A recovery cylinder must not be filled more than what percentage of its capacity by weight?

A recovery cylinder must not be filled more than 80% of its capacity by weight to ensure safety and compliance with regulations. This limit allows for the expansion of refrigerants when they are recovered, as the gas can increase in pressure and volume under certain conditions, such as temperature changes. If the cylinder is filled beyond this 80% threshold, there is a risk of over-pressurization, which could lead to dangerous situations, such as ruptures or leaks. This regulation helps maintain the integrity of the cylinder and ensures safe handling during recovery operations. Understanding this limit is essential for anyone involved in the recovery and recycling of refrigerants, as it demonstrates proper practices in protecting both the user and the environment from the potential hazards associated with refrigerant gases.