| Section 426-01: General terms |
| 426-01-01 | equipment, <explosive atmospheres> | |
| 426-01-02 | Type of Protection, <explosive atmospheres> | |
| 426-01-03 | equipment grouping | |
| 426-01-04 | maximum surface temperature | |
| 426-01-05 | temperature class | |
| 426-01-06 | explosive atmosphere | |
| 426-01-07 | explosive gas atmosphere | |
| 426-01-08 | explosive dust atmosphere | |
| 426-01-09 | fixed equipment, <explosive atmospheres> | |
| 426-01-10 | personal equipment | |
| 426-01-11 | portable equipment | |
| 426-01-12 | transportable equipment | |
| 426-01-13 | Ex Component | |
| 426-01-14 | Ex Equipment | |
| 426-01-15 | EPL | |
| 426-01-16 | EPL Ma | |
| 426-01-17 | EPL Mb | |
| 426-01-18 | EPL Ga | |
| 426-01-19 | EPL Gb | |
| 426-01-20 | EPL Gc | |
| 426-01-21 | EPL Da | |
| 426-01-22 | EPL Db | |
| 426-01-23 | EPL Dc | |
| 426-01-24 | Level of Protection | |
| Section 426-02: Physical and chemical phenomena |
| 426-02-01 | auto-ignition temperature | |
| 426-02-05 | explosive test mixture | |
| 426-02-09 | lower flammable limit | |
| 426-02-10 | upper flammable limit | |
| 426-02-11 | maximum experimental safe gap | |
| 426-02-12 | minimum igniting current | |
| 426-02-14 | flash point, <explosive atmospheres> | |
| 426-02-15 | pressure piling | |
| 426-02-17 | dust, <explosive atmospheres> | |
| 426-02-18 | combustible dust | |
| 426-02-19 | conductive dust | |
| 426-02-20 | minimum ignition temperature of a dust layer | |
| 426-02-21 | minimum ignition temperature of a dust cloud | |
| 426-02-22 | hybrid mixture | |
| 426-02-23 | pyrophoric substance | |
| 426-02-24 | firedamp | |
| 426-02-25 | combustible flyings, pl | |
| 426-02-26 | gas | |
| 426-02-27 | auto-ignition | |
| 426-02-28 | ignition delay time, <flammable material> | |
| 426-02-29 | mist, <flammable material> | |
| 426-02-30 | non-conductive dust | |
| 426-02-31 | vapour | |
| 426-02-32 | relative density, <of a gas or a vapour> | |
| 426-02-33 | flammable liquid | |
| 426-02-34 | flammable gas | |
| 426-02-35 | flammable vapour | |
| 426-02-36 | boiling point | |
| 426-02-37 | vapour pressure | |
| 426-02-38 | minimum ignition energy | |
| 426-02-39 | flammable limits, pl | |
| Section 426-03: Areas and zones |
| 426-03-01 | hazardous area | |
| 426-03-02 | non-hazardous area | |
| 426-03-03 | Zone 0 | |
| 426-03-04 | Zone 1 | |
| 426-03-05 | Zone 2 | |
| 426-03-06 | source of release | |
| 426-03-10 | continuous grade of release | |
| 426-03-11 | primary grade of release | |
| 426-03-12 | secondary grade of release | |
| 426-03-13 | release rate | |
| 426-03-14 | ventilation | |
| 426-03-16 | flammable material | |
| 426-03-21 | extent of zone | |
| 426-03-22 | liquefied flammable gas | |
| 426-03-23 | Zone 20 | |
| 426-03-24 | Zone 21 | |
| 426-03-25 | Zone 22 | |
| 426-03-26 | dust containment | |
| 426-03-27 | source of dust release | |
| 426-03-28 | area, <classification of explosive atmospheres> | |
| 426-03-29 | abnormal operation | |
| 426-03-30 | zone, <classification of explosive atmospheres> | |
| Section 426-04: Construction of electrical apparatus (general) |
| 426-04-01 | enclosure, <equipment for explosive atmospheres> | |
| 426-04-02 | degree of protection of enclosure | |
| 426-04-03 | breathing device | |
| 426-04-04 | drain | |
| 426-04-05 | special fastener, <explosive atmospheres> | |
