[{"data":1,"prerenderedAt":644},["ShallowReactive",2],{"site-footer-common":3,"glossary:iecex":45,"glossary-related:iecex":148},{"id":4,"extension":5,"footer":6,"meta":40,"navbar":41,"stem":43,"__hash__":44},"common\u002Fcommon.yml","yml",{"tagline":7,"links":8,"sections":9},"Acoustic cleaning intelligence for industrial fouling, soot, ash, dust and build-up.",[],[10,19,31],{"title":11,"links":12},"Product",[13,16],{"label":14,"to":15},"How it works","\u002F#product",{"label":17,"to":18},"Cost assessment","\u002F#hero",{"title":20,"links":21},"Company",[22,25,28],{"label":23,"to":24},"What we build","\u002F#about",{"label":26,"to":27},"Careers","\u002F#careers",{"label":29,"to":30},"Contact","\u002F#contact",{"title":32,"links":33},"Resources",[34,37],{"label":35,"to":36},"Blog","\u002Fresources\u002Fblog",{"label":38,"to":39},"Glossary","\u002Fglossary",{},{"links":42},[],"common","YocmZRy1AYfBbpgGVms-zhdiABlF8VTxHx6h4rDmZBA",{"id":46,"title":47,"aliases":48,"body":51,"category":129,"description":130,"extension":131,"meta":132,"navigation":133,"path":134,"relatedTerms":135,"seo":139,"sources":142,"stem":146,"term":47,"__hash__":147},"glossary\u002Fglossary\u002Fiecex.md","IECEx",[49,50],"IECEx certification","IEC Ex scheme",{"type":52,"value":53,"toc":122},"minimark",[54,61,66,80,84,102,106],[55,56,57,60],"p",{},[58,59,47],"strong",{}," is the globally-recognised certification scheme operated by the International Electrotechnical Commission (IEC) for equipment used in explosive atmospheres. IECEx certifications are accepted in most jurisdictions worldwide — Australia, Brazil, India, China, South-East Asia, the Middle East, Russia and many more.",[62,63,65],"h2",{"id":64},"relationship-to-atex","Relationship to ATEX",[55,67,68,69,74,75,79],{},"IECEx and ",[70,71,73],"a",{"href":72},"\u002Fglossary\u002Fatex-directive","ATEX"," share the same underlying technical standard (",[70,76,78],{"href":77},"\u002Fglossary\u002Fiec-60079","IEC 60079"," series). The differences are administrative — ATEX is the EU regulatory implementation; IECEx is the international voluntary certification scheme. Industrial sonic horns sold globally typically carry both ATEX and IECEx certifications to satisfy buyers in any region.",[62,81,83],{"id":82},"practical-implications","Practical implications",[85,86,87,91,94],"ul",{},[88,89,90],"li",{},"EU customers expect ATEX; many also accept IECEx",[88,92,93],{},"Asian, Middle Eastern and most other non-US customers accept IECEx",[88,95,96,97,101],{},"US customers expect ",[70,98,100],{"href":99},"\u002Fglossary\u002Fclass-i-div-1-div-2-nec","NEC Class I Div"," certification (a different framework)",[62,103,105],{"id":104},"related-terms","Related terms",[85,107,108,113,117],{},[88,109,110],{},[70,111,112],{"href":72},"ATEX directive",[88,114,115],{},[70,116,78],{"href":77},[88,118,119],{},[70,120,121],{"href":99},"Class I Div 1 \u002F Div 2 (NEC)",{"title":123,"searchDepth":124,"depth":124,"links":125},"",2,[126,127,128],{"id":64,"depth":124,"text":65},{"id":82,"depth":124,"text":83},{"id":104,"depth":124,"text":105},"standards-regulations","IECEx is the globally-recognised certification scheme operated by the International Electrotechnical Commission (IEC) for equipment used in explosive atmospheres. IECEx certifications are accepted in most jurisdictions worldwide — Australia, Brazil, India, China, South-East Asia, the Middle East, Russia and many more.","md",{},true,"\u002Fglossary\u002Fiecex",[136,137,138],"atex-directive","iec-60079","class-i-div-1-div-2-nec",{"title":140,"description":141},"IECEx — globally-recognised certification scheme for explosive-atmosphere equipment","IECEx is the global IEC certification scheme for equipment used in explosive atmospheres. Accepted in most jurisdictions outside the EU and US.",[143],{"title":144,"url":145},"Wikipedia — IECEx","https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FIECEx","glossary\u002Fiecex","OWuvpN6p1Dc7k15CE_C2QBD-FgEWRNC7frh_gfzkPk0",[149,388,507],{"id":150,"title":151,"aliases":152,"body":158,"category":129,"description":370,"extension":131,"meta":371,"navigation":133,"path":72,"relatedTerms":372,"seo":376,"sources":379,"stem":386,"term":112,"__hash__":387},"glossary\u002Fglossary\u002Fatex-directive.md","ATEX directive (2014\u002F34\u002FEU)",[73,153,154,155,156,157],"2014\u002F34\u002FEU","ATEX zones","ATEX Zone 20","ATEX Zone 21","ATEX Zone 22",{"type":52,"value":159,"toc":364},[160,176,179,182,276,305,309,316,320,337,339],[55,161,162,163,165,166,170,171,175],{},"The ",[58,164,151],{}," sets European Union requirements for equipment and protective systems used in atmospheres containing potentially explosive concentrations of gas, vapour, mist or dust. ATEX certification is mandatory in the EU for industrial equipment installed in classified hazardous areas, including most ",[70,167,169],{"href":168},"\u002Fglossary\u002Fsonic-horn","sonic-horn"," installations on coal, biomass, ",[70,172,174],{"href":173},"\u002Fglossary\u002Fwaste-to-energy","WtE",", cement, mining, fertilizer and food applications.",[62,177,154],{"id":178},"atex-zones",[55,180,181],{},"The directive classifies hazardous areas by the likelihood and persistence of an explosive atmosphere:",[183,184,185,201],"table",{},[186,187,188],"thead",{},[189,190,191,195,198],"tr",{},[192,193,194],"th",{},"Zone",[192,196,197],{},"Atmosphere type",[192,199,200],{},"Frequency \u002F duration",[202,203,204,218,230,242,254,265],"tbody",{},[189,205,206,212,215],{},[207,208,209],"td",{},[58,210,211],{},"Zone 0",[207,213,214],{},"Gas \u002F vapour \u002F mist",[207,216,217],{},"Present continuously or for long periods",[189,219,220,225,227],{},[207,221,222],{},[58,223,224],{},"Zone 1",[207,226,214],{},[207,228,229],{},"Likely to occur in normal operation",[189,231,232,237,239],{},[207,233,234],{},[58,235,236],{},"Zone 2",[207,238,214],{},[207,240,241],{},"Not likely in normal operation; brief if present",[189,243,244,249,252],{},[207,245,246],{},[58,247,248],{},"Zone 20",[207,250,251],{},"Combustible dust cloud",[207,253,217],{},[189,255,256,261,263],{},[207,257,258],{},[58,259,260],{},"Zone 21",[207,262,251],{},[207,264,229],{},[189,266,267,272,274],{},[207,268,269],{},[58,270,271],{},"Zone 22",[207,273,251],{},[207,275,241],{},[55,277,278,279,282,283,287,288,287,292,287,296,287,300,304],{},"Industrial sonic horns are most often certified for ",[58,280,281],{},"Zone 21 or Zone 22"," dust service — appropriate for ",[70,284,286],{"href":285},"\u002Fglossary\u002Fbunker-coal-bunker","coal bunkers",", ",[70,289,291],{"href":290},"\u002Fglossary\u002Ffly-ash-hopper","fly-ash hoppers",[70,293,295],{"href":294},"\u002Fglossary\u002Fsilo","biomass silos",[70,297,299],{"href":298},"\u002Fglossary\u002Fpreheater-cyclone","cement preheater cyclones",[70,301,303],{"href":302},"\u002Fglossary\u002Frecovery-boiler","recovery boilers"," and similar duty.",[62,306,308],{"id":307},"why-pneumatic-horns-suit-atex-so-well","Why pneumatic horns suit ATEX so well",[55,310,311,315],{},[70,312,314],{"href":313},"\u002Fglossary\u002Fpneumatic-acoustic-cleaner","Pneumatic acoustic cleaners"," place no electrical parts inside the dust-laden gas volume. The only ignition consideration is mechanical sparking, which is engineered out by suitable material selection. This is one of the structural reasons sonic horns are the preferred flow-aid technology for combustible-dust environments.",[62,317,319],{"id":318},"equivalent-international-standards","Equivalent international standards",[85,321,322,327,332],{},[88,323,324,326],{},[70,325,47],{"href":134}," — globally accepted equivalent scheme",[88,328,329,331],{},[70,330,121],{"href":99}," — US National Electrical Code",[88,333,334,336],{},[70,335,78],{"href":77}," — underlying technical standard",[62,338,105],{"id":104},[85,340,341,345,349,353,359],{},[88,342,343],{},[70,344,47],{"href":134},[88,346,347],{},[70,348,78],{"href":77},[88,350,351],{},[70,352,121],{"href":99},[88,354,355],{},[70,356,358],{"href":357},"\u002Fglossary\u002Fce-marking","CE