9 Scientific, nautical, surveying, photographic, cinematographic, optical, [weighing,] measuring, signalling, supervision, life-saving and teaching apparatus and instruments, namely, [electronic hand held unit for detection of water ingress in thermal piping insulation,] Remotely Operated Vehicle (ROV) hull scanner, storage tank scanner, pipeline gas pig scanner, riser scanner, external pipeline scanner, fixed electric sensors for monitoring [hydrates, ice, corrosion coating and Monoethylene glycol (MEG) content,] fluid, scaling and wax deposits content for pipelines; [apparatus and instruments for conducting, switching, transforming, accumulating, regulating or controlling electricity, namely, power amplifiers, analog to digital converter, and digital to analog converter;] acoustic and electric apparatus, namely, manually or automatically operated device for conducting non-destructive testing, condition assessment and characterisation, namely, [electronic hand held unit for detection of water ingress in thermal piping insulation,] Remotely Operated Vehicle (ROV) hull scanner, [storage tank scanner,] pipeline gas pig scanner, riser scanner, external pipeline scanner, [fixed sensors for monitoring hydrates, ice, corrosion coating and Monoethylene glycol (MEG) content, fluid, scaling, wax deposits content; acoustic meters; electroacoustic transducers;] acoustic resonance apparatus, namely, manually or automatically operated device for conducting non-destructive testing, condition assessment and characterisation, namely, [electronic hand held unit for detection of water ingress in thermal piping insulation,] Remotely Operated Vehicle (ROV) hull scanner, [storage tank scanner,] pipeline gas pig scanner, riser scanner, external pipeline scanner, [fixed sensors for monitoring hydrates, ice, corrosion coating and Monoethylene glycol (MEG) content, fluid, scaling, wax deposits content;] data processing equipment and computers; computer programs and software for applying algorithms for use in non-destructive testing, condition assessment and characterisation of fluids, metallic materials, non-metallic materials and frozen fluids in the field of [aviation, aerospace, space exploration industries,] oil and gas, [IT and telecom, nuclear technology, food and beverage, consumer goods, environment, public sector industries, healthcare, rail road and land vehicle repair, transportation, defense,] energy, [construction, and shipping] recorded on computer media; computer software for resonance thickness measurements for non-destructive testing, condition assessment and characterisation of fluids, metallic materials, [non-metallic materials and gas] in the field of [aviation, aerospace, space exploration industries,] oil and gas, [IT and telecom, nuclear technology, food and beverage, consumer goods, environment, public sector industries, healthcare, rail road and land vehicle repair, transportation, defense], energy, construction, and shipping; software for acoustic resonance measurement for non-destructive testing, condition assessment and characterisation of fluids, metallic materials, non-metallic materials and gas in the field of [aviation, aerospace, space exploration industries,] oil and gas, [IT and telecom, nuclear technology, food and beverage, consumer goods, environment, public sector industries, healthcare, rail road and land vehicle repair, transportation, defense,] energy [, construction, and shipping]