# Fertilisers (Sampling and Analysis) Regulations (Northern Ireland) 1996, Paragraph 7: EXPRESSION OF RESULTS


Calculate the percentage potassium content of the samples as K2O, taking into account the weight of the test sample, the volume of the aliquot portion taken for the determination and the value of the blank determination. (Conversion factor, KTPB to K2O = 0.1314).

---
Source: https://www.legislation.gov.uk/nisr/1996/513/schedule/2/part/II/chapter/5./paragraph/7 (the official version)
Page: https://openlegislation.uk/fertilisers-sampling-and-analysis-regulations-northern-ireland-1996/schedule-2/part-II/chapter-5./paragraph-7
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.