DPD Method, Free Chlorine Reagent Powder Pillows Pack of 100 USEPA accepted for reporting drinking water analysis using Hach Method 8021 Sample Size: 10 mL Range: up to 2.00 mg/L For best results use with a Hach colorimeter or spectrophotometer. Backed by over 20 years of DPD experience!

3241D93: Chlorine (Total) Reagent Set for CN-21P Test Kit For determination of Chlorine (Total) by thiosulfate drop-count titration. Replacement reagent set for CN-21P Test Kit. Set includes Sulfamic Acid Powder Pillows, Potassium Iodide Powder Pillows and Sodium Thiosulfate Standard Solution…

Turbidimetric Method for determining cyanuric acid in pools and spas Cyanuric acid used as a stabilizing agent for chlorine

For determination of Chiorine Dioxide by the DPD Glycine method. USEPA accepted for reporting for drinking water analysis using Hach Method 10126. Range: 0.04 - 5.00 mg/L ClO₂ Sample Size: 10 mL Reagent set includes DPD Free Chlorine Reagent Powder Pillows and Glycine…

For direct use in calcium titrations Formula: N/A Formula Weight: N/A CAS Number: 3451-35-4 Synonym(s): Hydroxy Naphthol Blue

For copper determination by the bicinchoninate method. Copper Reagent, CuVer® 1 Method: Bicinchoninate USEPA accepted for wastewater reporting using Hach Method 8506 Range: up to 5.00 mg/L Sample: 10 mL pk/100 Powder Pillows

C997K17 Free Chlorine Buffer Solution. Use with Chlorine Indicator Solution (2314011) and DPD Compound (2297255) for testing Free Chlorine using the Rapid Liquid method, the CL17 Process Analyzer or bulk analytical methods. C997K18 Free Chlorine Indicator Solution. Use with…

Calmagite method for measuring calcium and magnesium hardness (0-4.00 mg/L as CaCO3) colorimetrically (on a Hach spectrophotometer) Reagent set contains: Alkali Solution, Calcium/Magnesium Indicator Solution, EDTA Solution, EGTA Solution Method: Calcium and Magnesium; Calmagite…

Buffer, Citrate Method: Cold Periodate Sample: 25 mL pk/100 Powder Pillows

Chlorine (Total) Reagent Set includes: Dissolved Oxygen 3 Powder Pillows, Potassium Iodide Powder Pillows, Starch Indicator Solution, Sodium Thiosulfate Standard Solution Cartridge Method: Iodometric Range as CI2 (2.0 N titrant) 100/test

For use in the heteropoly blue method (Hach method 8282) for the determination of ultra low range silica (0-1000 ug/L SiO2)

CAS No. 108-94-1 For zinc test C6H10O FW = 98.15 Assay: 99.5% Bottle/100 mL

Sample preparation set for the determination of total heavy metals with TNTplus® metal tests: TNT850 Lead, TNT852 Cadmium, TNT858 Iron, TNT860 Copper, TNT856 Nickel. For 50 digestions. Easy and safe handling: The innovative vial and reagent delivery makes tests easier to use than…

Full set of replacement reagents for Basic Drinking Water CEL Laboratories (Part Nos. 2688000 and 251234).

Expert Hexavalent and Total Chromium test made simple. Chromium TNTplus® chemistry and your Hach spectrophotometer are engineered to simplify water analysis for accurate results, everytime. For determination of Hexavalent and Total Chromium by the 1,5-Diphenylcarbohydrazide Method.…

For Silica Analysis Reagent for use in the silicomolybdate method (Hach method 8185) for the determination of high range silica (0-100.0 mg/L SiO2)

CAS No. 108-80-5 Standard material for cyanuric acid test

Chromium, Total, Reagent Set Includes: Acid Reagent Powder Pillows, ChromaVer® 3 Chromium Reagent Powder Pillows, Chromium 1 Reagent Powder Pillow, Chromium 2 Reagent Powder Pillows Method: Alkaline Hypobromite Oxidation Sample: 25 mL 100/test

Copper Reagent, CuVer® 2 For copper in the presence of high levels of aluminum, calcium, and iron. Calibrations for CuVer® 1 may be used. Bottle/100 g Powder

For CIO2 determination

The Calcium Separation Set is required when conducting TNTplus tests for Cadmium (TNT852) in sample matrices that contain calcium or magnesium in excess of 50 mg/L. Use of this set is in addition to digestion (using TNT890) when measuring total Cadmium. Easy and safe handling: The…

Complete replacement reagent set for CEL Environmental Water Quality Laboratories (Part Nos. 2687800 and 251232).

For hexavalent chromium determination by the Diphenylcarbohydrazide Method. USEPA accepted for reporting for wastewater analyses using (Hach Method 8023). Range: up to 0.70 mg/L Cr. Sample Size: 25 mL Method Name: 1,5-Diphenylcarbohydrazide Platform: Powder Pillows

Chloride Reagent Set includes: Chloride 2 Indicator Powder Pillows, titrant Range: 0 - 400 mg/L as CI 0.0493 N titrant 100/test

Copper Reagent Set includes: Free Copper Reagent Powder Pillows, Hydrosulfie Power Pillows Method: Free and Total (Bicinchoninate) Method Range: up to 5.00 mg/L Sample: 5 mL 100/test

[1-(1-Hydroxy-4-methyl-2-phenylazo)-2-naphthol-4-sulfonic acid] Analytical Grade CAS No. 3147-14-6 Indicator for calcium and magnesium C17H14N2O5S•H2O FW = 376.37

Decolorizing carbon, powdered, for plant tissue and soil sulfate testing. 100 g bottle.

Reagent set for the digital titrator with EDTA method (Hach method 8204) to determine calcium hardness CalVer/EDTA Method Contains: CalVer® 2 Indicator Powder Pillows, Potassium Hydroxide Solution (8 N), EDTA Titrant Cartridge 100 tests

Chlorine Dioxide Reagent Set, Chlorophenol Red For determination of Chlorine Doxide by the Chlorophenol Red Method. Hach method 8065. Range: 0.01 - 1.00 mg/L ClO₂ Sample Size: 50 mL Set contains Chlorine Dioxide Reagent 1, 2, and 3, and Dechlorinating Reagent…