Detail of GB 6722-2003

Introduction of GB 6722-2003

1 Scope This standard specifies the safety technical requirements and supervisory work requirements of blasting operation, explosion working and storage, transportation, processing, inspection and disposal of blasting supplies. This standard is applicable to the civil engineering blasting, and unmilitary engineering blasting conducted by the Chinese People's Liberation Army and armed police forces. 2 Normative References The following standards contain provisions which, through reference in this text, constitute provisions of this standard. For dated reference, subsequent amendments to (excluding correction to), or revisions of, any of these publications do not apply. However, the parties whose enter into agreement according to these specifications are encouraged to research whether the latest editions of these labels are applied or not. For undated references, the latest edition of the normative document is applicable to these specifications.

Contents of GB 6722-2003

Contents 1 Scope 2 Normative References 3 Terms and Definitions 4 General requirements on blasting operation 4.1 Hierarchical management of blasting works 4.2 Blasting working enterprise and blasting personnel 4.3 Blast design 4.4 Blasting safety assessment 4.5 Safety supervision of blast works 4.6 Examination and approval of design 4.7 Requirements on blasting circumstances (surroundings) 4.8 Construction (works) preparation 4.9 Blasting supplies, initiating method and initiating circuit 4.10 Charging 4.11 Stemming 4.12 Blasting warning and signal 4.13 Post-blast inspection 4.14 Misfire dispose 4.15 Blasting effect monitoring 4.16 Blasting conclusion 5 Safety requirements on blasting operations 5.1 Surface blasting 5.2 Chamber blasting 5.3 Underground blasting 5.4 Demolition blasting and short-hole blasting in urban area 5.5 Underwater blasting 5.6 Metal blasting and explosive processing 5.7 Seismic survey blasting 5.8 Oil/gas well blasting 5.9 Drilling detonator blasting 5.10 Pile-well blasting 6 Allowable Safety Distance and Environmental Impact Assessment 6.1 General Rules 6.2 Allowable safety distance of blast vibration 6.3 Allowable safety distance of blasting impulsive wave 6.4 Allowable safety distance of fly-about object 6.5 Allowable safety distance of blasting material storage 6.6 Allowable internal safety distance of blasting material storage 6.7 Allowable safety distance between external power supply and electric detonating circuit 6.8 Control of blasting environment effect 7 Safety management of blasting supplies 7.1 General Policy Conditions 7.2 Purchase of blasting supplies 7.3 Transportation of blasting supplies 7.4 Storage of blasting supplies 7.5 Inspection and disposal of blasting supplies 7.6 Reworking of explosives Annex A (Normative) Annex B (Normative) Annex C (Normative)