Where an organisation used for sampling and analysis of indoor air or for analysis of emissions from building products is not accredited to ISO / IEC 17025, the organisation must be accredited either by a national accreditation body, or by a member of any one of the following accreditation groups:
The accreditation must specifically covering sampling and analysis of indoor air or analysis of emissions from building products.
For indoor air sampling, alternative qualifications/accreditation to ISO 17025 (or the listed accreditations) could be considered compliant where this demonstrates that the organisation/individual performing the sampling has a suitable level of competence and experience. Any alternative qualifications will need to be reviewed through a technical query.
07/05/2021: Added clarification regarding alternative qualifications