GB20265-2019

Foot protection — Footwear protecting against chemicals

足部防护防化学品鞋

GB 20265-2019 は現行の中国強制国家規格です：Foot protection — Footwear protecting against chemicals。業界：化学品。テーマ：製品安全。施行日：2020年7月1日。

適用可否は製品範囲、認証ルート、所管当局の通知、移行規定によって異なります。コンプライアンス判断に使う前に、翻訳をご依頼いただくか公式情報源をご確認ください。

コンプライアンス概要

この概要は現在英語のみで提供しています。

適用範囲

This standard applies to footwear protecting against chemicals designed to protect the wearer's feet from chemical hazards in the workplace. It covers both Class I (footwear made of leather and other materials, excluding all-rubber or all-polymeric) and Class II (all-rubber or all-polymeric footwear). It is mandatory for all manufacturers producing chemical protective footwear for the Chinese market. The standard does not apply to footwear designed solely for protection against other hazards without chemical resistance claims.

技術要求

GB 20265-2019 specifies comprehensive technical requirements for chemical protective footwear, categorized by degradation level and permeation level. For whole footwear, the standard mandates specific design styles, upper height, and sole performance including bonding strength, water resistance, leak resistance, and slip resistance. Material requirements are detailed for the upper, lining, tongue, insole, and outsole. This includes specifications for thickness, tear resistance, tensile properties, flexing resistance, and pH value. For leather components, hexavalent chromium content must not exceed 3.0 mg/kg. The core of the standard lies in its chemical resistance requirements. Footwear must be tested against selected test chemicals from defined categories (e.g., alcohols, ketones, acids). Degradation level footwear must resist at least two chemicals, while permeation level footwear must resist at least three. Manufacturers must ensure that materials do not exhibit significant degradation or permeation beyond the specified time limits. Refer to GB/T 20991-2007 for general test method guidelines.

試験方法

Testing methods involve evaluating both physical properties and chemical resistance. Physical tests include measuring upper height, bonding strength, water and leak resistance, and slip resistance on ceramic tile and steel surfaces. Material tests cover thickness measurement, tear performance, tensile testing, and flexing resistance. For chemical resistance, the standard outlines specific degradation tests (Annex A) where samples are exposed to chemicals and assessed for changes in hardness, tear strength, and elongation. Permeation tests measure the breakthrough time of chemicals through the material, classified into five levels based on duration. Testing must be conducted in standard atmospheric conditions of (23±2)°C and (50±5)% relative humidity.

よくある質問

What products are regulated under GB 20265-2019?

GB 20265-2019 regulates footwear protecting against chemicals, including both leather-based (Class I) and all-rubber/polymeric (Class II) footwear designed to protect against chemical hazards in the workplace.

What are the key updates in GB 20265-2019 compared to previous versions?

The 2019 version replaces GB 20265-2006 and GB 20266-2006. Key updates include the addition of Class I product requirements, new classification and grading (degradation and permeation levels), modified chemical resistance requirements and test methods, and new provisions for manufacturer-provided information.

How is chemical resistance classified under GB 20265-2019?

Chemical resistance is classified into degradation level and permeation level. Degradation level footwear must resist at least two test chemicals, while permeation level footwear (Class II only) must resist at least three chemicals, with permeation times categorized into five performance levels.

The summary above provides a high-level overview of GB 20265-2019. To ensure complete compliance for your chemical protective footwear entering the Chinese market, a precise and professional translation of the full technical specifications is essential. Purchase our high-quality English translation of GB 20265-2019 today to access all detailed parameters, tables, and testing procedures.

適用のヒント

種別: 製品
CCS: C73
ICS: 13.340.50
所管部門: Ministry of Emergency Management
技術委員会: National Technical Committee on Personal Protective Equipment of Standardization Administration of China