Advantages of using the ANSI/ASHRAE tracer gas test method vs. the ANSI/AIHA. Z face velocity test method for the. expressed in feet per minute (fpm) or meter per second (m/s) (ANSI/ASHRAE necessarily involving the use of a bench or a table (ANSI/ASHRAE , ). SEFA (Scientific Equipment Furniture. Association), formerly SAMA (Scientific. Apparatus Manufacturer Association). (recommended practices). ▫ ASHRAE .

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Design, Construction, Maintenance, Health and Safety. Skip to main content Skip to main navigation menu Skip to site footer. Ahrae health ;48 1: Air flow was visualized through injecting low and high volume of smokes at 18 tests. Maupins K, Hitchings DT. Laboratory fume hood performance. Evaluation of laoratory hoods in Tehran Water and Waste water Co. Meanwhile, the exposure of a mannequin stationed at the front of hood was measured.

Taylor, Scott and Tufts Climate Initiative. Massachusetts Institute of Technology. A new method for quantitative, in-use testing of laboratory fume hoods. Face velocity was measured times using a thermal anemometer TA-2 model. The concentration of tracer gases was measured using direct reading instruments.

Linear regression of the results was used to consider the substitution of ethylene with SF6.


Taylor S, Initiative TC. The occupational exposure of a hypothetic hood operator was determined 27 times through direct reading. SF 6 is extremely hostile to environment and expensive.

Chemical Health and Safety. Tracer gas evaluations of push-pull ventilation system performance. Significance of face velocity fluctuation in relation to laboratory fume hood performance.

Islamic Azad university; The application of ASHRAE hood performance test with smaller volume of tracer sulfur hexafluoride gas is not recommended. Vol 6 No 1 The environmentally hostile characteristics of SF6 as well as its cost are the major concerns. Hitchings DT, Maupins K.

Interpretations For Standard 110-1995

Chemical Fume Hood Guide: The average and standard deviation of face velocity at hood inlet were 0. Am Ind Hyg Assoc ;59 2: Laboratory fume hood performance.

Method of testng performance of laboratory fume hoods. UC Lab Safety Workgroup. Dale T, Maupins K. Choosing less environmentally damaging gases for fume hood tracer gas testing. The occupational exposure of the proposed hood operator aahrae SF6 and ethylene were 4. Industrial Ventilation a manual of practice for designe 27th ed.

American National Standard for Laboratory Ventilation. In this test, sulfur hexafluoride SF6 is applied as a tracer gas to quantitatively evaluate the performance of laboratory hoods. Azhrae present work, the possibility of conducting this method of hood performance test with less volume of SF 6 was investigated. J Occup Environ Hyg ; 11 1: A considerable amount of sulfur hexafluoride is applied to evaluate the performance of each laboratory hood according to ASHRAE— method.


Lawrence Berkeley National Laboratory. The performance of a laboratory hood was evaluated using ASHRAE standard method at three different ventilation capacity as well as three different volumetric flow rates of injected SF 6 while a mannequin was located at the front of hood.

Laboratory hood, Tracer gas, Ethylene, SF6.


Application of non-dispersive infrared NDIR spectroscopy to the measurement of atmospheric trace gases. Shahid Beheshti University of Medical Science; Alternative gases to meet.

Exploring the use of less environmentally damaging gases for use in tracer gas testing. Appl Occup Environ Hyg ; 15 2: Evaluation of laoratory hoods in Tehran Water and Waste water Co. Tracer performance testing of installed fume hoods: Tracer performance testing of installed fume hoods: Ann OccupHyg ; 51 2: Containment testing of laboratory hoods in the as-used condition.