Control of Major Accident Hazards Regulations (Northern Ireland) 2000

NOTES

Ammonium nitrate (350/2500)

1.  This applies to ammonium nitrate and ammonium nitrate compounds in which the nitrogen content as a result of the ammonium nitrate is more than 28 per cent by weight (compounds other than those referred to in Note 2) and to aqueous ammonium nitrate solutions in which the concentration of ammonium nitrate is more than 90 per cent by weight.

Ammonium nitrate (1250/5000)

2.  This applies to simple ammonium-nitrate based fertislisers which conform with the requirements of the Fertilisers Regulations (Northern Ireland) 1992(1) and to composite fertilisers in which the nitrogen content as a result of the ammonium nitrate is more than 28 per cent in weight (a composite fertiliser contains ammonium nitrate with phosphate or potash, or phosphate and potash).

Polychlorodibenzofurans and polychlorodibenzodioxins

3.  The quantities of polychlorodibenzofurans and polychlorodibenzo-dioxins are calculated using the following factors:

International Toxic Equivalent Factors (ITEF) for the congeners of concern (NATO/CCMS)

2, 3, 7, 8-TCDD	1
1, 2, 3, 7, 8-PeDD	0·5
1, 2, 3, 4, 7, 8-HxCDD 1, 2, 3, 6, 7, 8-HxCDD 1, 2, 3, 7, 8, 9-HxCDD	} 0·1
1, 2, 3, 4, 6, 7, 8-HpCDD	0·01
OCDD	0·001
2, 3, 7, 8-TCDF	0·1
2, 3, 4, 7, 8-PeCDF	0·5
1, 2, 3, 7, 8-PeCDF	0·05
1, 2, 3, 4, 7, 8-HxCDF 1, 2, 3, 7, 8, 9-HxCDF 1, 2, 3, 6, 7, 8-HxCDF 2, 3, 4, 6, 7, 8-HxCDF	} 0·1
1, 2, 3, 4, 6, 7, 8-HpCDF 1, 2, 3, 4, 7, 8, 9-HpCDF	} 0·01
OCDF	0·001

(T = tetra, Pe = penta, Hx = hexa, Hp = hepta, O = octa)

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S.R. 1992 No. 187 as amended by S.R. 1995 No. 49