This is referring to the sampling within the laboratory to get the testing sample. In the section on
material management, Section 7.1, general controls, it states there should be written procedures
describing the receipt, identification, quarantine, storage, handling, sampling, etc., of materials.
So, there should be procedures for both samplings, but they are described in two different
sections: one for the sampling of the materials and one for the sampling of the laboratory test
sample.