Firing precautions

In these circumstances take shelter quickly in a safe place and wait for more than one minute. If no explosion occurs, the cause may be the former. This time throw sufficient powder on the shell in the mortar and throw the ignited Sindoro into the mortar once again. Surely it should work this time. If there is no success even after several attempts, leave it in the mortar untiX the display is finished and remove the shell out of the mortar by turning it upside down. 

The firer must operate in a low position as far as possible when firing. 

Bottom explosion. (See No lift.) This is an accident where a shell explodes in the mortar without ascending. This generally occurs when the lifting charge is missed and the igniter, a Sindoro, is thrown into the mortar. If it is a report shell or chrysanthemum the mortar is broken into pieces, and it is quite dangerous. However if it is a quick firing shell such an accident does not occur. 

Early explosion. In this type of accident a shell explodes too early before the shell reaches the expected altitude in the sky. It often occurs, when the composition of the fuse is too soft and causes rapid fire, or when the length of the fuse is too short. When a Poka shell is too weak 

Unexpected firing. Sometimes this occurs suddenly and unexpectedly in a prepared mortar. This is caused by fire dust particles which fall into the mortar. It is necessary to cover the mouth of the mortar with a lid after it is loaded with the shell. 

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General conditions of work, e.g. maintenance of adequate general ventilation, local exhaust ventilation, access, lighting, fire precautions, occupational health measures, housekeeping. 

Fire Protection Association (1977b) Guide to Fire Precautions with Outside Contractors, London. 

Gaseous fire extinguishing systems precautions for toxic and asphyxiating hazards (withdrawn) General fire precautions aboard ships being fitted out or under repair Eire precautions m pressurized workings Access to road tankers... 

Provides for the control of fire safety m all designated occupied premises, by ensuring that adequate general fire precautions are taken and appropriate means of escape and related precautions are present. Specifies the requirements for a fire certificate for various premises. 

A failure to safely dispose of hazardous materials and observe fire precautions could put plant at risk. 

A whole range of precautions may be based on the principles summarized earlier. However, general precautions, applicable to the majority of work situations, are listed in Table 5.13, many of which are included in legal requirements. For example, in the UK The Fire Precautions Act 1971 specifies requirements for fire resistance of surfaces and building structure, assessment of risk, means of escape, means for giving warning, firefighting equipment, and fire instruction and drills. 

BS5588 Fire precautions in the design and construction of buildings. 

Fire precautions including control of ignition sources, e.g. smoking, maintenance activities, vehicular access (see Chapter 6) and limitation of combustible materials, e.g. packaging. 

Withdrawn) 1983 AMD 3 Fire precautions in the design, construction and use of buildings. Part 3 Code of practice for office buildings (AMD 6160) dated 31 October 1989. Withdrawn, superseded by BS 5588 Part 11 1997... 

Fire precautions in the design, construction and use of buildings. Part 8 Code of practice for... 

Recommendations on the fire precautions to be taken in the design of chemical plant are given in the British Standard, BS 5908. 

Code of practice for fire precautions in the chemical and allied industries. 

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