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.
Dibutyl phthalate-[ring-D4] 100 µg/ml in n-nonane (98% D)
Supplier: LGC Standards PROMOCHEM
Organic Standard, Dibutyl phthalate-[ring-D4] 100 µg/ml in n-nonane (98% D), Pack type: Glass bottle
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Di-n-octyl phthalate-[ring-D4] 100 µg/ml in n-nonane (98% D)
Supplier: LGC Standards PROMOCHEM
Organic Standard, Di-n-octyl phthalate-[ring-D4] 100 µg/ml in n-nonane (98% D), Pack type: Glass bottle
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Reference standards, nitrogen standard set, CRM, VHG
Supplier: LGC Standards PROMOCHEM
These calibration standards are intended for use in the determination of low level nitrogen by ASTM Method D4629.
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Wavelength Calibration Solution for ICP-OES
Supplier: CUSTOM MADE CHEMICALS LAB
500 ml solution contains 50 mg/L Al, As, Ba,Cd, Co, Cr, Cu, Mn, Mo, Ni, Pb, Se, Sr, Zn and 500 mg/L K in 5% HNO₃.
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GF AAS Multi element standard XVIII, 16 components in 5% HNO₃
Supplier: CUSTOM MADE CHEMICALS LAB
16 components: Ag 10 mg/l, Al 100 mg/l, As 100 mg/l, Ba 50 mg/l, Be 5 mg/l, Cd 5 mg/l, Co 50 mg/l, Cr 20 mg/l, Cu 50 mg/l, Fe 20 mg/l, Mn 20 mg/l, Ni 50 mg/l, Pb 100 mg/l, Sb 100 mg/l, Se 100 mg/l, Tl 100 mg/l in 5% HNO₃.
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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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Relative Response Mixture
Supplier: AccuStandard
Relative response mixture, 8 components, 12,5% w/w
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2,2',3,4,4',5,5'-Heptachlorobiphenyl-[13C12] (PCB No. 180) 40 µg/ml in n-nonane (99% 13C), CIL
Supplier: LGC Standards PROMOCHEM
Organic Standard, 2,2',3,4,4',5,5'-Heptachlorobiphenyl-[13C12] (PCB No. 180) 40 µg/ml in n-nonane (99% 13C), Pack type: Glass bottle
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Water standards for oils, Karl Fischer titration, CRM, VHG
Supplier: LGC Standards PROMOCHEM
This solution is intended for use as a certified reference material in the determination of water in motor oil by Karl Fischer titration.
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ISE surfactant analysis solutions, Orion™
Supplier: Thermo Orion
ISE Surfactant Analysis Solutions for titrations with surfactant ion selective electrodes (ISE).
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Baking chocolate standard, NIST-2384
Supplier: LGC Standards PROMOCHEM
This reference material intended to use in validating methods for determining proximates, fatty acids, calories, vitamins, elements, catechins, caffeine, theobromine, and acrylamide in baking chocolate and similar matrices. It can be used for quality assurance in-house control materials.
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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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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 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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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.
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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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Standard reference material, spinach leaves - trace elements, NIST-1570A
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, proximates, calories and total dietary fiber in botanical materials, agricultural food products, and materials of similar matrix.
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Silicone Viscosoty Standards for Rotational Viscometers
Supplier: CANNON INSTRUMENT
CANNON silicone viscosity standards are intended for use with rotational viscometers only.
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Elemental analysis standards, plastic clay, NIST-98B
Supplier: LGC Standards PROMOCHEM
This standards reference material is intended to use in the determination of constituent elements in clay and material of similar matrix. These powdered clay was air-dried, ball-milled and blended to ensure homogeneity.
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Reference materials, metals in biodiesel Standard, VHG
Supplier: LGC Standards 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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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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Polystyrene film - IR transmission wavelength standards, NIST-1921B
Supplier: LGC Standards PROMOCHEM
NIST-1921B, Polystyrene film - IR transmission wavelength
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Elemental analysis standards, phosphate rock, western, NIST-694
Supplier: LGC Standards PROMOCHEM
This standard material is intended to use in validating analytical methods and in calibrating instruments used in the analysis of phosphate rock, fertilisers and similar materials.
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Elemental analysis standards, flint clay - constituent elements, NIST-97B
Supplier: LGC Standards PROMOCHEM
This standard reference material is intended for use in the determination of constituent elements in clay and material of similar matrix. Powdered clay was air-dried, ball-milled and blended to ensure homogeneity.
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DSC calibration standard, benzoic acid
Supplier: LGC Standards PROMOCHEM
Benzoic acid, Melting pt.: 122.35 °C
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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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Total Acid Number (TAN) Standards
Supplier: CUSTOM MADE CHEMICALS LAB
Total acid number TAN 17034, 2 mg KOH/g
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Elemental analysis standards, river sediment
Supplier: LGC Standards PROMOCHEM
River sediment - extractable metals, : N/A