ISO9809-1 cylinder

The ISO9809-1 standard for gas cylinders outlines the minimum requirements for the material, design, construction, and workmanship of refillable quenched and tempered seamless steel cylinders. It applies to cylinders with water capacities ranging from 0.5 litres up to and including 150 litres, used for storing compressed, liquefied, and dissolved gases. The standard covers all aspects from manufacturing processes to examination and testing during production.