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Part II REFERENCE METHOD FOR THE ANALYSIS OF NITROGEN DIOXIDE AND OXIDES OF NITROGENI1I2

Northern Ireland

Changes not yet applied. Later legislation changes this provision in ways not yet written into the text below:

ISO 7996: 1985 Ambient air—determination of the mass concentrations of nitrogen oxides—chemiluminescence methodf1.

Annotations

Commencement

I1

Sch. 6 Pt. II in operation at 1.5.2002, see reg. 1

I2

Sch. 6 in operation at 1.5.2002, see reg. 1

Footnotes

f1

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.