0 Items
My account
Phone: (011) 7541-421, 3409-301, 3409-335, 6547-293, 3409-310
E-mail: Standards sales: prodaja@iss.rs Education: iss-edukacija@iss.rs Information about standards: infocentar@iss.rs
Stevana Brakusa 2, 11030 Beograd
Main menu

ISO/DIS 21027

Water quality — Determination of total organic carbon in water samples containing suspended solids by combined ultrasonic and alkaline extraction pretreatment

General information

40.20     Jul 21, 2026

ISO

ISO/TC 147/SC 2

International Standard

13.060.50  

Buying

Уколико желите да набавите овај документ обратите се на следећу адресу: prodaja@iss.rs

Scope

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.

Life cycle

NOW

PROJECT
ISO/DIS 21027
40.20 DIS ballot initiated: 12 weeks
Jul 21, 2026

Preview

To view the full content, you need to register or to log in to your account by clicking on the "Log in" button

Login