Advanced Environmental Testing Instrumentation Flashcards
What are data loggers?
Stand-alone instruments that automatically measure and store environmental data
What are electronic hygrometers?
Device designed to determine relative humidity, air temperature, and dew-point temperature
What are oven data loggers?
Devices that measure and record oven temperature profiles
What is a stand alone wind data monitor?
Convenient way to gather wind data. Depending on the manufacturer, these instruments may record wind speed, gusts, and direction, as well as time, date, temperature, and other important wind parameters
What is a wind speed monitor?
An instrument that gathers wind data to help users decide if conditions are appropriate for coating application projects
What do basic electronic hygrometers determine?
- Relative humidity
- Air temperature
- Dew-point temperature
What can more advanced electronic instruments determine
- Relative humidity
- Air temperature
- Dew-point temperature
- Surface temperature
- Delta T
- Dry bulb temperature
What is Delta T?
Difference of surface temperature and dew point
Handheld electronic hygrometers can be used __________?
A. Immediately when changing from one environment to another
B. In an environment requiring intrinsically safe tools
C. Anywhere since there are temperature/environmental restrictions
D. After stabilization in accordance with manufacturer’s requirements
D. After stabilization in accordance with manufacturer’s requirements
Standalone data loggers have the following characteristics:
A. Automatically measure and store environmental conditions
B. May have alarms when conditions are not met
C. Are exclusively used in labs
D. Could be some handheld hygrometers with special attachments
A. Automatically measure and store environmental conditions
B. May have alarms when conditions are not met
D. Could be some handheld hygrometers with special attachments
What is a digital microscope?
This device uses optics and a charge-coupled device (CCD) camera to output a digital image a monitor
What is an Eddy-Current Gauge?
Instruments based on the eddy-current principle are used to measure the DFT of non-conductive films applied to conductive substrates such as aluminum, copper, brass, and stainless steel.
What is are Magnifiers?
These devices are used to view surface profile, potential contamination, blisters, rust, mill scale, pinholes, and other surface preparation or coating defects.
What is a Moisture Meter?
This instrument indicates the degree of moisture in concrete, fiberglass or wood to a depth of 12.5 cm (5 in.).
What is an Optical Microscope?
This instrument uses visible light and a system of lenses to magnify images of small samples.
What is a Stereo Microscope?
This instrument uses two separate optical paths with two eyepieces and two objectives to provide slightly different viewing angles for your left and right eye.
What is an Ultrasonic Thickness Gauge?
This instrument measures the thickness of coatings on nonmetal substrates (plastic, wood, etc.) without damaging the coating.
What is ASTM D6132?
ASTM D6132, Standard Test Method for Nondestructive Measurement of Dry Film Thickness of Applied Organic Coatings Using an Ultrasonic Gauge
The pH of a solution that is between 0.0 and 6.5 is considered to be ________?
A Alkaline
B. Basic
C. Neutral
D. Acidic
D. Acidic
You are the inspector on a project that requires the use of a ph meter. What steps are required to assure the owner that the results give are accurate? (Select all that apply.)
A. Calibration of instruments
B. Place the probe in a solid material
C. Verification of calibration with buffer solution
D. Using unit with a lightly damaged probe
A. Calibration of instruments
C. Verification of calibration with buffer solution
You are the inspector on a project where bronze is the coated substrate. To determine the DFT nondestructively you would use which of the following gauges?
A. Eddy current
B. Electromagnetic
C. Banana
D. Tooke
A. Eddy current
Ultrasonic DFT gauges are designed to measure the film non-destructively by sending _______?
A. A magnetic pulse through the film
B. An eddy current through the film
C. A sound pulse through the coating
D. A sound pulse through the concrete
C. A sound pulse through the coating
Moisture meters would commonly be used to determine the moisture content in
________? (Select all that apply.)
A. Concrete
В. Plaster
C. Wood
D. Steel
A. Concrete
В. Plaster
C. Wood
