Standardization of the methods for characterizing, categorizing, preparing, treating, recycling and managing sludge and products from urban wastewater collection systems, night soil, storm water handling, water supply treatment plants, wastewater treatment plants for urban and similar industrial waters. It includes all sludge that may have similar environmental and/or health impacts.

Standardization of measurement methods for characterizing and categorizing encompasses: sampling methods, physical, chemical and microbiological parameters analysis, preparation of sludge, physical behaviour of sludge, all required for the characterization of sludge with a view to facilitate decisions on the choice of the treatment procedures and of the use and disposal of sludge.


  • hazardous sludge from industry and dredged sludge already covered by ISO/TC 190 "Soil Quality"

Quick links


ISO standards under development *

under the direct responsibility of ISO/TC 275


Participating countries


Observing countries

* number includes updates

Reference Title Type
ISO/TC 275/WG 1 Terminology Working group *
ISO/TC 275/WG 2 Characterization methods Working group *
ISO/TC 275/WG 3 Anaerobic digestion Working group *
ISO/TC 275/WG 4 Land application Working group *
ISO/TC 275/WG 5 Thermal processes Working group *
ISO/TC 275/WG 6 Thickening and dewatering Working group *
ISO/TC 275/WG 7 Inorganics and nutrients recovery Working group *

* The convener can be reached through the secretariat (See contact information below)

Liaison Committees to ISO/TC 275

The committees below can access the documents of ISO/TC 275 :

Reference Title ISO/IEC
ISO/PC 305 Sustainable non-sewered sanitation systems ISO
ISO/TC 147/SC 6 Sampling (general methods) ISO
ISO/TC 190 Soil quality ISO
ISO/TC 282 Water reuse ISO
ISO/TC 297 Waste management, recycling and road operation service ISO
Liaison Committees from ISO/TC 275

ISO/TC 275 can access the documents of the committees below :

Reference Title ISO/IEC
ISO/PC 305 Sustainable non-sewered sanitation systems ISO
ISO/TC 134 Fertilizers and soil conditioners ISO
ISO/TC 147 Water quality ISO
ISO/TC 190 Soil quality ISO
ISO/TC 224 Service activities relating to drinking water supply systems and wastewater systems - Quality criteria of the service and performance indicators ISO
ISO/TC 255 Biogas ISO
ISO/TC 282 Water reuse ISO
ISO/TC 282/SC 1 Treated wastewater reuse for Irrigation ISO
Date Month Location TC/SC Note
  4th Quarter 2017 Dublin (Ireland) ISO/TC 275 **

* Information definite but meeting not yet formally convened
** Provisional

ISO/TC 275 - Secretariat

AFNOR France
Association française de normalisation
11 rue Francis de Pressensé
F-93571 La Plaine Saint-Denis Cedex

Tel: +33 1 41 62 80 00
Fax: +33 1 49 17 90 00

Secretariat direct:
M Arnaud Gaudrier