Definition(s)
Used
“Used” is defined as operations such as cleaning paint brushes with flammable solvents and mixing paint with solvents where volatile gases or vapors will be given off to the atmosphere. Also included as “usage areas” are areas where cleaning rags containing solvents or open containers of paint products are present.
API RP 500, Recommended Practice for Classification of Locations for Electrical Installations at Petroleum Facilities Classified as Class I, Division 1 and Division 2, Third Edition, December 2012, Global Standards
Used
“Used” is defined as laboratory operations or analysis where samples are mixed with flammable solvents where volatile gases or vapors will be given off to the atmosphere.
API RP 500, Recommended Practice for Classification of Locations for Electrical Installations at Petroleum Facilities Classified as Class I, Division 1 and Division 2, Third Edition, December 2012, Global Standards