3-class attribute Sampling

[ramakanth_sagar]

In the food industry (microbiology), we are using what is called as 3-class attribute sampling plans.

The elements in such a plan is:

n=number of samples

m=marginally acceptable limit

M=critical limit

c=number of samples that can fall between m and M

the number of sample units allowed to exceed M is usually set to 0.

Values for the characteristic:

n	c	m	M
5	2	1,000	10,000

Which means, 2 of them are allowed to be between 1,000 and 10,000 cfu/g and the other 3 need to be below 1,000.

Is it possible to set up a sample procedure in SAP that will cover the above, with automatic evaluation?

[former_member42743 · Accepted solution]

Not with standard stuff.  You would have to create your own FM for this and create the sample valuation rule in config.

QM-->Quality Planning-->Basic Data-->Sample, SPC-->Define Valuation Mode

In here, select Modify Valuation Rule.  Create a new valuation rule.  I'd suggest you copy rule 70 and copy the FM used for it, "QEBR_MEAN_VALUE_TOLERANCE_INSP".

Modify the FM to your requirements.

This rule is assigned to a new Valuation Mode.

The Valuation Mode is then used in a sampling procedure.

Craig

[Former Member · Accepted solution]

This message was moderated.