GB28931-2024

Hygienic requirements for chlorine dioxide disinfectant generator

二氧化氯消毒剂发生器卫生要求

GB 28931-2024은(는) 현행 중국 강제 국가 표준입니다: Hygienic requirements for chlorine dioxide disinfectant generator. 산업: 식품. 주제: 제품 안전. 시행일: 2025년 7월 1일.

적용 여부는 제품 범위, 인증 경로, 주관 당국 공고, 전환 규정에 따라 달라집니다. 컴플라이언스 판단에 사용하기 전에 번역을 의뢰하거나 공식 출처를 확인하세요.

컴플라이언스 개요

이 개요는 현재 영어로만 제공됩니다.

적용 범위

This standard specifies the hygienic requirements for chlorine dioxide disinfectant generators produced via chemical reactions. It applies to chemical-based chlorine dioxide generators designed for disinfecting water, air, object surfaces, and medical instruments. It does not apply to non-chemical generators or other types of disinfection equipment. Manufacturers must ensure their products meet these mandatory specifications before entering the Chinese market.

기술 요구 사항

The standard outlines raw material requirements, specifying that chemical reagents (such as hydrochloric acid, sodium chlorate, and sodium chlorite) must comply with corresponding Chinese national standards to ensure hygienic safety. It details generator structure and safety requirements, mandating systems for raw material supply, heating, reaction, absorption, measurement control, and safety. The equipment must feature automatic protection and alarm shutdown functions in case of failure. Generators used for drinking water disinfection must have a gas-liquid separation function. The standard specifies technical indicators, including output fluctuation ranges, chlorine dioxide purity (which must be ≥90% for pure generators), yield rates, and physicochemical parameters (such as pH value and appearance). It also outlines drinking water disinfection control methods for varying flow conditions. It establishes disinfection efficacy requirements for various applications, including drinking water, air, and medical instruments. Microbial kill rates must meet specific log values or kill rates, referencing standards like GB 27948 and GB 27952 for specific disinfection targets.

시험 방법

The standard outlines procedures for evaluating disinfection efficacy and determining chlorine dioxide content. Appendix B provides two normative methods for chlorine dioxide content determination: the UV-Vis spectrophotometry method (measuring absorbance at 430 nm) and the five-step iodometric method. Testing for specific disinfection targets references established protocols such as WS/T 10009 and the Hygienic Safety Evaluation Specification for Drinking Water Disinfectants.

자주 묻는 질문

What products are regulated under GB 28931-2024?

It applies to chlorine dioxide disinfectant generators that produce the disinfectant via chemical reactions, commonly used for water, air, and surface disinfection.

When is the implementation date for GB 28931-2024?

The standard was issued on June 25, 2024, and will be implemented on July 1, 2025. Products manufactured before this date that comply with the previous version can be sold until their expiration date.

How does the standard address drinking water disinfection?

It requires generators used for drinking water to have a gas-liquid separation function and mandates strict compliance with GB 5749 for microbial indicators, chlorine dioxide residual, and byproduct limits.

The summary above provides a high-level overview of GB 28931-2024. To ensure complete compliance for your products entering the Chinese market, a precise and professional translation of the full technical specifications is essential. Purchase our high-quality English translation of GB 28931-2024 today to access all detailed parameters, tables, and testing procedures.

적용 참고 사항

유형: 보건 위생
CCS: C59
ICS: 11.080
주관 부처: National Disease Control and Prevention Administration
기술 위원회: National Disease Control and Prevention Administration