# The Fertilisers (Amendment) Regulations 1997, Schedule 1


Urea-ammonium sulphate
Product obtained chemically from urea and ammonium sulphate containing not less than 30% nitrogen (N).
Minimum ammoniacal nitrogen content: 4%.
Minimum sulphur content expressed as sulphur trioxide: 12%.
Amount of:
Total nitrogen:
Ammoniacal nitrogen;
Ureic nitrogen;
Water-soluble sulphur trioxide;
Maximum biuret content: 0.9%.
0.5
} As set out in paragraph
} 7(a) of this Schedule
0.9

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Source: https://www.legislation.gov.uk/uksi/1997/1543/schedule/1 (the official version)
Page: https://openlegislation.uk/fertilisers-amendment-regulations-1997/schedule-1
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.