issue facing - creating expression

Hi,

We have define four "TEST"

      Test Name            Data Type                expression defined                    Remarks
------------------------------------------------------------------------------------------------------------------------------------
1)  LENGTH                Numeric Range                                                            OK
2)  WEIGHT                Numeric Range                                                            OK
3)  COUNT                  Expression              0.54 * "LENGHT" / "WEIGHT          OK
4)  CLSP                      Expression              COUNT * "STRENGTH_NEW"       Error - "Test Count" in the expression is not valid.

Please guide how we calculate the fourth test "CLSP" according to above exression.
Please treat it a "CRITICAL" , because we have to provide this test at OPM asap. Thanks

Regards,
Anwar

A file is attached for reference.