marking",[88,360,361],{},[70,362,363],{"href":313},"Pneumatic acoustic cleaner",{"title":123,"searchDepth":124,"depth":124,"links":365},[366,367,368,369],{"id":178,"depth":124,"text":154},{"id":307,"depth":124,"text":308},{"id":318,"depth":124,"text":319},{"id":104,"depth":124,"text":105},"The ATEX directive (2014\u002F34\u002FEU) sets European Union requirements for equipment and protective systems used in atmospheres containing potentially explosive concentrations of gas, vapour, mist or dust. ATEX certification is mandatory in the EU for industrial equipment installed in classified hazardous areas, including most sonic-horn installations on coal, biomass, WtE, cement, mining, fertilizer and food applications.",{},[373,137,138,374,375],"iecex","ce-marking","pneumatic-acoustic-cleaner",{"title":377,"description":378},"ATEX directive (2014\u002F34\u002FEU) — EU rules for equipment in explosive atmospheres","The ATEX directive sets EU requirements for equipment used in explosive atmospheres. Categorises zones 0\u002F1\u002F2 (gas) and 20\u002F21\u002F22 (dust); industrial sonic horns are routinely certified for Zone 20\u002F21\u002F22 dust service.",[380,383],{"title":381,"url":382},"Wikipedia — ATEX directive","https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FATEX_directive",{"title":384,"url":385},"Artidor — ATEX zones explained","https:\u002F\u002Fwww.artidor.com\u002Fknowledge-base\u002Fatex-zones","glossary\u002Fatex-directive","-odAaoXTlxAKn9Ff2ktFMZkzqbJaVaoPPl_uNdaQJFY",{"id":389,"title":78,"aliases":390,"body":393,"category":129,"description":495,"extension":131,"meta":496,"navigation":133,"path":77,"relatedTerms":497,"seo":498,"sources":501,"stem":505,"term":78,"__hash__":506},"glossary\u002Fglossary\u002Fiec-60079.md",[391,392],"IEC 60079 series","explosive atmospheres standard",{"type":52,"value":394,"toc":491},[395,406,410,472,475,477],[55,396,397,399,400,402,403,405],{},[58,398,78],{}," is the International Electrotechnical Commission's standard series for equipment used in explosive atmospheres. It is the technical foundation for both ",[70,401,73],{"href":72}," certification (EU) and ",[70,404,47],{"href":134}," certification (international), defining the test methods, protection concepts (Ex d, Ex e, Ex i, Ex p, etc.) and marking requirements.",[62,407,409],{"id":408},"key-parts-of-the-series","Key parts of the series",[183,411,412,422],{},[186,413,414],{},[189,415,416,419],{},[192,417,418],{},"Part",[192,420,421],{},"Subject",[202,423,424,432,440,448,456,464],{},[189,425,426,429],{},[207,427,428],{},"60079-0",[207,430,431],{},"General requirements",[189,433,434,437],{},[207,435,436],{},"60079-1",[207,438,439],{},"Flameproof enclosures (Ex d)",[189,441,442,445],{},[207,443,444],{},"60079-7",[207,446,447],{},"Increased safety (Ex e)",[189,449,450,453],{},[207,451,452],{},"60079-11",[207,454,455],{},"Intrinsic safety (Ex i)",[189,457,458,461],{},[207,459,460],{},"60079-14",[207,462,463],{},"Electrical installation in hazardous areas",[189,465,466,469],{},[207,467,468],{},"60079-29",[207,470,471],{},"Gas detectors",[55,473,474],{},"Industrial sonic horns typically reference 60079-0 (general) plus the specific protection-concept part used for the horn's construction.",[62,476,105],{"id":104},[85,478,479,483,487],{},[88,480,481],{},[70,482,112],{"href":72},[88,484,485],{},[70,486,47],{"href":134},[88,488,489],{},[70,490,121],{"href":99},{"title":123,"searchDepth":124,"depth":124,"links":492},[493,494],{"id":408,"depth":124,"text":409},{"id":104,"depth":124,"text":105},"IEC 60079 is the International Electrotechnical Commission's standard series for equipment used in explosive atmospheres. It is the technical foundation for both ATEX certification (EU) and IECEx certification (international), defining the test methods, protection concepts (Ex d, Ex e, Ex i, Ex p, etc.) and marking requirements.",{},[136,373,138],{"title":499,"description":500},"IEC 60079 — international standard