4. The weight or volume, as appropriate, of each final sample shall not be less than the following:
(a)solid fertilisers (except as mentioned in sub-paragraph (b) below) | 500 g |
(b)ammonium nitrate fertilisers sampled for testing in accordance with method 16 in Part I of Schedule 2 | 1 kg |
(c)fluid fertilisers | 500 ml. |