GB29742-2026

Safety specification for magnesium and magnesium alloys smelting

镁及镁合金冶炼安全规范

GB 29742-2026 は施行予定の中国強制国家規格です：Safety specification for magnesium and magnesium alloys smelting。業界：食品。テーマ：製品安全。施行日：2026年9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 specifies the safety technical requirements for the smelting production process of magnesium and magnesium alloys, including overall requirements, plant layout, equipment safety, electrical safety, and gas safety. It is applicable to the safety management of magnesium and magnesium alloys smelting processes. However, it is explicitly stated that this standard does not apply to electrolytic magnesium smelting.

技術要求

The standard outlines comprehensive safety management protocols, including the establishment of risk grading control and hidden danger investigation systems. Facilities must adhere to strict layout requirements, ensuring proper fire and explosion prevention measures. Fire water extinguishing facilities shall not be installed in magnesium smelting and reduction workshops; instead, specialized Class D fire extinguishers and dry sand must be utilized. Additionally, areas with dust explosion hazards must comply with GB15577 regulations. Technical requirements cover various production stages such as calcination, pelletizing, reduction, refining, and melting. For instance, horizontal and vertical tank reduction furnaces must implement specific safety interlocks and monitoring systems. During refining and casting operations, strict protocols for crucible maintenance, liquid metal handling, and personal protective equipment (PPE) are mandated. Workers must not use water or standard fire extinguishers on magnesium fires, highlighting the critical need for specialized emergency responses. Electrical safety requirements mandate proper zoning of explosion-hazardous areas and strict grounding or anti-static measures for equipment. Gas safety protocols require the installation of low-pressure monitoring alarms and emergency automatic shut-off devices for gas pipelines. Combustion devices using forced air must interlock low-pressure alarms with emergency shut-off valves. Specific requirements for coal gas, natural gas, and semi-coke oven gas systems are also detailed to prevent leaks and explosions.

試験方法

Verification of compliance is primarily achieved through document review and on-site inspection. This includes examining safety production rules, emergency plans, and confined space operation logs. For design and manufacturing processes, technical files and as-built drawings are verified. On-site inspections assess equipment operation, safety warning signs, and the implementation of maintenance and hazardous operation protocols.

よくある質問

What products are regulated under GB 29742-2026?

It regulates the safety management of magnesium and magnesium alloys smelting production processes, covering equipment, facilities, and operational safety.

Does GB 29742-2026 apply to electrolytic magnesium smelting?

No, the standard explicitly states that it does not apply to electrolytic magnesium smelting.

What are the key updates in the 2026 version compared to GB 29742-2013?

The 2026 version adds safety requirements for risk grading, confined space operations, horizontal and vertical tank reduction furnaces, and coal powder preparation, while updating gas safety and emergency plan requirements.

The summary above provides a high-level overview of GB 29742-2026. 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 29742-2026 today to access all detailed parameters, tables, and testing procedures.

適用のヒント

種別: 安全
CCS: H09
ICS: 13.100
所管部門: Ministry of Emergency Management
技術委員会: National Technical Committee on Work Safety of Standardization Administration of China