If you have ever questioned the result of an analytical test, you'll immediately appreciate the value of using standard solutions. These solutions contain a defined concentration of analyte, allowing you to quickly verify that instrument operation, reagent performance, and variations in operator…

Convenient, fast and cost-effective BOD₅ analysis with consistent results. Each capsule contains a minimum of 100 mg of specialized microbial cultures ideal for use in a broad range of areas involving degradation of industrial and municipal waste.  Formulated according to The Standard…

Standardized for colorimetric pH determination pH range 5.5-8.5

Butterfields Buffered Phosphate, 450 mL bottle. Complete Solutions for Testing Recreational Water Complete Solutions for Testing Wastewater Complete Solutions for Testing Drinking Water  

Dilution water component for Biochemical Oxygen Demand determination, pH 7.2.

30 g/L

For determination of chlorine by amperometric titration. APHA formulation 100 mL bottle.

For chlorine determination by the DPD ferrous titration method.

Powder Pillows for Alkalinity Standardization 50-mL sample/pH 4.50. pH is ± 0.05 at 20°C

0.02% (alc.) Standardized for colorimetric pH determination Range: 5.2 to 6.8

APHA, Alkalinity (Titration Method)

High range digital titrator procedure for carbonate in plating bath solutions

pH indicator for acidity and alkalinity titrations Visual transition interval: pH 3.0 (yellow)-pH 4.6 (blue)

pH indicator Visual transition interval: pH 6.0 (yellow)- pH 7.6 (blue) pk/100 Powder Pillows

pH indicator: pH 3.8 (yellow)-pH 5.4 (blue)

If you have ever questioned the result of an analytical test, you'll immediately appreciate the value of using standard solutions. These solutions contain a defined concentration of analyte, allowing you to quickly verify that instrument operation, reagent performance, and variations in operator…

For ultra-low Total Chlorine Determination by the DPD method. Hach Method 8370. Range: 2 - 500 μg/L Cl2 Ampuled for stability. Package of 20 1.5 mL ampules *This product has not been evaluated to test for chlorine and chlormaines in medical applications in the United States.

Boric Acid Solution (Indicating) 20 g/L APHA, Nitrogen-Ammonia

Buffer for preparing Monocloramine Standards Alkalinity Buffer, pH 8.30, 50 mL sample