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


Dilute hydrochloric acid (HCl) solution, about 0.5 M:
4.1 Mix 1 volume of hydrochloric acid (ρ = 1.18 g/ml) with 20 volumes of water.
4.2 Hydrogen peroxide solution (30% H2O2 ρ = 1.11 g/ml), free from trace elements.

---
Source: https://www.legislation.gov.uk/nisr/1996/513/schedule/2/part/I/chapter/25c./paragraph/4 (the official version)
Page: https://openlegislation.uk/fertilisers-sampling-and-analysis-regulations-northern-ireland-1996/schedule-2/part-I/chapter-25c./paragraph-4
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.