&SPECIES_PARAMS
 PSPECIES="G-HCH           ",
 PWETA_GAS=  3.5E-05,
 PWETB_GAS= 0.62    ,
 PRELDIFF=  4.3    ,
 PHENRY=  422.0    ,
 PF0= 0.10    ,
 PWEIGHTMOLAR=  290.83    ,
 POHCCONST=  6.21E-11,
 POHDCONST=  1203.00000    ,
 POHNCONST=  2.00000000    ,
 /