ISA12.4, Instrument Purging for Reduction of Hazardous Area Classification

Scope

The committee shall survey both domestic and international practices of purging and pressurizing apparatus and related matters (such as the effects of corrosion on purged and pressurized enclosures); monitor the development of NFPA 496 and IEC 60079-2 to accomplish the Committee's stated objectives; and promote the use of purging and pressurization disciplines.

Purpose

To summarize current practices for purging and pressurizing electrical enclosures intended for use in hazardous (classified) locations and electrical enclosures containing an internal source of flammable gases or vapors.
To publish standards and practices for the construction, marking, and performance of purged and pressurized enclosures.
To submit proposals, as needed, for revisions to standards and practices outlining the various methods of purging and pressurizing enclosures to prevent ignition of flammable atmospheres (e.g., NFPA 496, IEC 60079).

ISA Meetings

For information about all upcoming ISA12 meetings, please visit www.ISA12.org.

See all ISA12.4 Standards

Contacts:

Nicholas Abbatiello Information Member Speer Equipment Inc	Richard Allen Alternate Member Honeywell Inc Phone: (215) 641-3189 Fax: (215) 641-3850
Donald Ankele Alternate Member	Michael Baucom Voting Member Bebco Industries Inc Phone: (409) 935-5743 Fax: (409) 938-4189
Sheryl Bihler Information Member	Steve Blais Information Member EGS Electrical Group Phone: (847) 268-6205
Eliana Brazda Staff Contact ISA Phone: (919) 990-9228 Fax: (919) 549-8288	Edward Briesch Voting Member UL LLC Phone: (847) 664-3174 Fax: (847) 313-3174
William Brown Information Member Maverick Engineering Phone: (281) 578-1898 Fax: (713) 469-4567	Mark Buettner Information Member Nestle Purina Petcare Phone: (314) 982-4107 Fax: (314) 982-4199
Raymond Cardinal Voting Member Bently Nevada LLC Phone: (775) 215-1988 Fax: (775) 215-2870	Mark Coppler Voting Member Managing Director Det Norske Veritas Certification Inc Phone: (412) 916-0941
Charles Corbin Information Member Charles Corbin Phone: (713) 376-9819	Hunain Dattu Information Member Solar Turbines Inc Phone: (858) 694-6237
Paul Dobrowsky Information Member Innovative Technology Services Phone: (585) 797-4462	Matt Dudones Alternate Member Expo Technologies Phone: (440) 247-5314 Fax: (440) 247-5409
Ronald Dunham Information Member Air Liquide Phone: (225) 685-4279	Dalia El Tawy Voting Member Solar Turbines, Incorporated Phone: (858) 694-6774
Russell Ellis Information Member Phone: (781) 264-8125	Al Engler Alternate Member Det Norske Veritas DNV Phone: (847) 736-3998
William Fiske Voting Member Intertek Phone: (607) 758-6286 Fax: (607) 758-6637	Richard Fontaine Voting Member FM Approvals Phone: (401) 567-5007 Fax: (401) 568-6241
Gurinder Garcha Voting Member GE Energy Phone: (518) 385-4101	Javier Garza Information Member R Stahl Inc Phone: (832) 476-1868
David Genender Voting Member Pepperl + Fuchs Inc Phone: (330) 486-0203 Fax: (330) 486-0203	David Hohenstein Alternate Member Pepperl+Fuchs Inc Phone: (330) 425-3555 Fax: (330) 425-4607
Richard Holub Voting Member The DuPont Company Inc Phone: (302) 999-5910 Fax: (302) 999-6273	Frederick Kiddle Voting Member
William Lawrence Alternate Member FM Approvals LLC Phone: (781) 255-4822 Fax: (781) 762-9375	Edmund Leubner Information Member Cooper Crouse-Hinds Phone: (315) 477-5169
Victor Maggioli Information Member Feltronics Corp Phone: (302) 547-6870 Fax: (302) 737-5472	Richard Masek Voting Member Chair CSA Group Phone: (216) 524-4990 x88228 Fax: (216) 328-8101
Evans Massey Voting Member Baldor Electric Co Phone: (864) 281-2399 Fax: (864) 382-2718	Jon McCormick Voting Member Siemens Process Analytics Phone: (918) 662-7320
Paul McGuire Information Member	Andy Mobley Information Member Advanced Control Systems Inc Phone: (651) 714-8571 Fax: (651) 714-8571
William Mostia Information Member SIS-Tech Solutions Phone: (281) 334-3169	Jeremy Neagle Information Member
Ryan Parks Alternate Member Intertek Phone: (972) 202-8778 Fax: (972) 202-8801	Vicente Ramirez Information Member Rosemount Analytical Phone: (713) 396-8787 Fax: (713) 466-8175
Chris Romano Alternate Member Pepperl+fuchs Phone: (330) 425-3555 Fax: (330) 425-4607	Chandra Sekhar Seethepalli Information Member Kuwait Oil Co Phone: +965 238 23370 Fax: +965 2398 7651
Robert Seitz Information Member Artech Engineering Phone: (907) 688-6040 Fax: (907) 688-9484	Gregory Shahnovsky Information Member Modcon Systems Ltd Phone: +972 4 9553955 Fax: +972 4 9553956
Arthur Shvartsman Information Member Intertek Phone: (972) 202-2024 Fax: (972) 202-8801	Bruce Temple Information Member Dynisco Phone: (716) 629-3872 Fax: (716) 693-9162
John Thomas Information Member Schlumberger Phone: (281) 285-8255	Rebecca Weber Alternate Member GE Energy Phone: (864) 254-3827
David Wechsler Voting Member American Chemistry Council	Jerome West Voting Member Expo Technologies Inc Phone: (631) 476-2320 Fax: (330) 487-0611