One security officer made a trot chotphap of one of the company's pipeline by using a valuation metric that is normal or abnormal values?, not harmful to employees.
Safety will be the flavor of the condition of the sewer of a company by using a measure that is normal or abnormal anything to avert the danger to employees.
Safety officer person the condition of course will drain of a company by the use of measuring the percentage that is normal or abnormal? In order to prevent the harm to the staff.