Standard for calibrating and checking accuracy of ORP/Redox electrodes. The ZoBell's ORP/Redox Standard Solution exhibits temperature correlation between 0 - 30°C. The standard value is dependent on the reference electrode type.

500 platinum-cobalt units

StablCal® Turbidity Standards for all Turbidimeters. USEPA accepted for calibration purposes StablCal® Stabilized Formazin Turbidity Standards are true Formazin dilutions developed for use in any turbidimeter Precise, Pre-mixed Formazin Solutions Based on Formazin Primary…

For chloride determination by Digital Titrator argentometric titration. Hach method 8207. Digits x 0.1 = mg/L Cl- in 100 mL sample. Approximately 40-100 tests Accurate results - when and where you need them Fast and Flexible Versatile Economical

1990µS/cm Conductivity Standard

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…

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…

Silver Nitrate Titrant for chloride determination by buret titration. Hach method 8225. Uses Chloride 2 Indicator Powder Pillows (Cat. No. 105766) to signal the endpoint.

For accuracy checks in conductivity measurements. 49 mg/L as NaCl. 100 µS/cm @ 25°C. 500 mL.

Standard alkaline titrant solution.

Standard Cell Solution for Hach pHD Differential pH and ORP Sensors, packaged in resealable 500 mL bottle. Used to replenish standard cell chamber while replacing salt bridge.

Total and/or Free Chlorine (Colorimetric or Titrimetric Method) and Fluoride (SPADNS Method)

For sample dechlorination prior to analysis.

Demineralizer, plastic, portable, with hose. Special faucet adapter, plug, and resin. Used in Model 15-E Water Conditioning Demonstration Kit.

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…

S5000 Silica Standard Solution, Silica, 0.5mg/L, 2.9L

For low range silica determination in visual test kits. Pack of 100 powder pillows

Sodium Hydroxide 1.00N, 1L pk/4

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…

Soap Solution for Hardness Determination

For Model OX-DT Test Kit

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 base concentration determination by Digital Titrator titration. Sulfuric Acid Cartridges for Digital Titrator Titrant: 8.00 N H₂SO₄ Digits x 0.01 = meq Range: 10 to 4000 meq/L Base

Multi-purpose sodium hydroxide solution for pH adjustment. 1 Liter bottle

Digital Titrator Cartridge 8 N as NaOH Parameter: Acid Base Method: Phenolphthalein End Point

For carbon dioxide determination by buret titration. Hach method 8233.

Single-Use Standards Combo