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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Standard mixture of fatty acid methyl esters (consists of methyl hexanoate, heptanoate, octanoate, nonanoate, and decanoate), standard material for GC

Supplier: TCI

Standard Mixture of Fatty Acid Methyl Esters (consists of Methyl Hexanoate, Heptanoate, Octanoate, Nonanoate, and Decanoate)

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Standard solution, detergent

Supplier: HACH

For accuracy checks in detergents (surfactants) determinations.

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Chlorine standard solution

Supplier: HACH

For accuracy checks in chlorine determinations. Lot specific concentration displayed on label.

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BOD standard solutions (NIST)

Supplier: HACH

For accuracy checks in Biochemical Oxygen Demand (BOD) determinations.

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Quaternary ammonium compound (QAC) standard solution

Supplier: HACH

For accuracy checks in quaternary ammonium compound (QAC) determinations.

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LC/MS calibrant mixes

Supplier: AGILENT HEWLETT PACKARD

Organic Standard, ES-TOF tuning mix, 100 ml

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Colour standards

Supplier: HACH

For accuracy checks in colour determinations.

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Pre-prepared polystyrene kits, EasiCal™

Supplier: VARIAN

The EasiCal system for organic solvents consists of two different combs, each with ten detachable spatulas supporting a mixture of five polymer standards with MWs selected to provide equidistant calibration points for greater accuracy.

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Wastewater inorganics quality control standard

Supplier: HACH

These mixed standards are ready to use, no dilutions are required. They contain ammonia nitrogen, nitrate nitrogen, COD, phosphate, sulphate and TOC.

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Standards, calibration for LCK cuvettes, Addista

Supplier: HACH

System for Analytical Quality Assurance (AQA), consisting of one combined standard/spiking solution and two round robin test solutions.

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Ethyl Gallate, for Determination of Total Polyphenol Content

Supplier: TCI

Organic Standard, Ethyl Gallate, Purity (Neutralization titration): min. 98.0 %, Pack type: Glass bottle for solids

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Mass spectrometry controls, peptide retention time calibration mixture, Pierce™

Supplier: Thermo Fisher Scientific

The Pierce mixture enables reversed phase liquid chromatography (LC) and mass spectrometry (LC-MS) users to optimise and confirm correct operation of their equipment.

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3-Methyl-2-heptene (cis- and trans- mixture)

Supplier: TCI

Organic Standard, 3-Methyl-2-heptene (cis- and trans- mixture), Purity (GC): min. 95.0 % (total of isomers)

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VOA calibration mix #1 (ketones) (4 components)

Supplier: RESTEK

Mix contains Acetone (67-64-1), 2-Butanone (MEK) (78-93-3), 2-Hexanone (591-78-6), 4-Methyl-2-pentanone (MIBK) (108-10-1).

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Standard for osmometer

Supplier: Advanced Instruments

Calibration standard is used to check the perforance of osmometer and test methods.

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Amino acids analysis standards, AdvanceBio AAA

Supplier: AGILENT HEWLETT PACKARD

A kit with amino acid standards (17 components) at different concentrations together with reagents and buffers required for analysis.

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Conductivity standards, Certipur® Supelco®

Supplier: MERCK MILLIPORE

These conductivity sachets are convenient, easy to use and ensure accurate and reliable results both in the field or in the laboratory. The 30 ml sachets always provide a fresh solution preventing contamination by microorganisms, CO₂ or other substances. A conductivity sensor can be simply inserted into the sachet.

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Chiral column test mix (9 components)

Supplier: RESTEK

The mix consists of (C10:0) Methyl decanoate (210 μg/ml), (C11:0) methyl undecanoate (210 μg/ml), (C12) n-dodecane 150 μg/ml, (C12:0) methyl dodecanoate (210 μg/ml), 2,3-butanediol (+/-) (500 μg/ml), 1-heptanol (180 μg/ml), 3-methylphenol (m-cresol) (160 μg/ml), 1-phenylethanol (+/-) (500 μg/ml) and α-pinene (+/-) (500 μg/ml).

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Water standards for Karl Fischer titration, Aquastar®, Supelco®

Supplier: MERCK MILLIPORE

Aquastar® standards for Karl Fischer titration can be used for monitoring and qualification of your Karl Fischer instruments, for checking and evaluating measuring results, and for performing titer determination of volumetric Karl Fischer reagents.