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The Air Quality Limit Values (Scotland) Regulations 2001

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Regulation 7(6)

SCHEDULE 6REFERENCE METHODS FOR ASSESSMENT OF CONCENTRATIONS OF SULPHUR DIOXIDE, NITROGEN DIOXIDE AND OXIDES OF NITROGEN, PARTICULATE MATTER (PM10 AND PM2.5) AND LEAD

PART IREFERENCE METHOD FOR THE ANALYSIS OF SULPHUR DIOXIDE:

ISO/FDIS 10498 (Standard in draft) Ambient air – determination of sulphur dioxide – ultraviolet fluorescence method(1).

PART IIREFERENCE METHOD FOR THE ANALYSIS OF NITROGEN DIOXIDE AND OXIDES OF NITROGEN:

ISO 7996: 1985 Ambient air – determination of the mass concentrations of nitrogen oxides – chemiluminescence method(2).

PART IIIAREFERENCE METHOD FOR THE SAMPLING OF LEAD:

The reference method for the sampling of lead will be that described in the Annex to Directive 82/884/EEC(3) until such time as the limit value in Schedule 1 to these Regulations is to be met, when the reference method will be that for PM10 as laid down in Part IV of this Schedule.

PART IIIBREFERENCE METHOD FOR THE ANALYSIS OF LEAD:

ISO 9855: 1993 Ambient air – Determination of the particulate lead content of aerosols collected in filters. Atomic absorption spectroscopy method(4).

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”(5). The measurement principle is based on the collection on a filter of the PM10 fraction of ambient particulate matter and the gravimetric mass determination.

(1)

Copies of these International Standards Organisation publications can be purchased from the British Standards Institution “BSI” sales department either by telephone on 020-8996-9001 or by post from the BSI, Standards House, 389 Chiswick High Road, London W4 4AL.

(2)

Copies of these International Standards Organisation publications can be purchased from the British Standards Institution “BSI” sales department either by telephone on 020-8996-9001 or by post from the BSI, Standards House, 389 Chiswick High Road, London W4 4AL.

(3)

O.J. No. L 378, 31.12.82, p.15.

(4)

Copies of these International Standards Organisation publications can be purchased from the British Standards Institution “BSI” sales department either by telephone on 020-8996-9001 or by post from the BSI, Standards House, 389 Chiswick High Road, London W4 4AL.

(5)

European Standards Institute “CEN” publication reference BSEN 12341, obtainable from the British Standards Institute “BSI” as for footnote (a) above

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