| The data of measurement is important for all investi gation s and evaluations in environmental quality. However, for achieving the integrity, preci sion and accuracy of data conducted by experimental processes, it was necessary that the concept of standard operation processes (SOP) was applied to the water quality laboratory, This research had successfully established 26 SOP's methods regulated in Taiwan related regulations. Moreover, those of the substantial instruments in the laboratory were also set up. For convenience of the management and safety for chemicals in the laboratory, the user enrolling was adopted in the laboratory. Depended on the information of chemicals characteristic, seven species were classified by the MSDS of EPA and nineteen species were Classified by the law of Occupational safety and health . Finally, comparing the data of before SOP with that of after SOP by F and t test, the errors in experimental processes could be reduced and the precision was also promoted. |