<Tr> <Td> LP5 </Td> <Td> 12.25 × 18.25 </Td> <Td> 18.5 </Td> <Td> 47.7 </Td> <Td> 21.68 (0.76) </Td> <Td> 4BW240 </Td> </Tr> <Tr> <Td> Medical E </Td> <Td> 4 × 26 (excludes valve and cap) </Td> <Td> 14 (excludes valve and cap) </Td> <Td> </Td> <Td> 4.5 (0.16) </Td> <Td> 3AA2015 </Td> </Tr>

What is the pressure in an oxygen cylinder