Standardisation sampling protocols

As far as experimental protocol is concerned, this will correspond to the mode of operation chosen. The protocol is essentially the analysis recipe and is generally a process controlled by predefined standards. This procedure involves standardisation at each stage of analysis from sample preparation to experimental measurement. 

Several different protocols are found for each of these stains, and it is best if laboratories standardise on one method. A number of companies market equipment which allows the simultaneous staining of multiple samples. These can obviously save considerable time. A wide variety of other stains are found in the literature, but those given above are the ones of greatest diagnostic value. 

Standardisation may focus on the testing equipment, such as chambers for salt spray testing, and on the testing protocol. In order to limit the dispersion of the results, the testing conditions define as precisely as possible the sample preparation, the chemicals, the test duration, the expression of results, etc. 

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