Test4

Test4 is like Test3, in that it is normalized by the Balance Test Critical Value. However, Test4 is defined by the following equation.

Where:

balerr = imbalance in measured data.

balvar = balance variance.

balcrit = Balance Test Critical Value.

Note: As with Test3, the value for Test4 can be positive or negative.

When you check the results for the tests, examine carefully any measurements and associated balances that consistently produce values greater than the absolute value of 1.0. For example, if a Test1 measurement value is greater than or equal to the absolute value of 1.0, then the corresponding Test3 balance value for an adjacent process should also be greater than or equal to the absolute value of 1.0. This confirms that there is a problem in the Process, Node or Inventory Element with which the two values are associated. If one of these values is greater than or equal to the absolute value of 1.0 and the other value is less than the absolute value of 1.0, then there may not be a problem with either the measurements or the balances for the process.

The names of the default Element Attribute to which the test factors are written are:

[element].ReconciledMassTest1

[element].ReconciledMassTest2

[element].ReconciledMassTest3

[element].ReconciledMassTest4

Where [element] is the name of the reconciled measurement or balance element. Again, note that the templates for quantity measurements contain Test1 and Test2 and the templates for balance points contain Test3 and Test4. Inventory, which are both a balance point and have a quantity measurement, have all four test attributes.