
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Organic reference standards, clobetasols, Ph. Eur.
Supplier: EDQM
Organic Standard, Clobetasol impurity J, (17R)-4'-chloro-5'-ethyl-9-fluoro-11ß-hydroxy-16ß-methylspiro[androsta-1,4-diene-17,2'(3'H)-furan]-3,3'-dione, Ph. Eur. standard
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Fortified breakfast cereal, NIST-3233
Supplier: PROMOCHEM
NIST-3233, fortified breakfast cereal
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Organic reference standards, fipronil sulphone (NMIA P1731)
Supplier: PROMOCHEM
Purity estimate obtained from a combination of traditional analytical techniques is 99,3 ± 0,6% mass fraction, (95% coverage interval). The purity estimate by traditional analytical techniques was obtained by subtraction from 100% of total impurities by GC-FID, and Karl Fischer analysis. Supporting evidence is provided by elemental microanalysis and 1H NMR analysis.
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Boron standard solution, for ICP, in H₂O, VHG
Supplier: PROMOCHEM
The solutions are intended for use as a certified reference material or calibration standard for inductively coupled plasma optical emission spectroscopy (ICP-OES), inductively coupled plasma mass spectrometry (ICP-MS), flame or furnace atomic absorption spectroscopy (AA or GFAA), x-ray fluorescence spectroscopy (XRF), and other techniques for elemental analysis.
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Standard reference material, strawberry leaves - trace elements
Supplier: PROMOCHEM
This standard is intended for use in development, validation and quality control of analytical methods for the determination of elements in vegetation.
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Petroleum standards, heavy mineral oils, CRM
Supplier: PROMOCHEM
This matrix material solution is intended for use as a diluent for other metallo-organic standards.
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Organic reference standard, α-Hexabromocyclododecane 50 µg/ml in toluene, CIL
Supplier: PROMOCHEM
Organic Standard, α-Hexabromocyclododecane 50 µg/ml in toluene, Pack type: Glass bottle
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Reference standards, surface water - trace metals
Supplier: 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.
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Environmental standards, DSJ PCB mixture, CIL
Supplier: PROMOCHEM
DSJ PCB mixture, unlabeled PCBs, CIL, 1 ml in isooctane, : N/A
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Pesticide reference standard, Dibenzofuran 50 µg/ml in n-nonane, CIL
Supplier: PROMOCHEM
Organic Standard, Dibenzofuran 50 µg/ml in n-nonane, Pack type: Glass bottle
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Pesticide reference standard, Dieldrin 100 µg/ml in n-nonane, CIL
Supplier: PROMOCHEM
Organic Standard, Dieldrin 100 µg/ml in n-nonane, Pack type: Glass bottle
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Pesticide reference standard, Aldrin 100 µg/ml in n-nonane, CIL
Supplier: PROMOCHEM
Organic Standard, Aldrin 100 µg/ml in n-nonane, Pack type: Glass bottle