Safety and Protocol
An SOP is to be written by teams of technical writers, safety personnel and _________
What is the technicians who will perform the testing.
Light scattering instruments like aerosol photometers are limited to measuring particles in what range?
What is 0.1 to 10 microns.
The filter coverage for a unidirectional cleanroom must be at least this amount.
What is 80%.
This is the statistical analysis of a data set to determine uniformity of the data.
What is standard deviation.
The equation N = (C x Q) / Z
C=Required upstream challenge
Q= Airflow volume being tested
Z = Constant = 135 X 100 = 13500
What is the Required Number of Laskin Nozzles.
Primary audience for an SOP
What is the person who will perform the particular test.
The preferred method for measuring for measuring airflow volume from individual filters.
What is a Flow measuring hood.
The occupancy mode of a complete cleanroom that has production equipment installed and operating, but no personnel in the facility
What is At-Rest.
The equation RSD = SD/M describes this.
What is relative standard deviation.
These two types of generators can be used for the Aerosol Photometer method of filter testing.
What is Laskin Nozzle and Thermal Generator.
The SOP should include this many steps.
What is as many as are necessary.
Recovery tests are not recommended for these types of cleanrooms.
What is Unidirectional.
Airflow parallelism is considered this type of test.
What is secondary.
A 4' x 2' filter with an 0.75" frame and 1.5" center bar has this area.
What is 7.0 square feet.
The probe is at his distance from the filter face when scanning.
What is 1 inch.
This is the largest source of contamination in a cleanroom.
The possible number of illumination sources for a particle counter.
What is 3.
To take room velocities the space is typically divided into these square foot areas.
What is 16.
The particles generated in this type of cleanroom are almost immediately removed from the space.
What is Unidirectional.
The ideal scan rate is in this range.
What is 2 to 4 inches per second.
What should be used to wipe down your equipment for entrance into the cleanroom?
What is De-ionized water and Isopropyl alcohol.
This measures oscillatory displacement.
What is a Vibration meter.
This describes the outside air ventilation rate entering a building or zone.
What is nominal air change rate.
The widely used standard for pressure levels between cleanrooms.
What is 0.05" or 12 Pa
A significant leak.
What is 0.01%