Carbon tetrachloride or tetrachloromethane, which is widely known as Freon 10 and halon 104, is a colorless liquid with ether like smell. Carbon tetrachloride, with chemical formula CCl4, is a toxic chemical and harmful to human’s health.
Carbon tetrachloride was widely used as solvent in laboratory, precursor for refrigerant and fire extinguisher agent. But due to its environmental problem and health effect, its used has been greatly reduced. Read the rest of this entry »
You have placed safety slogans around your plant site and workplaces. Your main concern is to promote safety and enhance workers awareness against safety. You want to make the workers always think safety prior to do any activity in the plant site.
Many of you may have read my previous article about 40 Free Safety Slogans for the Workplaces. However, do you measure and evaluate the effectiveness of safety slogans that you have used in your workplace in regular basis? Are they effective enough to make workers always aware about safety? Read the rest of this entry »
A few days ago, another company has been cited for safety and health violations after being inspected by OSHA that started in August 2009. The company is C&W Industries in Union Springs, Alabama, which provides material handling systems.
According to ohsonline.com, there were some safety and health violations that were found during OSHA inspection. These violations caused the company to be cited for $59,250 of penalties. Read the rest of this entry »
Hydrostatic test is used for confirming mechanical integrity of installed pressure vessels and pipe lines. It has to be completed before putting the pressure vessels and pipe lines in use.
According to ASME Section VIII Division I, hydrostatic pressure is conducted at the pressure of 1.5 times design pressure. If a vessel is design for holding 1.0 kg/cm2.g pressure, the hydrostatic pressure test has to be done at 1.5 kg/cm2.g. Read the rest of this entry »
ball valve
There are many drain valves around the plant site. These valves can be installed at equipments or pipe lines. Generally, they are operated only at certain conditions such as for draining condensate and depressurized equipment or piping line. In this case, we talk about ball valve with valve handle type as shown by the image on left.
However, these drain valves may be operated accidentally, hit by plant operators or misoperation, which potentially creating an emergency situation. As an example, if the drained material is highly flammable liquid. Read the rest of this entry »
Carbon monoxide detectors play an important role in preventing carbon monoxide poisoning. It detects carbon monoxide gas at certain level in workplace and soon warns workers to do necessary measures.
Carbon monoxide detectors are either battery operated or electric. Battery operated CO detector needs to be replaced the battery after being achieved its service life.
There are three types of CO detector sensors available in the market. They are electronic sensor detectors, calorimetric sensor detectors and Metal Oxide Semiconductor (MOS) Sensor. Electronic sensor detector is the most sensitive detector, but the cost is higher than other types. Study their advantages and disadvantages before making any purchase. Read the rest of this entry »
Because carbon monoxide is odorless and colorless, many workers in the plant site do not realize its existence in the workplace. Thus, preventive measures hold fundamental safety function in order to reduce carbon monoxide generation, avoid concentration buildup, alert workers about its existence and prevent carbon monoxide poisoning.
You may have established some preventive measures against CO. But the list below may give you another idea for completing hazard controls against CO. Read the rest of this entry »
