Applicable to the determination of arsenic quantities greater than 0.1 mg/3kg by reference to the general method of BS 4404, possession of which is essential.Cross References:BS 4404BS 4258:Part 1BS 4258:Part 2BS 4258:Part 3BS 4258:Part 4BS 4258:Part 5BS 4258:Part 7BS 4258:Part 8BS 4258:Part 9BS 4258:Part 10BS 4258:Part 11