There are so many regulations, so it needs to be safe from the dangerous chemicals during trial. Do not eat and drink in the lab. Those who make observing everyone must wear make sure you try the pathuk times.
It requires a lot of discipline to save dangers from chemicals during an experiment. Do not eat, drink undertakings in the laboratory. The trial must be set every time you try to do as usual.
There must be rules for safe danger caused by chemicals during the experiment. Don't eat and drink in the laboratory. The experiment all must wear do lab every experiment.