# The Feeding Stuffs (Sampling and Analysis) Regulations 1999, Paragraph 3: Reagents


3.1 Toluene.
3.2 Sodium sulphate, anhydrous.
3.3 Buffer solution pH1: dissolve 27.2 g sodium acetate trihydrate in 300 ml IM hydrochloric acid and add 700 ml water.
3.4 Buffer solution pH 0.65: dissolve 27.2 g sodium acetate trihydrate in 400 ml IM hydrochloric acid and add 600 ml water.
3.5 Isobutylidenediurea.
3.6 internal standard solution: dilute 5 ml isopropyl acetate to 100 ml with toluene (3.1).

---
Source: https://www.legislation.gov.uk/uksi/1999/1663/schedule/2/part/5/paragraph/3 (the official version)
Page: https://openlegislation.uk/feeding-stuffs-sampling-and-analysis-regulations-1999/schedule-2/part-5/paragraph-3
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.