listing. An example of required information can be found later in this outline. Connections that unprotected or inadequately protected must be addressed as quickly as possible, especially if the connection is a health hazard. 13.6.4 Backflow Protection Methods All graphics in this section are provided courtesy of the U.S. Environmental Protection Agency (EPA). 13.6.4.1 Nonmechanical Backflow Protection Air gap Antisiphon loop 13.6.4.2 Mechanical Backflow Protection Atmospheric vacuum breaker Hose-bib vacuum breaker Double check with atmospheric vent Pressure vacuum breaker Reduced pressure principle assembly 13.6.5 Cross-connections on Vessel 13.6.5.1 List of Connections Requiring Backflow Prevention on Vessel A log listing of all cross-connections on the vessel must be developed. At a minimum the log should contain the data elements listed in numbers 2, 3, 6, 7, and 8. The inclusion of the additional data listed in numbers 1, 4, and 5 is recommended. Deck (A, B, C, 1, 2, 3…). Location (of connection and of device, if different). Connection description (e.g., hose, chemical tank, coffee machine,
listing. An example of required information can be found later in this outline. Connections that unprotected or inadequately protected must be addressed as quickly as possible, especially if the connection is a health hazard. 13.6.4 Backflow Protection Methods All graphics in this section are provided courtesy of the U.S. Environmental Protection Agency (EPA). 13.6.4.1 Nonmechanical Backflow Protection Air gap Antisiphon loop 13.6.4.2 Mechanical Backflow Protection Atmospheric vacuum breaker Hose-bib vacuum breaker Double check with atmospheric vent Pressure vacuum breaker Reduced pressure principle assembly 13.6.5 Cross-connections on Vessel 13.6.5.1 List of Connections Requiring Backflow Prevention on Vessel A log listing of all cross-connections on the vessel must be developed. At a minimum the log should contain the data elements listed in numbers 2, 3, 6, 7, and 8. The inclusion of the additional data listed in numbers 1, 4, and 5 is recommended. Deck (A, B, C, 1, 2, 3…). Location (of connection and of device, if different). Connection description (e.g., hose, chemical tank, coffee machine,
VSP%20Operations%20Manual%20Draft%20Final%20April%202011%20with%20highlights.docx