safetycultureinfo

Critical temperature : It is the highest temperature ,above which a gas cannot be liquified by the increase of pressure alone.Critical temperature of CO2 is 31.35c . Critical pressure : The pressure rquierd to liquefy a gas at its critical temperature is called the critical pressure> The critical pressure of CO2 is 73.1 bar.    Sublimation : The change of state from solid directly to gas is known as sublimation.

Fire is an oxidization process of combustible materiel in the presence of heat , the requirement of heat for different materials differs with their physical nature . combustion will occur or continue only with the attainment of the required temperature. Hence it become necessary to know the flash point,fire point,spontaneous ignition temperature of a substance.   Flash point : It is the lowest temperature at which there is sufficient vaporization of the substance produce   a vapor which will flash momentarily when a flame is applied.  Fire point:   It is the lowest temperature at which the heat from the combustion of a burning vapor is capable of producing sufficient vapor to enable combustion to continue.  Spontaneous ignition temperature: It is the lowest temperature at which the substance will burn with out the introduction of a flame or other ignition source .This implies that under certain conditions some materials undergo spontaneous ignition.

                                  The further research about fire determined that a fourth factor  that is , a chemical chain reaction is a necessary component of a fire. Fire triangle was changed to a fire tetrahedron  to reflect this fourth element. A tetrahedron can be described as a solid  having four plane faces .Essential all for element must be present for fire to occur .Removal of any one of these essential elements will result in the fire being extinguished. The four elements are: Oxygen: To sustain combustion (14 to 21% ) sufficient.  Heat: To raise the material to its ignition temperature. Fuel or Combustible material. Chain reaction: Subsequently an exothermic chemical chain reaction .                 ...

                                            Combustion is a chemical reaction or a serious of reactions in which heat & light are emitted. Three factors such as heat ,oxygen and fuel are necessary for combustion to occur .The burning of most materials produce a flame.                                              Flame may be defined as a reaction having the ability to spread through an atmosphere with the emission of heat & light. combustion is a type of reaction known as chain reaction.Most solid & liquids have to be heated above normal...

Today we faced so many problems and incidents in our day to day life . Because the most of them happened from our negligence .The negligence is arise from our mind & culture . So The treatment is need for our concept.The right path of knowledge we can develop only in child hood.So the parents & authority to ensure the mentality of the child ,his grow in good manner through the socialization process.So right education & training  and feed back every thing is evaluated at periodically .We take Road accident for example,Why & how the road accident happening?. Drivers has good knowledge about traffic rules & regulation .They believe nothing will happen. The authority marked road signs & signals ,structure.Then why increasing road accident?, That is to say negligence of rules & regulations of society. So the safety department must ensure  & improve the knowledge & working dimensions About safety b& societal vision ,Its stat from lower level ...

Usage:                                                                                   PPE: Eye protection                                                                       :Safety goggl e Task: Grinding, sand blasting,power sawing,Laser exposure,chipping,gas cutting,Electric arc welding, welders helper,insulation sprayin...

It is the important that adequate training should be provide to the employees about PPE selection and its usage pattern.The training area you have to consider while imparting training to employees in the following area : When to wear PPE. What PPE is to worn.  How to don & adjust PPE. The limitation of personal protective equipment. The care & maintenance of PPEs The useful & disposal of PPE.  PPE shall be selected and used to provide protection for all persons on the project against the following hazards: Respiratory hazards. Temperature extremes . Mechanical & Physical injuries. Environmental hazards. Radiological hazards.  Electrical hazards. Biological hazards.  chemical hazards.