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12869 results for Standards

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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.

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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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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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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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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Combined six cation standard-II, Dionex™

Supplier: DIONEX

Ion standards are used for a variety of routine anion, cation, and standard determinations.

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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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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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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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DSC calibration standard, benzoic acid

Supplier: LGC Standards PROMOCHEM

Benzoic acid, Melting pt.: 122.35 °C

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Environmental standards, DSJ PCB mixture, CIL

Supplier: LGC Standards PROMOCHEM

DSJ PCB mixture, unlabeled PCBs, CIL, 1 ml in isooctane, : N/A

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BNA Surrogates Mixture

Supplier: EHRENSTORFER

Stable isotope labelled product type, mixture format, dichloromethane solvent.

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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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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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Polystyrene film - IR transmission wavelength standards, NIST-1921B

Supplier: LGC Standards PROMOCHEM

NIST-1921B, Polystyrene film - IR transmission wavelength

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EPA Method 552 Halogenated Acetic Mixture 1000 µg/ml in Methyl tert-butyl ether

Supplier: EHRENSTORFER

EPA method 552 halogenated acetic mixture 1000 µg/ml in methyl tert-butyl ether, : N/A

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Calibration gas cylinders

Calibration gas cylinders

Supplier: M S A

The gas mixture in calibration gas cylinder is certified to be prepared gravimetrically, using NIST traceable weights. The lot number and nominal value of the gas constituents in volume, percent by mass, PPM, or volume is specified on the cylinder.

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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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Elemental analysis standards, portland cement (Ivory)

Supplier: LGC Standards PROMOCHEM

These are intended primarily for the evaluation and calibration of methods for analysis of cements and materials of similar matrix.

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OEKO-TEX PAH Mixture

Supplier: EHRENSTORFER

Dichloromethane solvent, mixture product format.

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Standards for Lead paint films for childrens' products, NIST-2569

Supplier: LGC Standards PROMOCHEM

Lead paint films for children's products, : N/A

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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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Ferrotitanium alloy, reference standard, NCS

Supplier: LGC Standards PROMOCHEM

Ferrotitanium, NCS

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Low alloy steel standard

Supplier: LGC Standards PROMOCHEM

This reference material is intended for use in the evaluation of chemical and instrumental analysis and in calibration of those methods.

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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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Oil analysis standards, phosphorus in 20 blank oil, CONOSTAN®

Supplier: LGC Standards PROMOCHEM

Phosphorus in 20 blank oil, 1000 µg/g

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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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Metal alloy standard, tool steel, IMZ

Supplier: LGC Standards PROMOCHEM

Tool steel, 40×40 mm

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Reference materials, acid number standards, total acid number (TAN)

Supplier: LGC Standards PROMOCHEM

Acid number 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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