9 Electronic publications in the nature of international standards guides, specifications sheets and manuals, corrigenda, interpretation sheets, technical reports, guides and articles in the field of certification of conformity to standards relating to equipment and products for use in explosive atmospheres, all recorded on computer media, namely, recorded on optical disks; electronic publications, namely, international standards guides, specifications sheets and manuals, corrigenda, interpretation sheets, technical reports, guides and articles featuring information regarding certification of conformity to standards relating to equipment and products for use in explosive atmospheres, all recorded on digital computer recording media; downloadable electronic publications in the nature of brochures and manuals detailing international standards guides, specifications sheets and manuals, corrigenda, interpretation informational sheets, technical reports, guides, written articles, newsletters, and books in the field of certification of conformity to standards relating to equipment and products for use in explosive atmospheres; downloadable computer software applications for mobile phones, namely, downloadable software applications for use in the certification of conformity to standards relating to equipment and products for use in explosive atmospheres; recorded computer program for use in the certification of conformity to standards relating to equipment and products for use in explosive atmospheres; apparatus and instruments for conducting, switching, transforming, accumulating, regulating or controlling the distribution or use of electricity, namely, power distribution panels, electronic power transformers for amplification, power controllers, power connectors, electric connectors, power cables, power adaptors, high-voltage power supplies, distribution boxes for electrical power, electrical power supplies, power amplifiers, power switches, electrical switches, power distribution or control machines and apparatus for conducting, switching, transforming, accumulating, regulating or controlling the distribution or use of electricity; measuring, signaling, detecting, testing, inspecting and life-saving apparatus and instruments in the nature of electric current meters; transmitters of electronic signals; electronic material testing instruments being electronic apparatus for testing compression, strength, hardness and tensile characteristics of industrial materials; electronic measuring sensors for detection and signaling of flammable or combustible materials; temperature measuring instruments for measuring the temperature of air and liquids; circuit testing instruments; gas testing instruments; gas leak testing apparatus; smoke hoods; electronic arc detection and suppressing device used in low voltage switchgear; electronic power transformers in the nature of electric transformers for amplification; power controllers; power connectors; electrical and electronic connectors; power cables; power adaptors; high-voltage power supplies; distribution boxes for electrical power; electrical power supplies; power amplifiers; power switches; electrical switches; power distribution or control machines and apparatus, namely, electrical power distribution units; light switches; high-frequency switches; electric batteries; rechargeable batteries; battery chargers; smoke detectors; fire detectors; flame detection apparatus in the nature of fire and smoke detectors; gas flow monitors; electrical cables; thermostats; electrical terminal blocks; electric coils; fire extinguishing systems; fire-extinguishing apparatus; electrical plugs and sockets; fire alarms; telecommunications transmitters; monitoring and electronic surveillance apparatus, other than for medical use, namely, television monitoring apparatus; electric voltage detection monitoring devices; video cameras adapted for monitoring purposes; computers and computer peripheral devices; sound measuring apparatus in the nature of sound level meters; protection devices for personal use against accidents, namely, clothing for protection against accidents; clothing, footwear and headwear for protection against accidents, irradiation and fire; measurement apparatus sensors in the nature of ultrasonic sensors, other than for medical use; flowmeters; encoders; data processing equipment in the nature of scanners; luminous beacons; switchboxes