ISO/CD 21027
Water Quality — Determination of total organic carbon for suspended solid containing water samples based on combined ultrasonic and alkaline extraction pretretment
Reference number
ISO/CD 21027
Edition 1
© ISO 2024
Committee Draft
Under development
A draft is being reviewed by the committee.

Abstract

This document specifies a method for optimizing measurements of the total organic carbon (TOC) content in water samples containing high loads of suspended solids (SSs) with particulate organic carbon (POCsusp) (e.g., waste water, storm water, raw water, surface water, and sea water), following a combined ultrasonic and alkaline extraction (CUAL) sample-pretreatment method. The method shall use a turbidity ratio (i.e., NTU5/NTU0) to evaluate the adequacy the pretreatment for samples containing SSs as an evaluation index of sample homogeneity (10.2). The analysis procedure shall be outperformed instrumentally using a differential method (e.g., TC-TIC) to quantify TOC.

General information

  • Status
     : Under development
    Stage
    : CD consultation initiated [30.20]
  • Edition
     : 1
  • Technical Committee :
    ISO/TC 147/SC 2
  • RSS updates

Life cycle

Sustainable Development Goals

This standard contributes to the following Sustainable Development Goals

3
Good Health and Well-being
6
Clean Water and Sanitation
11
Sustainable Cities and Communities
14
Life Below Water

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