| 426-04-09 | ambient temperature, <explosive atmospheres> | |
| 426-04-10 | normal operation, <explosive atmospheres> | |
| 426-04-11 | duty cycle, <of load> | |
| 426-04-12 | clearance | |
| 426-04-13 | distance through casting compound | |
| 426-04-14 | distance through solid insulation | |
| 426-04-15 | creepage distance, <explosive atmospheres> | |
| 426-04-16 | distance under coating | |
| 426-04-17 | bushing, <explosive atmospheres> | |
| 426-04-18 | Cable Gland | |
| 426-04-19 | clamping device, <Cable Gland> | |
| 426-04-20 | compression element, <Cable Gland> | |
| 426-04-21 | sealing ring, <Cable Gland> | |
| 426-04-22 | Ex Equipment Cable Gland | |
| 426-04-23 | certificate | |
| 426-04-24 | conduit entry | |
| 426-04-25 | connection facilities, pl | |
| 426-04-26 | continuous operating temperature | |
| 426-04-28 | rated value, <explosive atmospheres> | |
| 426-04-29 | rating | |
| 426-04-30 | service temperature | |
| 426-04-31 | U, <explosive atmospheres> | |
| 426-04-32 | X, <explosive atmospheres> | |
| 426-04-33 | termination compartment | |
| 426-04-34 | dust-tight enclosure | |
| 426-04-35 | dust-protected enclosure | |
| 426-04-38 | countable fault | |
| 426-04-39 | non-countable fault | |
| 426-04-40 | infallible separation | |
| 426-04-41 | compound, <for encapsulation> | |
| 426-04-42 | safety device | |
| 426-04-43 | schedule drawing | |
| 426-04-44 | related drawing | |
| 426-04-45 | separation element | |
| 426-04-46 | protective device | |
| 426-04-47 | casting, <of a non-metallic compound> | |
| 426-04-48 | overvoltage category | |
| 426-04-49 | pollution degree | |
| 426-04-50 | rated insulation voltage | |
| 426-04-51 | recurring peak voltage | |
| 426-04-52 | galvanic isolation | |
| 426-04-53 | cable transit device, <Cable Gland> | |
| 426-04-54 | Ex Equipment Blanking Element | |
| 426-04-55 | Ex Equipment thread adapter | |
| 426-04-56 | malfunction, <explosive atmospheres> | |
| 426-04-57 | expected malfunction | |
| 426-04-58 | rare malfunction | |
| 426-04-59 | radio frequency, <explosive atmospheres> | |
| 426-04-60 | continuous transmission, <explosive atmospheres> | |
| 426-04-61 | pulsed transmission | |
| 426-04-62 | thermal initiation time | |
| 426-04-63 | threshold energy | |
| 426-04-64 | threshold power | |
| 426-04-65 | antenna gain, <explosive atmospheres> | |
| 426-04-66 | solid insulation, <explosive atmospheres> | |
| 426-04-67 | working voltage | |
| 426-04-68 | Ex Component Certificate | |
| 426-04-69 | Ex Equipment Certificate | |
| 426-04-70 | coating | |
| 426-04-71 | conformal coating | |
| 426-04-72 | factory connections, pl | |
| 426-04-73 | field-wiring connections, pl | |
| 426-04-74 | elastomer | |
| 426-04-75 | limiting temperature | |
| 426-04-76 | encapsulation, <explosive atmospheres> | |
| Section 426-06: Flameproof enclosure "D" |
| 426-06-01 | flameproof enclosure "d" | |
| 426-06-02 | flameproof joint | |
| 426-06-03 | gap, <of a flameproof joint> | |
| 426-06-05 | width of flameproof joint | |
| 426-06-07 | distance, <flameproof joint> | |
| 426-06-08 | enclosure volume, <flameproof enclosure "d"> | |
| 426-06-09 | shaft, <explosive atmospheres> | |
| 426-06-10 | operating rod | |
| 426-06-11 | quick-acting door | |
| 426-06-12 | door fixed by threaded fasteners | |
| 426-06-13 | threaded door | |
| Section 426-07: Powder filling "q" |
| 426-07-01 | powder filling "q" | |
