ISO 5172:2006 specifies specifications and tests for blowpipes for gas welding, heating and cutting of metals. It applies to manual blowpipes for welding and heating with a nominal thermal power up to 32 000 kcal/h, and manual and machine cutting blowpipes with a cutting range up to 300 mm.

ISO 5172:2006 does not apply to air-aspirated blowpipes which are covered in ISO 9012.