China Proposes New Cosmetic Testing Methods for Microbial Control and Component Analysis

Published on：2026-07-22

On June 21, 2026, China's National Institutes for Food and Drug Control (NIFDC) issued a notice soliciting public comments on two cosmetic testing standards. Comments are invited until August 30, 2026. The two draft standards include Detection of Pseudomonas aeruginosa in Cosmetics and Determination of Ethanol and Other 39 Components in Cosmetics.

**Detection of Pseudomonas aeruginosa in Cosmetics**

Currently, the main testing methods for Pseudomonas aeruginosa in China include those specified in the Chinese Pharmacopoeia and GB 8538-2022 National Food Safety Standard – Methods for Examination of Drinking Natural Mineral Water.

Internationally, commonly referenced methods for the detection of Pseudomonas aeruginosa include ISO 22717:2015 Cosmetics - Microbiology - Detection of Pseudomonas aeruginosa and USP <62> Microbiological Examination of Nonsterile Products: Tests for Specified Microorganisms.

Determination of Ethanol and Other 39 Components in Cosmetics

No publicly available global standards specifically addressing the determination of ethanol and the other 39 components in cosmetics have been identified.

The relevant information on the 40 components, including their Chinese names, English names, CAS numbers, molecular formulas, relative molecular masses, and purity requirements, is provided below:

No.	Chinese Name	English Name	CAS No.	Molecular Formula	Relative Molecular Mass	Purity (%)
1	乙醇	Ethanol	64-17-5	C₂H₆O	46.07	≥98
2	乙醚	Diethyl ether	60-29-7	C₄H₁₀O	74.12	≥98
3	丙酮	Acetone	67-64-1	C₃H₆O	58.08	≥98
4	甲酸乙酯	Ethyl formate	109-94-4	C₃H₆O₂	74.08	≥98
5	异丙醇	Isopropanol	67-63-0	C₃H₈O	60.10	≥98
6	乙腈	Acetonitrile	75-05-8	C₂H₃N	41.05	≥98
7	乙酸甲酯	Methyl acetate	79-20-9	C₃H₆O₂	74.08	≥98
8	二氯甲烷	Dichloromethane	75-09-2	CH₂Cl₂	84.93	≥98
9a	1,2-二氯乙烯（反式）	trans-1,2-Dichloroethylene	156-60-5	C₂H₂Cl₂	96.94	≥98
10	甲基叔丁基醚	tert-Butyl methyl ether	1634-04-4	C₅H₁₂O	88.15	≥98
11	1,1-二氯乙烷	1,1-Dichloroethane	75-34-3	C₂H₄Cl₂	98.96	≥98
12	正丙醇	1-Propanol	71-23-8	C₃H₈O	60.10	≥98
9b	1,2-二氯乙烯（顺式）	cis-1,2-Dichloroethylene	156-59-2	C₂H₂Cl₂	96.94	≥98
13	2-丁酮	Methyl ethyl ketone	78-93-3	C₄H₈O	72.11	≥98
14	乙酸乙酯	Ethyl acetate	141-78-6	C₄H₈O₂	88.11	≥98
15	四氢呋喃	Tetrahydrofuran	109-99-9	C₄H₈O	72.11	≥98
16	三氯甲烷	Chloroform	67-66-3	CHCl₃	119.38	≥98
17	仲丁醇	sec-Butanol	78-92-2	C₄H₁₀O	74.12	≥98
18	环己烷	Cyclohexane	110-82-7	C₆H₁₂	84.16	≥98
19	四氯化碳	Carbon tetrachloride	56-23-5	CCl₄	153.82	≥98
20	苯	Benzene	71-43-2	C₆H₆	78.11	≥98
21	1,2-二氯乙烷	1,2-Dichloroethane	107-06-2	C₂H₄Cl₂	98.96	≥98
22	异丁醇	Isobutanol	78-83-1	C₄H₁₀O	74.12	≥98
23	乙酸异丙酯	Isopropyl acetate	108-21-4	C₅H₁₀O₂	102.13	≥98
24	三氯乙烯	Trichloroethylene	79-01-6	C₂HCl₃	131.39	≥98
25	正丁醇	1-Butanol	71-36-3	C₄H₁₀O	74.12	≥98
26	乙酸丙酯	Propyl acetate	109-60-4	C₅H₁₀O₂	102.13	≥98
27	4-甲基-2-戊酮	4-Methyl-2-pentanone	108-10-1	C₆H₁₂O	100.16	≥98
28	甲苯	Toluene	108-88-3	C₇H₈	92.14	≥98
29	异戊醇	Isoamyl alcohol	123-51-3	C₅H₁₂O	88.15	≥98
30	乙酸异丁酯	Isobutyl acetate	110-19-0	C₆H₁₂O₂	116.16	≥98
31	四氯乙烯	Tetrachloroethylene	127-18-4	C₂Cl₄	165.83	≥98
32	正戊醇	1-Pentanol	71-41-0	C₅H₁₂O	88.15	≥98
33	乙酸丁酯	Butyl acetate	123-86-4	C₆H₁₂O₂	116.16	≥98
34	乙基苯	Ethylbenzene	100-41-4	C₈H₁₀	106.17	≥98
35	对二甲苯	p-Xylene	106-42-3	C₈H₁₀	106.17	≥98
36	间二甲苯	m-Xylene	108-38-3	C₈H₁₀	106.17	≥98
37	乙酸异戊酯	Isoamyl acetate	123-92-2	C₇H₁₄O₂	130.19	≥98
38	邻二甲苯	o-Xylene	95-47-6	C₈H₁₀	106.17	≥98
39	苯乙烯	Styrene	100-42-5	C₈H₈	104.15	≥98
40	异丙苯	Isopropylbenzene	98-82-8	C₉H₁₂	120.19	≥98

The structure and format of the two draft standards mainly follow the microbiological testing methods included in the Safety and Technical Standards for Cosmetics (2015 Edition), facilitating their understanding and application by professionals involved in cosmetic testing.

Upon issuance, the two standards are expected to be incorporated into the Safety and Technical Standards for Cosmetics (2015 Edition), with a proposed transition period of .

Official Link:

https://www.nifdc.org.cn/nifdc/xxgk/ggtzh/tongzhi/202607211930582131911.html

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China Clarifies Implementation Requirements for Revisions to Safety and Technical Standards for Cosmetics

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Detection of Pseudomonas aeruginosa in Cosmetics

Determination of Ethanol and Other 39 Components in Cosmetics

**Detection of Pseudomonas aeruginosa in Cosmetics**