conditional format has me stumped

I have been working on a conditioning format that looks right but when its entered it returns what im not asking it to do. Here are 3 pictures of the 2 different pages im using. What im trying to accomplish is if Clinker worksheet column C equals Hi Alk and column R is between the values of ISO page H13 and K13 i want column R to fill in green. Here is what i have but it shades green only some values between and even values outside of range. =AND($C7="Hi Alk",$R7>=ISO!$H$13,$R7<=ISO!$K$13)