series for explosive atmospheres","IEC 60079 is the IEC's standard series for equipment used in explosive atmospheres. The technical foundation for both ATEX and IECEx certifications.",[502],{"title":503,"url":504},"Wikipedia — Electrical equipment in hazardous areas","https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FElectrical_equipment_in_hazardous_areas","glossary\u002Fiec-60079","xk-xxu2yGNydABlo0YkJFZ2eOlcA5V6YAN92v1h7ZUc",{"id":508,"title":121,"aliases":509,"body":514,"category":129,"description":633,"extension":131,"meta":634,"navigation":133,"path":99,"relatedTerms":635,"seo":636,"sources":639,"stem":641,"term":642,"__hash__":643},"glossary\u002Fglossary\u002Fclass-i-div-1-div-2-nec.md",[510,511,512,513],"NEC Class I Div 1","NEC Class I Div 2","Class I Division 1","Class I Division 2",{"type":52,"value":515,"toc":628},[516,528,532,602,605,609,612,614],[55,517,518,521,522,524,525,527],{},[58,519,520],{},"Class I Div 1 and Class I Div 2"," are the US National Electrical Code (NEC) classifications for hazardous areas where flammable gases or vapours are or could be present. The NEC framework is the dominant US standard, paralleling but not identical to the ",[70,523,73],{"href":72}," \u002F ",[70,526,47],{"href":134}," zone system used in the rest of the world.",[62,529,531],{"id":530},"nec-classes-and-divisions","NEC classes and divisions",[183,533,534,547],{},[186,535,536],{},[189,537,538,541,544],{},[192,539,540],{},"Classification",[192,542,543],{},"Equivalent ATEX zone",[192,545,546],{},"Description",[202,548,549,560,570,581,591],{},[189,550,551,554,557],{},[207,552,553],{},"Class I Div 1",[207,555,556],{},"Zone 0 \u002F Zone 1",[207,558,559],{},"Flammable gas \u002F vapour present in normal operation",[189,561,562,565,567],{},[207,563,564],{},"Class I Div 2",[207,566,236],{},[207,568,569],{},"Flammable gas \u002F vapour not present in normal operation",[189,571,572,575,578],{},[207,573,574],{},"Class II Div 1",[207,576,577],{},"Zone 20 \u002F Zone 21",[207,579,580],{},"Combustible dust present in normal operation",[189,582,583,586,588],{},[207,584,585],{},"Class II Div 2",[207,587,271],{},[207,589,590],{},"Combustible dust not present in normal operation",[189,592,593,596,599],{},[207,594,595],{},"Class III",[207,597,598],{},"n\u002Fa",[207,600,601],{},"Ignitable fibres (textiles, fine wood)",[55,603,604],{},"NEC also adopts the IEC zone system (Zone 0\u002F1\u002F2 for gas, Zone 20\u002F21\u002F22 for dust) for newer installations alongside the legacy Class\u002FDivision system.",[62,606,608],{"id":607},"practical-implications-for-sonic-horns","Practical implications for sonic horns",[55,610,611],{},"US power-plant and refinery sonic-horn purchases routinely specify Class I Div 2 or Class II Div 2 certification depending on the application. European-sourced horns typically carry both ATEX and a third-party-certified NEC equivalent to satisfy US buyers.",[62,613,105],{"id":104},[85,615,616,620,624],{},[88,617,618],{},[70,619,112],{"href":72},[88,621,622],{},[70,623,47],{"href":134},[88,625,626],{},[70,627,78],{"href":77},{"title":123,"searchDepth":124,"depth":124,"links":629},[630,631,632],{"id":530,"depth":124,"text":531},{"id":607,"depth":124,"text":608},{"id":104,"depth":124,"text":105},"Class I Div 1 and Class I Div 2 are the US National Electrical Code (NEC) classifications for hazardous areas where flammable gases or vapours are or could be present. The NEC framework is the dominant US standard, paralleling but not identical to the ATEX \u002F IECEx zone system used in the rest of the world.",{},[136,373,137],{"title":637,"description":638},"NEC Class I Division 1 and Division 2 — US hazardous-area classification","NEC Class I Div 1 and Div 2 are the US National Electrical Code's hazardous-area classifications for equipment exposed to flammable gases or vapours.",[640],{"title":503,"url":504},"glossary\u002Fclass-i-div-1-div-2-nec","Class I Div 1 and Div 2","3tTt8sFkRy0m-eO3r_EYiHkkh2_Y515BPh5LcLqBbO8",1782613755084]