| 426-07-02 | filling material, <powder filling> | |
| 426-07-03 | distance through filling material, <powder filling> | |
| Section 426-08: Increased safety "e" |
| 426-08-01 | increased safety "e" | |
| 426-08-03 | time tE | |
| 426-08-04 | initial starting current | |
| 426-08-05 | normal service, <machines> | |
| 426-08-06 | rated dynamic current | |
| 426-08-07 | rated short-time thermal current | |
| 426-08-08 | resistance-heating device | |
| 426-08-09 | resistance-heating unit | |
| 426-08-10 | workpiece, <resistance-heating> | |
| 426-08-11 | temperature self-limiting characteristic | |
| 426-08-12 | stabilized design | |
| 426-08-13 | starting current ratio | |
| 426-08-14 | trace heater | |
| 426-08-15 | ferrule, <explosive atmospheres> | |
| 426-08-16 | light emitting diode | |
| 426-08-17 | LED module | |
| 426-08-18 | LED package | |
| 426-08-19 | resistance heating | |
| 426-08-20 | short-circuit current, <explosive atmospheres> | |
| 426-08-21 | stator winding | |
| 426-08-22 | terminal | |
| Section 426-09: Pressurization "p" |
| 426-09-01 | pressurization "p" | |
| 426-09-02 | pressurized enclosure | |
| 426-09-03 | purging | |
| 426-09-04 | protective gas | |
| 426-09-05 | alarm, <pressurized enclosure "p"> | |
| 426-09-06 | containment system | |
| 426-09-07 | dilution | |
| 426-09-08 | dilution area | |
| 426-09-09 | enclosure volume, <pressurized enclosure "p"> | |
| 426-09-10 | flammable substance | |
| 426-09-11 | hermetically sealed device | |
| 426-09-12 | ignition-capable equipment | |
| 426-09-13 | indicator, <pressurization "p"> | |
| 426-09-14 | internal source of release | |
| 426-09-15 | leakage compensation | |
| 426-09-16 | overpressure | |
| 426-09-17 | pressurization system | |
| 426-09-18 | protective gas supply | |
| 426-09-19 | static pressurization | |
| 426-09-20 | Level of Protection "pxb" | |
| 426-09-21 | Level of Protection "pyb" | |
| 426-09-22 | Level of Protection "pzc" | |
| 426-09-23 | Type of Protection "pD" | |
| Section 426-10: Oil immersion "o" |
| 426-10-01 | oil immersion "o" | |
| 426-10-02 | protective liquid | |
| 426-10-03 | sealed equipment | |
| 426-10-04 | non-sealed equipment | |
| 426-10-05 | maximum permissible protective liquid level | |
| 426-10-06 | minimum permissible protective liquid level | |
| Section 426-11: Intrinsically safe and associated intrinsically safe electrical apparatus "i" |
| 426-11-01 | intrinsically safe circuit | |
| 426-11-02 | intrinsically safe apparatus | |
| 426-11-03 | associated apparatus | |
| 426-11-09 | simple apparatus | |
| 426-11-10 | diode safety barrier | |
| 426-11-11 | spark test apparatus, <intrinsically safe circuits> | |
| 426-11-12 | fault, <intrinsic safety "i"> | |
| 426-11-15 | maximum external capacitance | |
| 426-11-16 | maximum external inductance | |
| 426-11-17 | maximum input current | |
| 426-11-18 | maximum input power | |
| 426-11-19 | maximum input voltage | |
| 426-11-20 | maximum internal capacitance | |
| 426-11-21 | maximum internal inductance | |
| 426-11-22 | maximum output current | |
| 426-11-23 | maximum output power | |
| 426-11-24 | maximum output voltage | |
| 426-11-25 | maximum RMS AC or DC voltage | |
| 426-11-26 | maximum external inductance to resistance ratio | |
| 426-11-27 | maximum internal inductance to resistance ratio | |
| 426-11-28 | infallible component | |
