You searched for: Standards

Supplier: Merck

Free Liquids in Paint - PT, Supelco®, Proficiency Testing Material, : N/A

Supplier: Merck

Trace Metals - Clay 1, Supelco®, Certified reference material, : N/A, Pkg of 50 g

Supplier: Merck

Anions - Sandy Loam 1, Supelco®, Certified reference material, : N/A, Pkg of 50 g

Supplier: Merck

Chromium VI in Soil - PT, Supelco®, Proficiency Testing Material, : N/A

Supplier: Merck

No. 2 Fuel Oil, refinery grade, Supelco®, 20000 mug/mL in methanol

Supplier: Merck

TSS/pH (whole volume) in Seawater - WS, Supelco®, Proficiency Testing Material, : N/A

Supplier: Merck

EPA 552.2 Acids Calibration Mix, Supelco®, Certified reference material, in methyl tert-butyl ether (varied), : N/A

Supplier: Merck

EPA 8270 GC-MS Tuning Solution, Supelco®, Certified reference material, 50 mug/mL each component in dichloromethane, : N/A

Supplier: Merck

Each unit of SRM 1643F consists of a polyethylene bottle containing ~250 ml of acidified water, sealed within an aluminized plastic bag to maintain stability. The SRM simulates the elemental composition of fresh water. The solution contains nitric acid at a volume fraction of ~2%, equivalent to an amount of substance concentration (molarity) of nearly 0,32 mol/L.

Supplier: Merck

The kit contains a set of seven yellow colour reference standards (identified sequentially from Y1 to Y7) and a 1% hydrogen chloride solution in water. The solutions are produced from two primary metal salt solutions of ferric(III) chloride and cobalt(II) chloride, in accordance with chapter 2.2.2 ′Degree of colouration of liquids′ of the European Pharmacopoeia (Ph. Eur.).

Supplier: PROMOCHEM

This reference standards are intended to use in checking the accuracy of assay methods. These are supplied in fine powder form.

Supplier: PROMOCHEM

Benzoic acid, Melting pt.: 122.35 °C

Supplier: PROMOCHEM

Phosphorus in 20 blank oil, 1000 µg/g

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.).

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.).

Supplier: PROMOCHEM

Used on glass fibre filters.

Supplier: CUSTOM MADE CHEMICALS LAB

Total acid number TAN 17034, 2 mg KOH/g

Supplier: PROMOCHEM

River sediment - extractable metals, : N/A

Supplier: PROMOCHEM

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

Supplier: PROMOCHEM

NIST-2890, water saturated octanol, NIST

Supplier: 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.

Supplier: Merck

The kit contains a set of seven brownish yellow colour reference standards (identified sequentially from BY1 to BY7) and a 3.7% 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.).

Supplier: PROMOCHEM

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

Supplier: PROMOCHEM

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

Supplier: Merck

The kit contains set of brown(83951), yellow (83883), red (87448), greenish-yellow (82995), and brownish-yellow (86293) 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.).

Supplier: PROMOCHEM

This Reference material is intended for daily use in conjunction with measurement of elements in wastewaters. The water solution contains 13 elements with concentrations traceable to ultra pure metals or stoichiometrically well-defined substances.

Supplier: PROMOCHEM

Custom blend S-21+K, CONOSTAN®, 885 ppm

Supplier: PROMOCHEM

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

Supplier: PROMOCHEM

Brick clay - constituents, : N/A

Supplier: PROMOCHEM

PTP sample for particle count analysis, VHG, 125 ml, VHG