Few days later I have a interview and the interviewer asked me a question that from how much height should we take the particle count from the HEPA filter? Kindly guide me with reference.
nmt 1 meter height
Laminarity will maintain at this height
generally it should be taken from the working height i.e place where you work. But some references says it should be 1m or 2 feet above the surface i.e workbench.
From classified room can we exposed the plate over the riser hight
Height is about 1.5 feet and at a angle of 45 deg.
first put in stanles steel table and the height nmt 1mm
ISO 14644 GUIDELINES refer