| 426-11-32 | internal wiring | |
| 426-11-33 | intrinsically safe electrical system with certificate | |
| 426-11-34 | intrinsically safe electrical system without certificate | |
| 426-11-35 | descriptive system document | |
| 426-11-36 | system designer | |
| 426-11-37 | maximum cable capacitance | |
| 426-11-38 | maximum cable inductance | |
| 426-11-39 | maximum cable inductance to resistance ratio | |
| 426-11-40 | linear power supply | |
| 426-11-41 | non-linear power supply | |
| 426-11-42 | intrinsic safety "i" | |
| 426-11-43 | intrinsic safety "iD" | |
| 426-11-44 | protective extra-low voltage system | |
| 426-11-45 | safety extra-low voltage system | |
| 426-11-46 | control drawing | |
| 426-11-47 | entity concept | |
| 426-11-48 | fuse rating | |
| 426-11-49 | moulding, <explosive atmospheres> | |
| 426-11-50 | shunt safety assembly | |
| 426-11-51 | live maintenance | |
| 426-11-52 | infallible connections, pl | |
| 426-11-53 | FISCO | |
| Section 426-12: Encapsulation "m" |
| 426-12-01 | encapsulation "m" | |
| 426-12-03 | temperature range of the compound | |
| 426-12-06 | free surface | |
| 426-12-09 | switching contact | |
| 426-12-10 | adhesion | |
| 426-12-11 | encapsulation "mD" | |
| Section 426-13: Type of protection "n" |
| 426-13-01 | Type of Protection "n" | |
| 426-13-02 | non-sparking device "nA" | |
| 426-13-03 | encapsulated device "nC" | |
| 426-13-04 | enclosed-break device "nC" | |
| 426-13-05 | hermetically sealed device "nC" | |
| 426-13-06 | non-incendive component "nC" | |
| 426-13-07 | sealed device "nC" | |
| 426-13-08 | energy-limited apparatus "nL" | |
| 426-13-09 | associated energy-limited apparatus "[nL]" or "[Ex nL]" | |
| 426-13-10 | self protected energy-limited apparatus "nA nL" | |
| 426-13-11 | restricted-breathing enclosure "nR" | |
| 426-13-15 | test port | |
| 426-13-16 | normally sparking device | |
| Section 426-14: Inspection and maintenance |
| 426-14-01 | maintenance, <for explosive atmospheres> | |
| 426-14-02 | inspection, <for explosive atmospheres> | |
| 426-14-03 | visual inspection | |
| 426-14-04 | close inspection | |
| 426-14-05 | detailed inspection | |
| 426-14-06 | initial inspection | |
| 426-14-07 | periodic inspection | |
| 426-14-08 | sample inspection | |
| 426-14-09 | continuous supervision | |
| 426-14-10 | skilled personnel | |
| 426-14-11 | technical person with executive function | |
| Section 426-15: Repair and overhaul |
| 426-15-01 | serviceable condition | |
| 426-15-02 | repair, <explosive atmospheres> | |
| 426-15-04 | component part | |
| 426-15-05 | reclamation | |
| 426-15-06 | modification, <explosive atmospheres> | |
| 426-15-07 | manufacturer, <explosive atmospheres – repair and overhaul> | |
| 426-15-08 | user, <explosive atmospheres> | |
| 426-15-09 | repair facility | |
| 426-15-10 | certification | |
| 426-15-12 | copy winding | |
| 426-15-13 | alteration | |
| 426-15-14 | competence | |
| 426-15-15 | Ex competent person | |
| 426-15-16 | examination, <of a person> | |
| 426-15-17 | overhaul | |
| 426-15-18 | qualification, <of a person> | |
| Section 426-16: Protection by enclosure (dust) "tD" |
| 426-16-01 | dust ignition protection "tD" | |
| 426-16-02 | dust ignition protection by enclosure "t" | |
| Section 426-20: Trace heating |
| 426-20-01 | ambient temperature, <trace heating> | |
| 426-20-02 | branch circuit, <trace heating> | |
