"PM10 SOURCE SAMPLING SYSTEM; 30X30X30 IN.; 110 VOLTS; 60 HZ; DETERMINES THE CONCENTRATION OF DUST IN PARTICULATE MATTER 10 MICRONS OR LESS (PM10) IN EXHAUST GASES SUCH AS SMOKE STACK EMISSIONS; BUILT IAW EPA PROPOSED RULES DTD 6 JUNE 89,FEDERAL REGISTER,VOL 54,NO. 107; SYSTEM INCLUDES PM10 CONTROL UNIT W/EXTERNAL PUMP,25 FT. UMBILICAL CORD,MODULAR SAMPLE BOX (INCLUDING HOT BOX AND ICE BATH ASSEMBLY),5 FT. PROBE W/10 MICRON CYCLONE AND IN STACK BACKUP FILTER HOLDER,TWO NOZZLES SIZES,GLASSWARE SET W/4 IN. FILTER HOLDER,FILTER CLAMP,SET OF 12 BALL JOINT CLAMPS,BOX OF 100 4 IN. FILTER MEDIA AND MONORAIL ASSEMBLY"