Anaesthetics: Document updates required

[danwrisar]

To do:

• [x] Set out an RC methodology for calculating emissions associated with use of bottled anaesthetic gas.
• [x] Present a worked example for using an RC methodology for calculating emissions associated with use of bottled anaesthetic gas.
• [x] Set out an OC methodology for calculating emissions associated with use of bottled anaesthetic gas.
• [x] Present a worked example for using an OC methodology for calculating emissions associated with use of bottled anaesthetic gas.

[danwrisar]

Also for consideration - An agreed value for global warming potential of the anaesthetic gasses, with references. Currently there are a variety used for calculation (ranging from approx. 310-349 for Nox, for example) a good concise project is to aggregate these and provide either a preferred source (IPCC?) or present an average figure.

[danwrisar]

Added RC and SC equations for use where flow is known/approximated rather than per cylinder calculations. This is based on the Real-Time Anaesthetic Gas Calculator from the Association of Anaesthesiologists

[danwrisar]

Removed emissions based on flow, can be reintroduced as appropriate