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 reestablish the surroundings required for optimal performance. Identify all external and internal elements which impact overall growth with the environmental analysis standards.

Certified Reference Materials for environmental analysis

Supplier: VKI WATER QUALITY INSTITUTE

Certified Reference Materials (CRMs), produced by VKI, are designed to provide appropriate homogenous stable reference materials for quality control of environmental analyses. Certification is carried out in accordance with ISO Guide 30, 31, 33, 34, 35, ISO 5725 and ISO/REMCO N 37. All CRMs are traceable to a National Standard, or verified by a group of internationally recognised laboratories, and come with a Certificate of Analysis which states the certified value and the uncertainty at a stated level of confidence.

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SpecCheck secondary gel standards sets

Supplier: Hach

SpecCheck secondary gel standards sets, 0 - 2 mg/l F₂, For test kit(s): Fluoride, 4 Vials

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COD calibration standard solutions (NIST traceable)

Supplier: Hach

COD standard solution (NIST), 1000 mg/l

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Sulfate standard solution

Supplier: Hach

Standard solution for accuracy checks in sulfate determinations.

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Silica standard solution

Supplier: Hach

Standard solutions for accuracy checks in silica determinations.

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Cobalt standard solution

Supplier: Hach

Standard solution for accuracy checks in cobalt 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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Hardness standard solution, APA6000

Supplier: Hach

Hardness standard solution, 0,50 mg/l as CaCO₃ traceable to NIST.

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Standards for the ammonia and monochloramine analyser, APA6000

Supplier: Hach

These are used as part of the standard kit for both APA 6000 ammonia and ammonia/monochloramine analyser instruments.

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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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Nitrogen-nitrate standard solution

Supplier: Hach

Standard solutions for accuracy checks in nitrate nitrogen determinations and also for meter calibrations/standardisation.

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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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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 for photometric test Kits, NANOCONTROL

Supplier: MACHEREY-NAGEL

Multi standard

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Dissolved oxygen standard solution

Supplier: Hach

Iodate-Iodide standard solution, 0.00125 N equivalent 10 mg/L DO

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Copper standard solution

Supplier: Hach

Standard solution for accuracy checks in copper determinations.

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Iron standard solution

Supplier: Hach

For accuracy checks in iron determinations.

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Control standard

Supplier: Hach

Control standard for nitrate determination, 25 mg/l as NO3

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Magnesium standard solution

Supplier: Hach

Standard solutions for accuracy checks in magnesium determinations. HNO₃ matrix.

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Cadmium standard solution

Supplier: Hach

Standard solution for accuracy checks in cadmium determinations.

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Nitrite standard solution

Supplier: Hach

For accuracy checks in nitrite determinations.

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ISE standards

Supplier: Hach

ISE standards are used to calibrate ion selective electrode measurement systems by coresponding the electrode output with the concentration of the analyte. Pairs of standards with concentrations that differ by a factor of ten are used for analysis.