# Fertilisers (Sampling and Analysis) Regulations (Northern Ireland) 1996, Paragraph 4: APPARATUS


4.1 Filter crucibles with a porosity of 5 to 20 microns.
4.2 Oven regulated to 120°C ± 10°C.

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Source: https://www.legislation.gov.uk/nisr/1996/513/schedule/2/part/II/chapter/5./paragraph/4 (the official version)
Page: https://openlegislation.uk/fertilisers-sampling-and-analysis-regulations-northern-ireland-1996/schedule-2/part-II/chapter-5./paragraph-4
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.