IS 818 covers safety during welding and cutting operations — fire prevention, ventilation, PPE (eye filters, gloves, aprons), gas cylinder handling, electrical safety, and confined space precautions. Essential companion to IS 816 (welding code of practice).
Code of practice for safety during welding and cutting operations covering fire prevention, ventilation, eye/skin protection, gas cylinder handling, and confined space welding.
Key Values
SMAW filter shadeShade 10-12 for 100-300A
MIG/MAG filter shadeShade 10-14
Oxy-fuel cutting shadeShade 3-5
Practical Notes
! Hot work permit is mandatory before welding near combustible materials.
! Fire watch must continue for 30 minutes AFTER welding/cutting is completed.
! Gas cylinders must be stored upright, chained, and separated (oxygen 6m from fuel gas).
! Welding in confined spaces requires continuous forced ventilation AND gas monitoring.
! Never strike an arc on a gas cylinder or pressurized vessel — explosion risk.