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.
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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Organic reference standard, 2,2',3,4',5,6,6'-Heptachlorobiphenyl (PCB No. 188) 100 µg/ml in isooctane, CIL
Supplier: LGC Standards PROMOCHEM
Organic Standard, 2,2',3,4',5,6,6'-Heptachlorobiphenyl (PCB No. 188) 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) 35 µg/ml in isooctane, CIL
Supplier: LGC Standards PROMOCHEM
Organic Standard, 2,3',4,4',5,5'-Hexachlorobiphenyl (PCB No. 167) 35 µg/ml in isooctane, Pack type: Glass bottle
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Organic reference standard, 2,2',3,3',4,5,5',6'-Octachlorobiphenyl (PCB No. 201) 35 µg/ml in isooctane, CIL
Supplier: LGC Standards PROMOCHEM
Organic Standard, 2,2',3,3',4,5,5',6'-Octachlorobiphenyl (PCB No. 201) 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. 148) 35 µg/ml in isooctane, CIL
Supplier: LGC Standards PROMOCHEM
Organic Standard, 2,2',3,4',5,6'-Hexachlorobiphenyl (PCB No. 148) 35 µg/ml in isooctane, Pack type: Glass bottle
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Organic reference standard, 2,2',4,4',5,6'-Hexachlorobiphenyl (PCB No. 154) 35 µg/ml in isooctane, CIL
Supplier: LGC Standards PROMOCHEM
Organic Standard, 2,2',4,4',5,6'-Hexachlorobiphenyl (PCB No. 154) 35 µg/ml in isooctane, 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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Certified Reference Material for Standardisation of Volumetric Solutions
Supplier: CPACHEM
Iron(II)ethylenediammonium sulfate tetrahydrate - certified reference material for standardisation of volumetric solutions.
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Lead-zinc ore, reference standard, NCS
Supplier: LGC Standards PROMOCHEM
Lead-zinc ore
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Reference standards, surface water - trace metals
Supplier: LGC Standards 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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Organic reference standards, fipronil sulphone (NMIA P1731)
Supplier: LGC Standards 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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Reference standards, biodiesel/diesel fuel Blends
Supplier: LGC Standards PROMOCHEM
These standards are intended for use as calibration and reference standards for the determination of fatty acid methyl esters (FAME) biodiesel content in diesel fuel by infrared (IR) spectroscopy. They are formulated specifically for use with ASTM Method D7371 and EN 14078.
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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.
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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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Holmium Oxide Solution for Wavelength Control
Supplier: CPACHEM
Holmium oxide solution for wavelength control acc. 2.2.25 of Ph Eur
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Organic reference standard, 2,2',3,3',4,5,5',6,6'-Nonachlorobiphenyl (PCB No. 208) 100 µg/ml in isooctane, CIL
Supplier: LGC Standards PROMOCHEM
Organic Standard, 2,2',3,3',4,5,5',6,6'-Nonachlorobiphenyl (PCB No. 208) 100 µg/ml in isooctane, Pack type: Glass bottle
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Lithium ore, spodumene - lithium oxide, NIST standards
Supplier: LGC Standards PROMOCHEM
This reference standards are intended to use in checking the accuracy of assay methods. These are supplied in fine powder form.
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Metal alloy standards, cast iron (Ni-Cr-Mo), NIST, CRM
Supplier: LGC Standards PROMOCHEM
NIST-107C, cast iron (Ni-Cr-Mo)
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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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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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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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Glass - trace elements, NIST standards
Supplier: LGC Standards PROMOCHEM
This standard reference material is intended to facilitate the development of chemical methods of analysis for trace elements.
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Organophosphorus pesticide mix (16 components), european formulation
Supplier: Restek
Contains 16 components, those are acephate, azinphos methyl, chlorpyrifos, demeton-s-methyl, dichlorvos, dimethoate, ethion, malathion, methamidophos, methidathion, omethoate, pirimiphos methyl, profenofos, prothiofos, pyrazophos and tolclofos-methyl.
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Standards for formaldehyde-2,4-dinitrophenyl-hydrazone, BCR®
Supplier: LGC Standards PROMOCHEM
Used on glass fibre filters.
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Reference standard, water saturated octanol, NIST
Supplier: LGC Standards PROMOCHEM
NIST-2890, water saturated octanol, NIST
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Organic reference standards, cyclazadone (NMIA D914), Certified Reference Material (CRM)
Supplier: LGC Standards PROMOCHEM
The purity value obtained from a combination of traditional analytical techniques is 99,6 ± 1,4% mass fraction, (95% coverage interval). The purity estimate by traditional analytical techniques was obtained by subtraction from 100% of total impurities by GC-FID, thermogravimetric analysis, Karl Fischer analysis and 1H NMR and also supported by elemental microanalysis.
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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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Elemental analysis standards, custom blend S-21+K, CONOSTAN
Supplier: LGC Standards PROMOCHEM
Custom blend S-21+K, CONOSTAN®, 885 ppm
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Petroleum standards, heavy mineral oils, CRM
Supplier: LGC Standards PROMOCHEM
This matrix material solution is intended for use as a diluent for other metallo-organic standards.
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Reference Materials, Matrix Modifiers for GFAA, CRM, VHG, Promochem
Supplier: LGC Standards PROMOCHEM
This solution is intended for use as a matrix modifier for graphite furnace atomic absorption spectroscopy (GFAA) in the determination of trace elements.