Head of Laboratory informs testing officer to check the label of chemical bottle every time that use. If you find that stain or fade,continue to change the new label immidialy. And Head of Laboratory checks the label of chemical bottle once a week.
Head of Laboratory informs testing officer to check the label of chemical bottle every time that use. If you find that stain or fade,continue to change the new label immidialy. And Head of Laboratory checks the label of chemical bottle once a week.