Until you specify what kind of laboratory, what kinds of materials and procedures, and the level of training of those using the lab, it is impossible to list precautionary measures that would be appropriate.
Precautions that sometimes apply include:
sabay sabay natin kainin angtalong na torta
These should be covered in your textbook, possibly at the beginning or at the end as an appendix. If the book doesn't clear it up, ask your teacher, because precautionary symbols are there for a reason-- to protect you from harm.
taeh
Safety precautionary measures in Tagalog is "mga hakbang sa kaligtasan" or "mga patakaran sa kaligtasan".
Precautionary measures are actions taken to prevent something else. A parent blocking off a staircase from a small child is a precautionary measure taken so that the child does not fall down the stairs.
what precautionary measures are taken to minimize the damage caused by the tsunami
yrr
5 measures in handling plants
Safety precautionary measures reduce the risk related to human health. These measures not only prevent us from danger but improves efficiency of work
so that we can learn more about the precautionary measure or so that we can learn more things about it.
ewan
there are 7