The Fertilisers (Sampling and Analysis) Regulations (Northern Ireland) 1991 No. 540

SCHEDULE 1 MANNER OF TAKING, MARKING, SEALING AND FASTENING UP OF SAMPLES

PART II GENERAL INSTRUCTIONS FOR THE TAKING OF SAMPLES

7.  In the case of a sampling spear its dimensions shall be appropriate to the characteristics of the sampled portion in all respects including dimensions of the container and particle size of the fertiliser.