MOM Sierras 290 MARPLE
PERSONAL
CASCADE
IMPACTOR T h e first precision cascade impactor w o r n by a w o r k e r giving complete accurate particle size distributions. Developed by Sierra under NIOSH contract. The patented revolutionary instrument from Sierra—World Leader in Air Sampling Instruments—gives precision aerodynamic particle size distributions and attaches to lapel or pocket. Available in 8, 6 or 4 impactor stages. Weighs only 7 oz. max. T h e 2 LPM flow rate is c o m p a t i b l e with typical personal sampling pumps. Applications include sampling for w o o d dust, coal dust, silica dust, respirable dust sampling, inhalation t o x i c o l o g y , aerobacteriology, indoor air p o l l u t i o n , aerosol - research, and low cost multi-point sampling. N I O S H selected Sierra with Professor Virgil A. Marple and Dr. Kenneth Rubow of the University of Minnesota's Particle T e c h n o l o g y Laboratory to accomplish this breakthrough. T h e first and exclusive precision cascade impactor w o r n by · personnel—from Sierra Instruments. For more information call Sierra's Applications Engineers 408/659-3177
SIERRA INC
INSTRUMENTS,
P.O. Box 909, Carmel Valley, CA 93924 Telex 337795 CVBS CARV · 408/659-3177
CIRCLE 19 ON READER SERVICE CARD 280A
Environ. Sci. Technol., Vol. 16, No. 5, 1982
