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The Air Quality Limit Values Regulations 2001
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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(1).
(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.
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