| 426-20-03 | cold lead, <trace heating> | |
| 426-20-04 | end termination, <trace heating> | |
| 426-20-05 | power termination, <trace heating> | |
| 426-20-06 | tee, <trace heating> | |
| 426-20-07 | dead leg, <trace heating> | |
| 426-20-08 | design loading, <trace heating> | |
| 426-20-09 | factory-fabricated trace heater | |
| 426-20-10 | field-assembled trace heater | |
| 426-20-11 | heat loss, <trace heating> | |
| 426-20-12 | heat sink, <trace heating> | |
| 426-20-13 | heat-transfer aids, <trace heating> pl | |
| 426-20-14 | heating pad, <trace heating> | |
| 426-20-15 | heating panel, <trace heating> | |
| 426-20-16 | high-limit temperature, <trace heating> | |
| 426-20-17 | maximum ambient temperature | |
| 426-20-19 | metallic covering, <trace heating> | |
| 426-20-20 | minimum ambient temperature, <trace heating> | |
| 426-20-21 | operating voltage, <trace heating> | |
| 426-20-22 | overjacket, <trace heating> | |
| 426-20-23 | power density, <trace heating> | |
| 426-20-24 | rated output, <trace heating> | |
| 426-20-26 | series trace heater, <trace heating> | |
| 426-20-27 | sheath, <trace heating> | |
| 426-20-28 | sheath temperature, <trace heating> | |
| 426-20-29 | stabilized design, <trace heating> | |
| 426-20-30 | start-up current, <trace heating> | |
| 426-20-31 | system documentation, <trace heating> | |
| 426-20-33 | temperature control device, <trace heating> | |
| 426-20-34 | temperature controller, <trace heating> | |
| 426-20-35 | temperature limiting device, <trace heating> | |
| 426-20-36 | thermal insulation, <trace heating> | |
| 426-20-37 | trace heater | |
| 426-20-38 | trace heater unit | |
| 426-20-39 | trace heating | |
| 426-20-40 | weather barrier, <trace heating> | |
| 426-20-41 | workpiece, <trace heating> | |
| 426-20-42 | controlled design | |
| 426-20-43 | electrically conductive covering | |
| 426-20-44 | temperature sensor | |
| 426-20-45 | integral components, pl | |
| 426-20-46 | maximum continuous exposure temperature, <trace heating> | |
| 426-20-47 | maximum maintain temperature, <trace heating> | |
| 426-20-48 | maximum intermittent exposure temperature, <trace heating> | |
| 426-20-49 | maintain temperature, <trace heating> | |
| 426-20-50 | maximum sheath temperature, <trace heating> | |
| 426-20-51 | maximum withstand temperature, <trace heating> | |
| 426-20-52 | minimum installation temperature, <trace heating> | |
| 426-20-53 | MI trace heater, <trace heating> | |
| 426-20-54 | outdoor exposure, <trace heating> | |
| 426-20-55 | parallel trace heater, <trace heating> | |
| 426-20-56 | rated voltage, <trace heating> | |
| 426-20-57 | trace heating system, <trace heating> | |
| 426-20-58 | trace ratio, <trace heating> | |
| Section 426-21: Installations in explosive atmospheres |
| 426-21-01 | radio-frequency identification | |
| 426-21-02 | verification dossier | |
| 426-21-03 | competent body | |
| Section 426-22: Caplights |
| 426-22-01 | caplight | |
| 426-22-02 | light source, <caplight> | |
| 426-22-03 | filament lamp, <caplight> | |
| 426-22-04 | useful working period | |
| Section 426-23: Optical radiation in explosive atmospheres |
| 426-23-01 | absorption, <for explosive atmospheres> | |
| 426-23-02 | beam diameter | |
| 426-23-03 | beam strength | |
| 426-23-04 | core, <of an optical fibre> | |
| 426-23-05 | cladding | |
| 426-23-06 | fibre bundle | |
