API RP 1639-ed.1

Annotation of standard text API RP 1639-ed.1 :

API RP 1639, 1st Edition, July 2003 - Owner/Operator’s Guide to Operation and Maintenance of Vapor Recovery Systems at Gasoline Dispensing Facilities

Purpose and Scope

This Recommended Practice (RP) is designed to provide guidance to owners and operators of gasoline dispensing facilities (GDF) to effectively operate and maintain Stage I and Stage II vapor recovery systems. This guide does not address the maintenance required by qualified service technicians to perform periodic testing and major system repairs. Federal and/or State regulatory agency certified or approved vapor recovery systems/equipment must be used to maintain the efficiency of the vapor recovery system. The appropriate state and/or locality should be contacted individually for sitespecific requirements.

This RP recommends the need for periodic inspections of Stage I and Stage II equipment. The equipment and the criteria for inspection are identified in highlighted text with a corresponding letter that indicates the frequency of the inspection. That is, a (D) represents a recommendation for a daily inspection; (W) recommends a weekly inspection; (M) recommends a monthly inspection; and (A) recommends an annual inspection. Appendix A is a suggested inspection checklist for the equipment and criteria identified in the text.