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.

Standards for water analysis, total kjeldahl nitrogen standard, VHG

Supplier: LGC Standards PROMOCHEM

This standard solution is intended for use as a calibration standard for total kjeldahl nitrogen (TKN).

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Standards for water pollution QC check, hexavalent chromium, VHG

Supplier: LGC Standards PROMOCHEM

This solution is intended for use as a quality control check for methods related to hexavalent chromium.

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Standards for water pollution QC check, total phenolics, VHG

Supplier: LGC Standards PROMOCHEM

This solution is intended for use as a quality control check for methods related to total phenolics.

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Chemical Oxygen Demand COD 50 mg/L Calibration Standard

Supplier: CUSTOM MADE CHEMICALS LAB

Chemical oxygen demand COD 50 mg/L calibration standard, : N/A, Calibration standard

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Hydrazine Sulphate Solution

Supplier: CUSTOM MADE CHEMICALS LAB

Hydrazine sulphate solution, : N/A

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Elemental analysis standards, phosphate rock, western, NIST-694

Supplier: LGC Standards PROMOCHEM

This standard material is intended to use in validating analytical methods and in calibrating instruments used in the analysis of phosphate rock, fertilisers and similar materials.

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Standards for water pollution QC check, oil and grease concentrate, VHG

Supplier: LGC Standards PROMOCHEM

This material is designed for use as a quality control check for EPA method 1664. This standard is prepared in solvent n-propanol but not preserved.

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ISE calibration standards

Supplier: Mettler - Toledo

Iodide ISE standard solution, 1000 mg/l, 1000 mg/l as I, : N/A

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ISE surfactant analysis solutions, Orion™

Supplier: Thermo Orion

ISE Surfactant Analysis Solutions for titrations with surfactant ion selective electrodes (ISE).

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Nitrogen (Total) Standard Solution, CRM

Supplier: CUSTOM MADE CHEMICALS LAB

Total nitrogen standard (100 mg/L) - for photometric applications.

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Elemental analysis standards, river sediment

Supplier: LGC Standards PROMOCHEM

River sediment - extractable metals, : N/A

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BOD standard solutions, VHG

Supplier: LGC Standards PROMOCHEM

The standard solution is intended for use as a glucose-glutamic acid standard check solution for biochemical oxygen demand (BOD) in APHA Method 5210 B.

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BOD calibration standards, CRM

Supplier: LGC Standards PROMOCHEM

BOD calibration standard, 200 mg/l, : N/A, Matrix: H₂O

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Reference standards, soil, BTEX - Loamy Sand 1, CRM

Supplier: LGC Standards PROMOCHEM

BTEX - Loamy Sand 1, (5 analytes), : N/A

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Elemental analysis standards, flint clay - constituent elements, NIST-97B

Supplier: LGC Standards PROMOCHEM

This standard reference material is intended for use in the determination of constituent elements in clay and material of similar matrix. Powdered clay was air-dried, ball-milled and blended to ensure homogeneity.

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Water hardness standard for ISE calibration, Orion™

Supplier: Thermo Orion

Water hardness standard for ISE calibration, Orion™, 100 ppm CaCO₃, : N/A

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Hard Drinking Water UK Low Level Metals

Supplier: LGC Standards PROMOCHEM

Hard drinking water UK low level metals, : N/A

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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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Reference standards, gypsum

Supplier: LGC Standards PROMOCHEM

Certified reference materials (CRM) for gypsum and its constitutents.

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Reference standards, PAH mixture 15

Supplier: LGC Standards PROMOCHEM

According to EU recommendation about the determination of carcinogenic PAHs in food (2005/108/EC) .

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Domestic sludge - metals, NIST-2781 standard

Supplier: LGC Standards PROMOCHEM

This standard reference material is intended to use in the evaluation of methods used for the analysis of sludges and other materials of a similar matrix. These are dried and pulverised domestic sludge.

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COD standard solutions, VHG

Supplier: LGC Standards PROMOCHEM

This solution is intended for use as a calibration standard or quality control check for chemical oxygen demand (COD).

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Reference standards, surface water - trace metals

Supplier: LGC Standards PROMOCHEM

This reference standard is intended for daily use in conjunction with measurement of elements in surface waters. The water solution contains 45 elements with concentrations traceable to
ultrapure metals or stoichiometrically well-defined substances.

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Reference standards, waste water - trace metals

Supplier: LGC Standards 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.

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Elemental analysis standards, plastic clay, NIST-98B

Supplier: LGC Standards PROMOCHEM

This standards reference material is intended to use in the determination of constituent elements in clay and material of similar matrix. These powdered clay was air-dried, ball-milled and blended to ensure homogeneity.

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Residual chlorine standard for ISE calibration, Orion™

Supplier: Thermo Orion

Residual chlorine standard for ISE calibration, Orion™, 100 ppm, : N/A

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Standards for portable colorimeters, CAL Check™

Supplier: Hanna

CAL Check™ Standard for pH/free Chlorine/total Chlorine, CAL Check™, : N/A

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Standards for water pollution QC check, inorganics, VHG

Supplier: LGC Standards PROMOCHEM

This solution is intended for use as a quality control check for methods related to measurements of inorganic materials includes conductivity, alkalinity as CaCO₃, chloride, fluoride, nitrite and nitrate, sulphate, potassium, sodium, total dissolved solids and many more.