<Tr> <Td> 20 </Td> <Td> 68 </Td> <Td> 101.33 </Td> <Td> 760.0 </Td> <Td> 7005101325014435400 ♠ 14.696 </Td> <Td> 7005101325014435400 ♠ 29.92 </Td> <Td> 0 </Td> <Td> GOST 2939 - 63 </Td> </Tr> <Tr> <Td> 16 </Td> <Td> 60 </Td> <Td> 101.33 </Td> <Td> 760.0 </Td> <Td> 14.696 </Td> <Td> 7005101325353180402 ♠ 29.92 </Td> <Td> </Td> <Td> SPE, U.S. OSHA, SCAQMD </Td> </Tr> <Tr> <Td> 16 </Td> <Td> 60 </Td> <Td> 101.6 </Td> <Td> 762 </Td> <Td> 14.73 </Td> <Td> 7005101559774928369 ♠ 30.0 </Td> <Td> </Td> <Td> EGIA (Imperial System Definition) </Td> </Tr> <Tr> <Td> 16 </Td> <Td> 60 </Td> <Td> 101 </Td> <Td> 760 </Td> <Td> 14.7 </Td> <Td> 7005101352932209574 ♠ 30 </Td> <Td> </Td> <Td> U.S. DOT (SCF) </Td> </Tr>

What is the state of mercury at 20 degrees celsius