The environmental analysis standards confirm testing instruments remain consistent for pollutant level monitoring. Single or multi-element solutions can be used to compare and check composition determinations of unknown samples. Accurately assessing threats in the atmosphere, water sources, or soil, personnel can modify and improve conditions to re-establish the surroundings required for optimal performance. Identify all external and internal elements which impact overall growth with the environmental analysis standards.

Hardness quality control standard

Supplier: Hach

These mixed standards are ready to use with no dilutions required. Includes standards for both total hardness and calcium hardness determination.

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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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Total organic carbon standards

Supplier: Hach

For accuracy checks in total organic carbon (TOC) determinations. Available as 20 ml sealed ampules.

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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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ISE standards

Supplier: Hach

ISE-Standards werden zur Kalibrierung von Messsystemen für ionenselektive Elektroden durch Abstimmung des Elektrodenausgangs mit der Konzentration des Analyten verwendet. Für die Analyse werden Paare von Standards mit Konzentrationen, die sich durch einen Faktor von zehn unterscheiden, verwendet.

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Oxygen demand, quality control standard

Supplier: Hach

These mixed standards are ready to use, no dilutions are required. They contain BOD, COD and TOC.

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Standard solution, detergent

Supplier: Hach

For accuracy checks in detergents (surfactants) determinations.

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Standard solution, phosphate, 500 mg/L as PO4 (NIST), pk/16 - 10-mL voluette® ampules

Supplier: Hach

For accuracy checks in phosphate (phosphorus) determinations

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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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Eisen-Standardlösung

Supplier: Hach

Für eine genaue Prüfungen bei der Eisenbestimmung.

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Reference standard kits for use with MD 100 and MD 200 photometers

Supplier: Lovibond

Reference standards are designed to check the accuracy and the reliability of the results.

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BOD standard solution

Supplier: WTW

BOD standard solution, 210 mg/l

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Solution, cobalt chloride, for spectrophotometer

Supplier: Hach

Cobalt chloride solution for spectrophotometer linearisation.

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Reagents for determination of ammonia and total kjeldahl nitrogen by the nessler method

Supplier: Hach

For determination of ammonia and total kjeldahl nitrogen by the nessler method. Solutions are available in self-contained dropping bottle.

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Nitrification inhibitor for BOD

Supplier: Hach

TCMP - 2-chloro-6 (trichloromethyl) pyridine (N-Serve), coated on an inert substrate.

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Potassium Standard Solution

Supplier: WTW

Standard solution for accuracy checks in potassium determinations.

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Anionic Surfactant, a-Ten - Test Kit

Supplier: WTW

a-Ten 02552, anionic surfactants cell test - 25 determinations.

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Hydrazine, standard solution, Specpure®, N₂H₄ 100 µg/ml

Supplier: Thermo Fisher Scientific

Hydrazine standard, Specpure®, : N/A, Matrix: 1% CH₃COOH

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Kalibriergase

Supplier: Dräger

Kalibriergas mit Stickstoff-Hintergrund in einem Einweg-Zylinder.

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Feuchtestandards

Supplier: ROTRONIC INSTRUMENTS

Obwohl die meisten Feuchtigkeitsfühler (rF) eine ausgezeichnete Langzeitstabilität aufweisen, wird empfohlen, ihre Kalibrierung regelmäßig zu überprüfen.

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Verbrennungskalibrierstandard

Supplier: PerkinElmer

Verbrennungskalibrierstandard für die Schwefelanalyse, Cystin (26,69% S), fest, 4 g

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ISE-Standardlösungen

Supplier: WTW

Standardlösungen zur Kalibrierung enthalten pro Liter 10 g des zu messenden Ions.

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524.2 Surrogate standard (2 components)

Supplier: Restek

It separate mixes for surrogates and internal standard.

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Carbon dioxide standard solutions

Supplier: REAGECON

Standards for M965D carbon dioxide analyser, for soft drinks and brewery applications.

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Total organic carbon (TOC) standards

Supplier: REAGECON

Total organic carbon (TOC) standard solution, 4 mg/l C as KHP, : N/A

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MA EPH aliphatic hydrocarbon standard (14 components)

Supplier: Restek

MA EPH aliphatic hydrocarbon standard, 1000 µg/ml each in hexane, : N/A, 1 ml/ampoule

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EPA 539 calibration stock standard (7 components)

Supplier: Restek

Contains the seven hormones listed in EPA Method 539 at the appropriate concentrations. The seven components are 4-androstene-3, 17-dione, equilin, 17-beta-Estradiol, estriol, estrone, 17-alpha-ethynylestradiol and testosterone.