Coal gas, water gas, producer gas and similar gases, other than petroleum gases and other gaseous hydrocarbons. (HS code(s): 2705); Biological sources and alternative sources of energy (ICS code(s): 27.190)

DUS 2688:2025, Biogas systems — Institutional cooking and non-gasification, First Edition; (51 page(s), in English)

This document applies for biogas production systems by anaerobic digestion, biogas conditioning, biogas upgrading and biogas utilization from a safety, environmental, performance and functionality perspective, during the design, manufacturing, installation, construction, testing, commissioning, acceptance, operation, regular inspection and maintenance phases. This standards cover institutional biogas systems with capacity range of 10kW/day – 20kW/day.

The following topics are excluded from this document:

— boilers, burners, furnaces and lighting in case these are not specifically applied for locally produced biogas;

— gas fuelled engines for vehicles and ships;

— the public gas grid;

— specifications to determine biomethane quality;

— transportation of compressed or liquefied biogas;

— transportation of biomass or digestate;

— assessment and determination whether biomass is sourced sustainably or not.