Technical advisory and consultation services being testing, modification and approval of gas and cryogenic fluid storage and distribution equipment and including technical advisory and consultation services in respect of gas separation and processing plants, sewerage treatment plants, gas supply schemes and pipeline installation, repair of gas welding equipment and spray painting equipment, medical equipment for the administration of gases and resuscitation equipment, gauges and pressure gauges, flowmeters, manifolds, regulators being standard and dual stage regulators, high flow regulators, pipeline regulators, high pressure regulators, hydrogen regulators, ethylene regulators, water regulators, regulators for corrosive, ultra-pure gases, special gas mixtures and other speciality gas or gases, valves being control valves, distribution valves, measuring valves and safety valves and all other types of valves used in gas storage and distribution, but excluding technical advisory and consultation services in relation to electrical and electronic components