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GB 5009.18-2025 National Food Safety Standard Determination of Fluorine in Food

Local Title
GB 5009.18-2025 食品安全国家标准 食品中氟的测定
Country/Region
Chinese Mainland
Competent Authority
State Administration for Market Regulation;  National Health Commission
Type
Standard
Status
In force
Release Date
2025-03-16
Implementation Date
2025-09-16

This standard specifies the method for determining fluoride in food.

The first method of this standard is applicable to the determination of fluoride content in foods, excluding salt and brick tea. The second method is applicable to the determination of fluoride content in brick tea.

It includes:

1 Scope

2 Principles

3 Reagents and Materials

4 Apparatus and Equipment

5 Analysis Procedures

6 Expression of Analysis Results

7 Precision

8 Others

9 Principles

10 Reagents and Materials

11 Apparatus and Equipment

12 Analysis Procedures

13 Expression of Analysis Result

14 Precision

15 Others

Annex A Ion chromatogram

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