Liam,

Thank you for your advice. You further clarified it for me.



>Hi Elgin,
>
>Wrap the entire condition in a single NOT, eg
>
>

IF !(("PCB" $ UPPER(fluid)) OR ("PYRANOL" $ UPPER(fluid)) OR ("WECOSOL" $ UPPER(fluid)))
>  Do Case stuff
>Else
>  Do other stuff
>Endif

>
>Regards,
>
>Liam
>