87443-8

LOINC 2.82

Hardness [Mass/volume] of Water by Calculation

Hardness Wat Calc-mCnc

Definition

  • Water hardness is the concentration of calcium and magnesium ions expressed as equivalents of calcium carbonate (CaCO3) and is calculated with the following formula: CaCO3 = Ca(mg/L)×2.97 + Mg(mg/L)×4.118

Component

  • Hardness

Specimen / system

  • Water

Class

  • SPEC

Property

  • MCnc

Scale

  • Qn

Method

  • Calculated

Related names

  • Calc; Calculation; Level; Mass concentration; Point in time; QNT; Quan; Quant; Quantitative; Random; SPEC; Wat

Index terms

  • Calc
  • Calculation
  • Level
  • Mass concentration
  • Point in time
  • QNT
  • Quan
  • Quant
  • Quantitative
  • Random
  • SPEC
  • Wat