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Customer Support: (800) 842-6629

Magnesium and Total Hardness CAL Check™ Standards - HI97719-11


In stock

The HI97719-11 are CAL Check™ Standards used with Magnesium and Total Hardness meters. These standards provide a simple solution to calibrating and validating compatible portable photometers. This high quality set of standards is manufactured in our state-of-the-art facility and comes supplied with a certificate of analysis. The certificate of analysis provides the lot number, reference values, and expiration date for traceability when certifying the hardness photometers.

  • Supplied with Certificate of Analysis

  • Standard value of 1.00 ±0.05 mg/L CaCO3 @ 25℃
  • Reusable with long shelf life stability


HI97719-11 is a high quality set of calibration standards that allows users to validate and calibrate the magnesium and total hardness range found in compatible photometers that have a 0.00 to 4.70 mg/L (ppm) CaCO3 range. The HI97719-11 includes one sealed “A” cuvette for zeroing the meter and one “B” cuvette that is used to validate or calibrate. The expected reading from the “B” standard is 1.00 ±0.05 mg/L CaCO3 @ 25℃. The calibration set is produced in our state-of-the-art manufacturing facility using reagent grade chemicals in a temperature controlled environment.

Supplied with Certificate of Analysis

  • Product Code
  • Lot number
  • Expiration date
  • Standard value @ 25℃
  • Reference meter NIST traceable

Provided storage containers

  • Light tight
  • Protects from accidental breakage

Compatible meters:

  • HI97719
  • HI97736
  • HI97741
  • HI97744
  • HI97745

Validation and calibration of the hardness range for one of the portable photometers listed above is quick and easy with the HI97719-11 CAL Check™ Standards.

Additional information

Weight 0.08 kg



SKU HI97719-11
Name Magnesium and Total Hardness CAL Check™ Standards – HI97719-11
Package Sealed standards: 0.00 and 1.00 mg/L
Quantity 1 set


Magnesium and Total Hardness CAL Check™ Standards – HI97719-11