GB 1886.313-2020 English PDF (GB1886.313-2020)

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GB 1886.313-2020: National food safety standard - Food additive - Diphenyl ethers
GB 1886.313-2020
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
National Food Safety Standard - Food Additive -
Diphenyl Ethers
ISSUED ON: SEPTEMBER 11, 2020
IMPLEMENTED ON: MARCH 11, 2021
Issued by: National Health Commission of the PRC;
State Administration for Market Regulation.
Table of Contents
1 Scope ... 3
2 Molecular Formula, Structural Formula, and Relative Molecular Mass ... 3
3 Technical Requirements ... 3
Appendix A Test Methods ... 5
Appendix B Infrared Absorption Spectrum of Diphenyl Ether ... 6
National Food Safety Standard - Food Additive -
Diphenyl Ethers
1 Scope
This Standard is applicable to the food additive of diphenyl ether made from phenol
and chlorobenzene.
2 Molecular Formula, Structural Formula, and Relative
Molecular Mass
2.1 Molecular formula
C12H10O
2.2 Structural formula
2.3 Relative molecular mass
170.21 (according to 2018 international relative atomic mass)
3 Technical Requirements
3.1 Sensory requirements
The sensory requirements shall comply with the provisions of Table 1.
Table 1 -- Sensory Requirements
Appendix A
Test Methods
A.1 General rules
Unless otherwise specified in this Standard, the purity of the used reagents shall be
above the analytical purity; and the standard solutions, formulations, and products for
the determination of the used standard titration solutions and impurities shall be
prepared according to the provisions of GB/T 601, GB/T 602, and GB/T 603. The test
water shall comply with the provisions of Class-III water specified in GB/T 6682. The
solution used in the test refers to an aqueous solution when it is not specified which
solvent is used for preparation.
A.2 Identification test
Use attenuated total reflection infrared spectroscopy (ATR method) to measure the
infrared absorption spectrum in accordance with GB/T 6040; the measured infrared
spectrum shall be consistent with the standard diphenyl ether spectrum (see Appendix
B).