You searched for: Environmental Analysis Standards

Supplier: Hach

Standard solution for accuracy checks in alkalinity determinations.

Supplier: Hach

For accuracy checks in detergents (surfactants) determinations.

Supplier: Hach

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

Supplier: Dräger

Calibration gas with nitrogen background in non refillable cylinder.

Supplier: WTW

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

Supplier: WTW

BOD standard solution, 210 mg/l

Supplier: ROTRONIC INSTRUMENTS

Although most relative humidity (RH) probes have excellent long-term stability, it is recommended that their calibration be checked regularly.

Supplier: PerkinElmer

Combustion calibration statndard for sulphur analysis, cystine (26,69% S), solid 4 g

Supplier: Thermo Fisher Scientific

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

Supplier: WTW

Standard solution for accuracy checks in potassium determinations.

Supplier: WTW

These standard solutions for calibration contain 10 g of the ion to be measured per 10 liters.

Supplier: Merck

COD standard solution, Supelco®, 8000 mg/L, For test kit(s): 1.14555, pH range: 3 - 5

Supplier: REAGECON

Ideal for use as control standards to verify that correct analysis for COD has taken place.

Supplier: REAGECON

Total organic carbon (TOC) standard solution, 0,75mg/l C as sucrose, : N/A

Supplier: Merck

Nitrogen (total) standard solution, Supelco®, 2,50 mg/L N, Matrix: H₂O, For test kit(s): 1.00613; 1.14537, pH range: 5 - 7

Supplier: REAGECON

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

Supplier: REAGECON

Reagecon's EDTA 0,05 M is a fully factorised, high purity, stable product, developed and tested for titrations. This is an analytical volumetric solution, also called titrant, standard titrant or standard solution. It is a reagent of known concentration, that is dispensed from a burette or other dispensing apparatus to a sample (analyte), until a reaction between the two liquids is judged to be complete. The product may be used for manual titrations, or more commonly automatic titrations also called potentiometric titration, to determine the end points by detection of any of several properties as detailed in several ChP monographs.

Supplier: Merck

TOC standard solution, Supelco®, 5,00 mg/L TOC, Matrix: H₂O, pH range: 4 - 6

Supplier: Merck

The standard solutions offered below can be adjusted to a final concentration for the measurement range of a test system by dilution. In addition, these standards can be used to prepare spiking solutions for the standard addition procedure. They provide an economic and simple method of analytical quality control.

Supplier: CUSTOM MADE CHEMICALS LAB

TOC standard solution, 1000 mg/L, : N/A

Supplier: LGC Standards PROMOCHEM

Lead paint films for children's products, : N/A

Supplier: CPACHEM

Total nitrogen standard (1000 mg/L) - for photometric applications, : N/A

Supplier: LGC Standards PROMOCHEM

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

Supplier: Merck

Anions in Soil, Supelco®, Certified reference material, : N/A

Supplier: Merck

TPH - Sandy Loam 4, Supelco®, : N/A, Pkg of 100 g

Supplier: Merck

Base/Neutrals 1 - WP, Supelco®, Certified reference material, : N/A

Supplier: LGC Standards PROMOCHEM

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

Supplier: Merck

Dissolved Oxygen, Supelco®, Certified reference material, : N/A

Supplier: Merck

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

Supplier: Merck

Trace Metals 3 - WS, Supelco®, Proficiency Testing Material, : N/A