Laboratory for Hydrocarbons design

[Eliz2697]

My issued is the following:

The hydrocarbons that we are going to handle are Gasoline, Diesel and LPG.
The tests to apply to these hydrocarbons are to determine la quality of the product.

In these areas where the samples are storage, handle, prepare, etc. Is need it a air conditioning system. this unit need to be a 100% air fresh or a simple Air contioning handling unit. I know that I need to have Fume hoods, Is this system (Fume hood exhaust)independient of the air contiotioning system,
My worried is because I need a negative pressure in these areas due to avoid flammable gases go to non-laboratory areas (What is the desing pressure in this case where I can get the value of that negative pressure in a standard).
It is necesarry to have fire-smoke dampers in this desing.
What are the conditions of temperature, pressure, humidity, etc, that I need in these kind of laboratory. There is a table in a standard or what?
Please I need some much your help.

 

[afa13]

Room temperature setting is up to you (but you have to be careful with humidity and condensation). Minimum ventilation rates can be found in ASHRAE 62.1
To get a negative pressure you have to make sure that exhaust air flow rate is higher than the supply flow rate.
I would also recommend blast dampers if applicable (unless the lab is not in the periphery of the building)
Fire dampers or fire and gas dampers or fire and smoke dampers are used to isolate a room from fire/smoke/gas. I would recommend motorized dampers rated for Zone 1 in your case.
As for humidity, it depends whether it is an electrical or a server room or for human occupancy (also available in ASHRAE)
For design conditions you can refer to ASHRAE 90.1 and 90.2
Smoke damper is required at smoke barrier and corridors with smoke and draft control with some exceptions
Fire/smoke dampers are required at shaft enclosures/horizontal assemblies with exceptions
Fire dampers are required at fire walls, fire barriers and fire partitions with exceptions
a fire damper and a smoke damper can be used in series to make up for a fire/smoke damper.

Hope this was helpful.

 

[IRstuff]

Handling of flammable fluids also requires additional infrastructure like fume hoods, flammables storage cabinets, etc., depending on what your specific local requirements are.

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[urgross]

I think the first thing to do is list all applicable criteria. Should NFPA 45 be included? If so, your answer is given for fire and smoke dampers. Will this be exhausted with other laboratory areas? You may need subducting. NFPA 30 would be applicable. For ACH, I think you would want to visit ANSI Z9.5.

Attached may be a useful reference

http://www.wbdg.org/ccb/DOD/UFC/ufc_3_460_01.pdf