Oslo kommune Renovasjons- og gjenvinningsetaten (REG) would like information from the market in connection with a possible coming procurement for the establishment of a system for sorting out nitrous gas bottles at Haraldrud sorting facility. Background: REG needs a system that can sort out identified nitrous oxide bottles in the existing waste flow at the plant. The system must be able to be integrated with the existing Optibag/Envac infrastructure, including existing control systems, sensors and technical interface at the system. The procurement can include, among other things: * Complete deniers * including management system and software, and system integration *Assembly * adaptations to existing installations * Testing and commissioning The objective of this market survey is to examine: * whether there are several suppliers in the market who can deliver all or parts of the relevant system, * which technical systems the market can offer * how any integration with the existing Optibag/Envac system can be implemented (technical limitations). * whether there are technical or intellectual property limitations This enquiry is only a market survey and is not a competition or obligation to hold the procurement.