| 426-23-07 | fibre optic terminal device | |
| 426-23-08 | inherently safe optical radiation "op is" | |
| 426-23-09 | irradiance | |
| 426-23-10 | light | |
| 426-23-11 | optical fibre | |
| 426-23-12 | optical cable | |
| 426-23-13 | radiant power | |
| 426-23-14 | optical radiation | |
| 426-23-15 | protected optical fibre cable | |
| 426-23-16 | radiant exposure | |
| 426-23-17 | protected optical radiation "op pr" | |
| 426-23-18 | optical system with interlock "op sh" | |
| Section 426-24: Combustible gas detection |
| 426-24-01 | alarm set point | |
| 426-24-02 | alarm signal | |
| 426-24-03 | alarm-only equipment | |
| 426-24-04 | albedo | |
| 426-24-05 | ambient air, <gas detection> | |
| 426-24-06 | aspirated equipment | |
| 426-24-07 | beam blocked signal | |
| 426-24-08 | catalytic sensor | |
| 426-24-09 | clean air, <gas detection> | |
| 426-24-10 | concentration, <gas detection> | |
| 426-24-11 | continuous duty equipment, <gas detection> | |
| 426-24-12 | continuous sensing, <gas detection> | |
| 426-24-13 | diffusion equipment | |
| 426-24-14 | dose, <gas detection> | |
| 426-24-15 | drift, <gas detection> | |
| 426-24-16 | electrochemical sensor | |
| 426-24-17 | flammable range | |
| 426-24-18 | fault signal | |
| 426-24-19 | final indication, <gas detection> | |
| 426-24-20 | flame ionization detector | |
| 426-24-21 | flame temperature analyzer | |
| 426-24-22 | functional check, <gas detection> | |
| 426-24-23 | gas calibration cell, <gas detection> | |
| 426-24-24 | indicating device, <gas detection> | |
| 426-24-25 | infrared absorption sensor, <gas detection> | |
| 426-24-26 | inhibition signal, <gas detection> | |
| 426-24-27 | initial calibration, <gas detection> | |
| 426-24-28 | integral concentration, <gas detection> | |
| 426-24-29 | integral sensor, <gas detection> | |
| 426-24-30 | intermittent sensing, <gas detection> | |
| 426-24-31 | latching alarm, <gas detection> | |
| 426-24-32 | measuring point, <gas detection> | |
| 426-24-33 | meteorological optical range, <gas detection> | |
| 426-24-34 | open path, <gas detection> | |
| 426-24-35 | optical axis, <gas detection> | |
| 426-24-36 | optical path, <gas detection> | |
| 426-24-37 | paramagnetic oxygen detector, <gas detection> | |
| 426-24-38 | peripheral equipment, <gas detection> | |
| 426-24-39 | photo ionisation detector, <gas detection> | |
| 426-24-40 | point detection equipment, <gas detection> | |
| 426-24-41 | poisons, <gas detection> pl | |
| 426-24-42 | portable equipment, <gas detection> | |
| 426-24-43 | personal equipment, <gas detection> | |
| 426-24-44 | recalibration, <gas detection> | |
| 426-24-45 | receiver, <gas detection> | |
| 426-24-46 | recovery time, <gas detection> | |
| 426-24-47 | release rate | |
| 426-24-48 | remote sensor, <gas detection> | |
| 426-24-49 | retroreflector, <gas detection> | |
| 426-24-50 | sample system, <gas detection> | |
| 426-24-51 | sample line, <gas detection> | |
| 426-24-52 | sampling point, <gas detection> | |
| 426-24-53 | sampling probe, <gas detection> | |
| 426-24-54 | selectivity, <gas detection> | |
| 426-24-55 | semiconductor sensor, <gas detectors> | |
| 426-24-56 | sensing element, <gas detectors> | |
| 426-24-57 | sensitivity, <gas detectors> | |
| 426-24-58 | sensor, <gas detectors> | |
| 426-24-59 | single-point sensor, <gas detection> | |
