Paragraph 4 F1

Performance criteria of the instrumental method of analysis

(a)

The detection limit for lead and cadmium must be equal to or lower than— 0,1 mg/litre for lead, 0,01 mg/litre for cadmium.

The detection limit is defined as the concentration of the element in the 4 % acetic acid solution, as referred to in paragraph 3(a) which gives a signal equal to twice the background noise of the instrument.

(b)

The limit of quantification for lead and cadmium must be equal to or lower than— 0,2 mg/litre for lead, 0,02 mg/litre for cadmium.

(c)

Recovery - the recovery of lead and cadmium added to the 4 % acetic acid solution, as referred to in paragraph 3(a) must lie within 80-120 % of the added amount.

(d)

Specificity - the instrumental method of analysis used must be free from matrix and spectral interferences.

Annotations

Textual amendments

F1: Schs. 3-5 inserted (31.12.2020) by The Food and Feed Safety and Hygiene (EU Exit) (Scotland) (Amendment) Regulations 2019 (S.S.I. 2019/52), regs. 1(1), 10(8); 2020 c. 1, Sch. 5 para. 1(1)

Notes on Schedule 4

Modifications

C1: Sch. 4 extended (N.I.) (with modifications) (1.10.2023) by The Windsor Framework (Retail Movement Scheme: Public Health, Marketing and Organic Product Standards and Miscellaneous Provisions) Regulations 2023 (S.I. 2023/959), regs. 1(2), 4(b), Sch. 2 (with regs. 7, 8)