# The Notification of Installations Handling Hazardous Substances Regulations 1982, Part I: NAMED SUBSTANCES


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Substance
Notifiable quantity tonnes
Liquefied petroleum gas, such as commercial propane and commercial butane, and any mixtures thereof held at a pressure greater than 1.4 bar absolute
25
Liquefied petroleum gas, such as commercial propane and commercial butane, and any mixture thereof held under refrigeration at a pressure of 1.4 bar absolute or less
50
Phosgene
2
Chlorine
10
Hydrogen fluoride
10
Sulphur trioxide
15
Acrylonitrile
20
Hydrogen cyanide
20
Carbon disulphide
20
Sulphur dioxide
20
Bromine
40
Ammonia (anhydrous or as solution containing more than 50% by weight of ammonia)
100
Hydrogen
2
Ethylene oxide
5
Propylene oxide
5
tert–Butyl peroxyacetate
5
tert–Butyl peroxyisobutyrate
5
tert–Butyl peroxymaleate
5
tert–Butyl peroxy isopropyl carbonate
5
Dibenzyl peroxydicarbonate
5
2,2–Bis(tert–Butylperoxy)butane
5
1,1–Bis(tert–Butylperoxy)cyclohexane
5
Di–sec–Butyl peroxydicarbonate
5
2,2–Dihydroperoxypropane
5
Di–n–propyl peroxydicarbonate
5
Methyl ethyl ketone peroxide
5
Sodium chlorate
25
Cellulose nitrate other than—(a) cellulose nitrate to which the Explosives Act 1875 applies; or (b) solutions of cellulose nitrate where the nitrogen content of the cellulose nitrate does not exceed 12.3% by weight and the solution contains not more than 55 parts of cellulose nitrate per 100 parts by weight of solution
50
Ammonium nitrate and mixtures of ammonium nitrate where the nitrogen content derived from the ammonium nitrate exceeds 28% of the mixture by weight other than—
(a) mixtures to which the Explosives Act 1875 applies; or
(b) ammonium nitrate based products manufactured chemically for use as fertiliser which comply with Council Directive 80/876/EEC
500
Aqueous solutions containing more than 90 parts by weight of ammonium nitrate per 100 parts by weight of solution
500
Liquid oxygen
500

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Source: https://www.legislation.gov.uk/uksi/1982/1357/schedule/1/part/I (the official version)
Page: https://openlegislation.uk/notification-of-installations-handling-hazardous-substances-regulations-1982/schedule-1/part-I
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.