Worldwide implementation of ISO 23875 has produced many questions about various aspects of the standard. The most frequently asked questions will be addressed in a series of posts.
7. The device manufacturer claims their devices are ISO 23875 certified or
compliant. Is device certification a requirement of ISO 23875?
No, devices used as subcomponents in the air quality control system are not certified to the
standard. When there are specific device specifications, the manufacturer is required to meet
the specifications in the standard. The manufacturer validates their compliance by
providing a Manufacturer’s Certificate of Conformance (COC) to the specification requirements of ISO 23875 with their device. If the Manufacturer is unable or unwilling to provide documentation, then the OEM or Retrofitter cannot offer a certification of compliance to ISO 23875. OE’s and retrofitters rely upon their suppliers to comply with all necessary specifications found in relevant standards. The supplier is responsible for providing the documentation in the form of a COC. If the Manufacturer is found to have falsified the information in the COC, they can be held liable for misrepresentation. This has legal implications. Retrofitters who make unsubstantiated claims regarding compliance and certification may also be held liable.
Recommendations to anyone who is seeking to certify an enclosure under ISO 23875.
Maintain a COC file which includes a COC for every device which is required by the standard and for which the standard gives specifications.
Ensure that all required documentation under clause 6, related to the Operator’s Manual is provided. ISEEE provides a template for this document which will help accelerate an understanding of what is required in the document.
The specific certification document has its own requirements. A sample certificate is included in the ISEEE Owner’s Manual template available as a part of the ISEEE online ISO 23875 certification course.
Read and understand ISO 23875, ask questions, and pay attention to the details. There are many parts to the certification and there are no short cuts.
8. We have two dust monitors which meet the specification requirements in ISO 23875. When using the monitors, side by side, while doing the decay test, the dust concentration levels report at very different levels.
The issue may be that the two devices are looking at different particle sizes. If one of the dust monitors is measuring PM10 and the other device is measuring PM, the measurements will be very different. Check to ensure that both monitors are set to PM10.
If you find these answers helpful please repost them.
If you have additional questions that have not been addressed in one of the FAQ posts, please forward them to info@ise3.com. We will answer the questions and include them a future post. Your comments and questions are appreciated.
Comments