# The Feeding Stuffs (Sampling and Analysis) Regulations 1999, Paragraph 4: Apparatus


4.1 Spectrophotometer, with 10 mm silica cells.
4.2 Percolation tubes, glass. Upper part: approximately 240 mm long, 18 mm internal diameter, lower part: approximately 120 mm long, 8 mm internal diameter.

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Source: https://www.legislation.gov.uk/uksi/1999/1663/schedule/2/part/4/paragraph/4 (the official version)
Page: https://openlegislation.uk/feeding-stuffs-sampling-and-analysis-regulations-1999/schedule-2/part-4/paragraph-4
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.