No safety is necessary everywhere...the streets, your home, car driving.... elaborate on the question
A product with the UL logo has been safety tested by Underwriters Laboratories, a highly respected tester and safety certifier.
Laws are necessary because some people are thoughtless or greedy and do only what they want without thinking of the health and safety of others.
because of safety
Safety glasses are used in laboratories to protect operators eyes from splashing of dangerous liquids, powders, etc.
That would be the Underwriters Laboratories, or UL.
To protect you.
The safety symbols used in a laboratory would depend on what kind of lab it is and what activities are pursued in the lab. There is no universal set of safety symbols suitable for all laboratories.
The Underwrites Laboratories is a company that deals with product safety testing and certification. You will find the UL symbol on any product that has been tested by this company. The United States head office for Underwriters Laboratories is located in Northbrook, Illinois.
Not necessarily ... It depends on the product and the safety standards involved. UL approved simply means that the testing agencies Underwriters Laboratories (UL) or Underwriters Laboratories Canada (ULC) tested the product against safety standards. Underwriters Laboratories tests all sorts of products for all sorts of safety hazards. Presumably, if fire is a safety concern for the specific product tested, the approval would mean that the product met some sort of fire resistance standards.
No.
To protect you.
Safety is essential all the time right from Womb to Tomb. The moment you are conceived by the mother, safety becomes necessary. In the womb you do not require Oxygen, water, food; but if your safety is not there, you can not take birth in this world. From birth to death all the time safety is required - day and night - throughout the life. After death safety is required for the dead body till it is cremated. Only after cremation you go to dust and safety is no longer required for yo.