| 426-24-60 | field calibration kit | |
| 426-24-61 | special state, <gas detection> | |
| 426-24-62 | spot-reading equipment, <gas detection> | |
| 426-24-63 | stabilization, <gas detection> | |
| 426-24-64 | separate gas detection control unit | |
| 426-24-65 | stand-alone gas-detection equipment | |
| 426-24-66 | thermal conductivity sensor, <gas detection> | |
| 426-24-67 | time of response, <gas detection> | |
| 426-24-68 | toxic gas | |
| 426-24-69 | transceiver, <gas detection> | |
| 426-24-70 | transmitter, <gas detection> | |
| 426-24-71 | volume fraction | |
| 426-24-72 | warm-up time, <gas detection> | |
| 426-24-73 | zero gas, <gas detection> | |
| 426-24-74 | automatically aspirated equipment, <gas detection> | |
| 426-24-75 | mask for calibration and test | |
| 426-24-76 | equipment with integral sensor(s), <gas detection> | |
| Section 426-25: Electrostatics |
| 426-25-01 | conductive, <electrostatically> adj | |
| 426-25-02 | dissipative, <electrostatically> adj | |
| 426-25-03 | insulating, adj | |
| 426-25-04 | isolated conductor | |
| 426-25-05 | leakage resistance | |
| 426-25-06 | surface resistance, <for explosive atmospheres> | |
| 426-25-07 | surface resistivity, <for explosive atmospheres> | |
| 426-25-08 | volume resistivity, <for explosive atmospheres> | |
| 426-25-09 | conductivity, <for explosive atmospheres> | |
| 426-25-10 | relaxation time | |
| 426-25-11 | electrostatic shock | |
| 426-25-12 | multiphase liquid | |
| 426-25-13 | contaminated liquid, <electrostatics> | |
| 426-25-14 | conductor, <electrostatics> | |
| 426-25-15 | conductive footware | |
| 426-25-16 | dissipative footware | |
| 426-25-17 | dissipative clothing | |
| Section 426-26: Special protection "s" |
| 426-26-01 | special protection "s" | |
| 426-26-02 | independent verifier | |
| Section 426-27: Explosive atmospheres – Application of quality systems |
| 426-27-01 | manufacturer, <explosive atmospheres> | |
| 426-27-02 | contract | |
| 426-27-03 | customer complaint | |
| 426-27-04 | product, <Ex Equipment> | |
| 426-27-05 | protective system | |
| 426-27-06 | technical documentation | |
| 426-27-07 | manufacturer's documentation | |
| 426-27-08 | body responsible for verification | |
| Section 426-28: Non-electrical equipment (General) |
| 426-28-01 | effective ignition source | |
| 426-28-02 | equipment-related ignition source | |
| 426-28-03 | malfunction, <non-electrical equipment> | |
| 426-28-04 | maximum possible potential energy | |
| 426-28-05 | maximum surface temperature, <non-electrical equipment> | |
| 426-28-06 | non-electrical equipment | |
| 426-28-07 | normal operation, <non-electrical equipment> | |
| 426-28-08 | possible ignition source | |
| 426-28-09 | potential ignition source | |
| 426-28-10 | automatic control measure | |
| 426-28-11 | control of ignition source "b" | |
| 426-28-12 | constructional safety "c" | |
| 426-28-13 | liquid immersion "k" | |
| 426-28-14 | equipment with a sealed enclosure, <non-electrical equipment> | |
| 426-28-15 | equipment with a vented enclosure, <non-electrical equipment> | |
| 426-28-16 | Ignition-prevention device | |
| 426-28-17 | manual control measure | |
| 426-28-18 | open equipment | |
| Section 426-29: Non-electrical equipment – Mining |
| 426-29-01 | protection against firedamp explosions | |
| 426-29-02 | machinery | |
| 426-29-03 | hydraulic fluids, pl | |