http://www.legislation.gov.uk/id/uksi/2001/2315

SCHEDULE 6REFERENCE METHODS FOR ASSESSMENT OF CONCENTRATIONS OF SULPHUR DIOXIDE, NITROGEN DIOXIDE AND OXIDES OF NITROGEN, PARTICULATE MATTER (PM _{1 0} AND PM _{2 . 5}) AND LEAD

PART IVReference method for the sampling and measurement of PM₁₀

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 ’18. The measurement principle is based on the collection on a filter of the PM₁₀ fraction of ambient particulate matter and the gravimetric mass determination.

SCHEDULE 6REFERENCE METHODS FOR ASSESSMENT OF CONCENTRATIONS OF SULPHUR DIOXIDE, NITROGEN DIOXIDE AND OXIDES OF NITROGEN, PARTICULATE MATTER (PM 1 0 AND PM 2 . 5) AND LEAD

PART IVReference method for the sampling and measurement of PM10

SCHEDULE 6REFERENCE METHODS FOR ASSESSMENT OF CONCENTRATIONS OF SULPHUR DIOXIDE, NITROGEN DIOXIDE AND OXIDES OF NITROGEN, PARTICULATE MATTER (PM _{1 0} AND PM _{2 . 5}) AND LEAD

PART IVReference method for the sampling and measurement of PM₁₀