CB/T 4549-2024 in English

Background of standard technology evolution

This standard inherits and develops the requirements of AQ3010, SB/T10745 and other specifications, and adds an electrostatic control flow rate threshold (refueling ≤7m/s, oil transfer ≤4.5m/s) and a triple confirmation mechanism (before/during/after operation) to target the special risks of equipment such as oil tankers and tank trucks in ship construction scenarios. Compared with the old version, the main enhancements are:

Core management framework

4.1-4.6 Multi-department responsibility matrix

Establish a collaborative system with the operation organization department as the core:

• The process technology department must provide the oil circuit schematic diagram (mandatory requirement for the first operation)
• The quality management department is responsible for the tightness inspection (≥0.25MPa pressure test)
• The material department needs to sign a safety technology agreement and verify the supplier's qualifications

Key points for operation risk control

7.1 16 preparations before operation

Key control items:

1. Anti-static equipment (surface resistance ≤10⁸Ω)
2. Flame arrester installation (tank truck exhaust pipe)
3. Ground resistance detection (≤10Ω)

7.2 8 prohibitions during operation

Including: prohibiting refueling through vent pipes, strong convective weather operations, simultaneous open flame operations, etc. Special attention:

Implementation suggestions

Standardized process construction

It is recommended that enterprises refer to Appendix B to establish:

Personnel training focus

Special training required: Oil and gas separator operation, explosion-proof tool use specifications, oil spill recovery device (oil boom deployment angle ≤45°)