The question suggests you are either having problems,mormthere may be uninformed users or students involved.  Concentrated sulfuric acid might be locked up with limited access.  Education of students, staff of its hazards and location of fume hood for using or mixing from concentrated acid.  How to label samples that have been stabilized with or contain acid, etc.  install eye wash station and shower for rapid dilution of contaminants and hazardous chemicals.  Safety meetings at regular intervals, even for a few minutes to remind users of hazards.  Clean up requirements when done using acids, lock back up concentrated acids, or store in acceptable location, out of reach of children or properly labeled hazard for non-lab staff, etc.   

Hi!

There are some occupational health methods to consider:

OSHA method ID 165SG: https://www.osha.gov/dts/sltc/methods/inorganic/id165sg/id165sg.html

OSHA method ID-113: https://www.osha.gov/dts/sltc/methods/inorganic/id113/id113.html

NIOSH: http://www.cdc.gov/niosh/nioshtic-2/20044946.html

In general base impregnated filters and impingers with alkaline solutions are in use to capture acid (H2SO4) and mist fractions.

regards Bjarne

OSHA ID 113 and NIOSH 7903 based on the same principle.The NIOSH method was published in the new 5th edtition of NMAM in 2014. This method was completely revised and fullfils all requirements for workplace air measurements.

OSHA ID 165SG will not fulfil the requirement for sampling aerosols and by this reason this method is not suitable for sulphuric acids measurements.

Thank you Dietmar for your specifications.

Bjarne

Thank you all of you.