Maintenance of air quality monitoring equipment

Wiltshire Council is seeking quotations for a 4 year contract for the servicing and maintenance of its air quality monitoring equipment. The council has a duty under the Environment Act 1995 to assess air quality in its area. Wiltshire Council's public health and public protection service is responsible for reviewing and monitoring local air quality. The service uses both real-time and diffusion tube monitoring methods. This specification relates to the maintenance of the real time analytical monitors the council uses. In order to improve the reliability and validity of the data, it is best practice that instruments should be serviced by the manufacturer or an approved service provider and periodically checked by an independent organisation accredited to perform QA/QC checks to ISO17025:2005. Ideally servicing should be performed every six months, and within three weeks of the independent QA/QC audit. Maintenance schedules for the replacement of consumable parts, diagnostic checks and equipment overhaul should in all cases follow manufacturer's recommendations.