High-torque impact tools generate friction and sparks. ISO 25760 recommends manual or low-speed power tools only. If an impact wrench is used (rarely allowed), it must be pneumatic and spark-proof.
This standard provides essential technical infrastructure for several sectors within the global gas industry:
Manage the of materials recovered from the sea. 📝 Key Components of the Standard
The is more than a document—it is an operational shield. For any workshop that handles gas cylinders, having this standard on file is non-negotiable. It provides the legal and technical framework to ensure that a routine maintenance task does not become a workplace disaster.
This is where comes into play. Officially titled "Gas cylinders — Operational procedures for the safe removal of valves from gas cylinders," this international standard provides a codified, risk-based methodology for one of the most dangerous maintenance tasks in the industry: taking a valve off a gas cylinder.
Gas cylinders must be routinely devalved for periodic hydrostatic testing, interior cleaning, changing gas services, replacing broken components, or decommissioning. However, if residual pressure remains trapped inside the vessel, unscrewing the valve can turn it into a high-velocity projectile.
Specialized techniques for removing valves while a cylinder remains under pressure (common in the LPG industry) are explicitly not included .
: It is intended for gas suppliers, testing facility operators, and authorized maintenance personnel. It addresses risks from pressurized gas mixtures but does not cover mechanical issues unrelated to gas pressure or specialized under-pressure devalving for LPG. Key Hazards
The ISO 25760 PDF structural breakdown dictates exact step-by-step methodologies for handling regular, as well as complex, blocked valves. 1. Pre-Operational Inspection and Sorting
The provides technical guidance to prevent these catastrophic events. Safe Devalving Procedures in ISO 25760
Once zero energy is verified, the cylinder is mounted to a devalving machine. The alignment, choice of torque, and clamping pressure must match the cylinder configuration to prevent damaging the neck threads. 👥 Targeted Stakeholders