GB12950-1991

Safety regulations for seismic exploration blasting practices

地震勘探爆炸安全规程

GB 12950-1991 é uma norma nacional chinesa obrigatória vigente: Safety regulations for seismic exploration blasting practices. Setor: Máquinas. Foco: Segurança de produtos. Entrada em vigor: 1 de mar. de 1992.

A aplicabilidade depende do escopo do produto, da via de certificação, dos avisos da autoridade competente e das regras de transição. Solicite uma tradução ou verifique a fonte antes de usar este registro em uma decisão de conformidade.

Visão geral de conformidade

Esta visão geral está disponível por enquanto apenas em inglês.

Escopo e aplicabilidade

This standard applies to all seismic exploration units that use explosive materials. It establishes unified regulations for the transportation, storage, and usage of explosives, detonators, and detonating cords in seismic operations. It is mandatory for all seismic exploration units operating within China. This standard does not cover non-explosive seismic sources.

Requisitos técnicos

The standard specifies comprehensive safety requirements for the transportation of explosive materials, including regulations for vehicle, vessel, and animal transport. It mandates that explosives and detonators must be transported separately under most conditions, with strict limits on quantities and vehicle speeds. Transport vehicles must be equipped with anti-static devices and fire extinguishing equipment. For the storage and management of explosives, the standard details the setup requirements for warehouses, including mandatory safety distances between storage facilities based on explosive type and quantity. It outlines the classification of main and temporary storage facilities and establishes strict accounting procedures for the receipt and dispatch of explosive materials. Warehouses must be constructed with non-combustible materials and equipped with lightning protection systems. Regarding the usage of explosives, the standard provides detailed operational procedures for both land and water blasting operations. It defines danger zones and safe distances to protect personnel, buildings, and infrastructure. Only certified blasters are permitted to conduct blasting operations. The standard also includes specific protocols for handling misfires.

Métodos de ensaio

This standard primarily utilizes mathematical formulas to calculate safety distances and impact ranges rather than traditional laboratory testing methods. Key evaluation procedures include calculating the safe distance between explosive storage magazines to prevent sympathetic detonation, and determining the impact distance of blasting operations on surrounding structures based on explosive quantity and geological conditions. These calculations ensure compliance with seismic safety velocity limits.

Perguntas frequentes

What products are regulated under GB 12950-1991?

GB 12950-1991 regulates the handling of explosive materials used in seismic exploration, including various types of explosives, detonators, and detonating cords.

Does GB 12950-1991 apply to water-based seismic exploration?

Yes, the standard includes specific requirements for water blasting operations, covering vessel safety, buoy marking, and safe distances for underwater explosions.

Are there specific storage requirements for explosives in this standard?

Yes, it mandates strict warehouse setup guidelines, including safety distances between storage facilities, accounting procedures, and the separation of incompatible explosive types.

The summary above provides a high-level overview of GB 12950-1991. To ensure complete compliance for your seismic exploration operations entering the Chinese market, a precise and professional translation of the full technical specifications is essential. Purchase our high-quality English translation of GB 12950-1991 today to access all detailed parameters, safety distance formulas, and operational procedures.

Indicações de aplicabilidade

Tipo: Segurança
CCS: D10
Órgão competente: Ministry of Natural Resources (Land)
Comitê técnico: National Technical Committee on Natural Resources and Territorial Spatial Planning of Standardization Administration of China

Relações

Substituída por:GB 12950-2025 (Futura)