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.

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Sheepshead minnow (Cyprinodon variegatus), Proficiency Testing Material, Supelco®

Supplier: Merck

Sheepshead minnow (Cyprinodon variegatus), 7-day Chronic, daily renewal, SSW

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Ceriodaphnia dubia, proficiency testing material, Supelco®

Supplier: Merck

Ceriodaphnia dubia, 3-Brood Chronic, daily renewal, MHSF, Proficiency Testing Material

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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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Estuarine sediment standard - metals, NIST-1646A

Supplier: LGC Standards PROMOCHEM

NIST-1646A, estuarine sediment - metals, : N/A

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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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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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Elemental analysis standards, PTP sample of oils, VHG

Supplier: LGC Standards PROMOCHEM

The PTP has been specially designed for analytical laboratories that analyse new and used oils for metals, sulphur, viscosity and particle count.

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Reference standard, water saturated octanol, NIST

Supplier: LGC Standards PROMOCHEM

NIST-2890, water saturated octanol, NIST

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DSC calibration standard, benzoic acid

Supplier: LGC Standards PROMOCHEM

Benzoic acid, Melting pt.: 122.35 °C

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Indoor dust - trace elements, NIST-2584 standard

Supplier: LGC Standards PROMOCHEM

NIST-2584, indoor dust - trace elements, : N/A

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Organic reference standard, 1,1-Dichloropropene 1000 µg/ml in methanol

Supplier: abcr

Organic Standard, 1,1-Dichloropropene 1,000 µg/ml in methanol, 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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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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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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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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Supelco® Colour Reference Solutions, set of colours B, ampoules of 2 ml, Merck

Supplier: Merck

The kit contains a set of nine brown colour reference standards (identified sequentially from B1 to B9) and a 1% hydrogen chloride solution in water. The solutions are produced from three primary metal salt solutions of ferric(III) chloride, cobalt(II) chloride, and copper(II) sulfate pentahydrate, in accordance with chapter 2.2.2 ′Degree of colouration of liquids′ of the European Pharmacopoeia (Ph. Eur.).

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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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Supelco® Colour Reference Solutions, set of colours B, BY, Y, GY, R, ampoules of 10 ml, Merck

Supplier: Merck

The kit contains set of brown(92936), yellow (83967), red (95872), greenish-yellow (90269), and brownish-yellow (72666) colour reference standards. The solutions are produced from three primary metal salt solutions of ferric(III) chloride, cobalt(II) chloride, and copper(II) sulfate pentahydrate, in accordance with chapter 2.2.2 ′Degree of colouration of liquids′ of the European Pharmacopoeia (Ph. Eur.).

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Colour Reference Solutions BY7 acc. to Ph, Supelco®

Supplier: Merck

Color Reference Solutions BY7, Supelco®

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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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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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Colour reference solutions, ready to use, according to Ph. Eur., Certipur®, Supelco®

Supplier: Merck

Certipur® colour reference solutions are developed for ‘Method 1’ as described in chapter 2.2.2 of the European Pharmacopoeia.

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Environmental standards, WHO Dioxin-like PCB mixtures, in isooctane

Supplier: LGC Standards PROMOCHEM

WHO coplanar and mono-ortho PCBs, 1,2 ml in isooctane, : N/A

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Elemental analysis standards, portland cement type Ⅲ, NIST-1887B

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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Whole milk powder, NIST-1549A

Supplier: LGC Standards PROMOCHEM

This reference standard is intended for validation of methods for determining proximates, fatty acids, cholestrol, vitamins, elements and amino acids in whole milk powder and similar materials.

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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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Ferromanganese, high carbon, alloy, NIST-68C, reference standard

Supplier: LGC Standards PROMOCHEM

This standard reference material is in the powder form intended for use in checking chemical methods of analysis and in calibration with instrumental methods of analysis.

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Elemental analysis standards, brick clay - constituents, NIST-679

Supplier: LGC Standards PROMOCHEM

Brick clay - constituents, : N/A

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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.