# The Air Quality Limit Values (Scotland) Regulations 2001, Paragraph


The reference method for the sampling and measurement of PM10 will be that described in EN 12341 “Air Quality – Field Test Procedure to Demonstrate Reference Equivalence of Sampling Methods for the PM10 fraction of particulate matter". The measurement principle is based on the collection on a filter of the PM10 fraction of ambient particulate matter and the gravimetric mass determination.

---
Source: https://www.legislation.gov.uk/ssi/2001/224/schedule/6/part/IV/paragraph/wrapper22n1 (the official version)
Page: https://openlegislation.uk/air-quality-limit-values-scotland-regulations-2001/schedule-6/part-IV/paragraph-wrapper22n1
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.