PRODUCT STEWARDSHIP AWARENESS TRAINING
CNI Control Measures
As with all hazardous operations key control measures should be in place to minimise potential incidents:
BULK STORAGE
Vertical tanks are preferred
– Frangible roof to allow easy relief
Horizontal tanks
– Could form missiles in an incident
– Safety principles need to be strictly applied
Bunds
– 110% + allowance for deluge water
Low Flash Point Materials
– Not in same bund
Pumping
Best practice is to use equipment that does not have the potential to heat the product
Pneumatically operated diaphragm pumps provide safe means of unloading to storage tanks and injecting into gas-oil headers
If a Centrifugal pump is used it must be fitted with a temperature trip set to stop the pump at a temperature of 55°C
Positive displacement diaphragm pumps may be used providing they have an external relief system. This system MUST NOT vent back to the storage tank
Gear pumps and other positive displacement systems ARE NOT recommended (can heat 2EHN rapidly)
Pumping Operations
All types of pumps must have the following:
Temperature trip to stop pump @ 50-60ºC (75 deg C subject to an expert risk assessment may be possible)
Pressure switch to stop pump if outlet is blocked/closed and/or
Low flow switch to stop pump if outlet is blocked/closed
Heating of Equipment
Tanks fitted with internal heating coils, limpet coils, trace heating etc should NOT be used
Completely REMOVE all heating systems through physical means e.g. (removal of pipework, cables etc so it cannot be accidentally re-activated)
Piping/lines/hoses/pumps should NOT be trace heated
Lines should not be close to steam lines
English (United States) 
Portuguese (Brazil)