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API - API BULL 2520 - API BULLETIN ON USE OF VARIABLE-VAPOR-SPACE SYSTEMS TO REDUCE EVAPORATION LOSS Organization: API
Date: 1964-09-01
Description: In these systems, the usual daily outbreathing of vapor and inbreathing of air are minimized. API Bulletin 2513 defines breathing loss as "Vapors expelled from a tank because of the thermal expansion of existing vapors, and/or expansion caused by barometric pressure changes, and/or an increase in the amount of vapor from added vaporization in the absence of liquid level change, except that which results from boiling."
API - API RP 2533 - RECOMMENDED PRACTICE FOR METERING VISCOUS HYDROCARBONS - FIRST EDITION Organization: API
Date: 1969-03-01
Description: Some types of operation require purging the viscous liquids from the lines to prevent congealing dming idle periods or to prevent contamination. If the air or gas used to displace the liquid is pumped through the meter when refilling the lines, the meter may operate at excessively high rates.
API - API PUBL 1645 - STAGE II VAPOR RECOVERY SYSTEM OPERATIONS & SYSTEM INSTALLATION COSTS - FIRST EDITION Organization: API
Date: 2002-08-01
Description: This system maintains a vacuum on the entire Stage II recovery system and processes the excess vapor collected through a central vapor processor or burner. A survey of API members and several other sources of information produced average Stage II installation cost data representing company-specific typical Stage II system configurations for the three targeted vapor recovery system types.
API - 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; ERRATA: JANUARY 2014 Organization: API
Date: 2012-12-01
Description: NOTE Recommendations for determining the degree and extent of locations classified Class I, Zone 0, Zone 1, and Zone 2 are addressed in API 505, Recommended Practice for Classification of Locations for Electrical Installations at Petroleum Facilities Classified as Class I, Zone 0, Zone 1, and Zone 2.

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