PRODUCTS & SERVICES
COMPLIANCE TESTING
FOR NDT PRODUCTS
Adherence to industry standards for equipment
used in non-destructive testing is essential to
ensure the accuracy and quality of testing
AEROSPACETESTINGINTERNATIONAL.COM // JUNE 81
The reliability of an ultraviolet LED lamp
must be tested to meet industry
standards before it can be used for nondestructive
testing (NDT). Prior to sale to
consumers, each lamp is qualified through
careful quality control and assurance. These
standards are published documents which
clearly define what product reliability testing
must be done, as well as the specifications of
the mandated light output. This ensures that
NDT products are reliable, safe, and satisfy
the requirements of the industry.
Spectroline is the originator of LED lights
for fluorescent inspection and rigorously tests
and qualifies every NDT lamp before they
leave the manufacturing plant. The company
performs a variety of tests and records the
results to ensure products meet the
standards of ASTM, Rolls-Royce (RRES), ISO,
Nadcap, and others. The standards are strict
and essential to the success of the NDT
industry. Subpar products can be detrimental
to the industry.
The two main standards that Spectroline
works with are ASTM E3022 and RRES 90061,
because these are the mostly widely followed
guidelines that pertain to liquid penetrant
FREE READER INQUIRY SERVICE
spectronics
For more about this advertiser, visit www.magupdate.co.uk/pati
1 // An intensity test
where the lamp is shined
at a radiometer from
38cm away
Lamp performance requirement tests
Maximum Intensity
ASTM 3022 Requirement -
RRES 90061 Requirement 5,000 uW/cm2
Peak Wavelength
ASTM 3022 Requirement 365 (+/-5) nm
RRES 90061 Requirement 365 (+/-5) nm
Maximum Current Ripple
ASTM 3022 Requirement 5%
RRES 90061 Requirement 6%
Maximum Temperature
ASTM 3022 Standard 120°F
RRES 90061 Standard -
inspection and magnetic particle inspection. ASTM E3022 and
RRES 90061 are performance requirements for LED UV-A
lamps and are intended primarily for UV lamp manufacturers.
They outline the test procedures and data collection required
for LED lamp manufacturers to certify their UV-A lamps for
NDT use.
Examples of the tests to determine if an NDT lamp is
compliant are shown in table 3. These include: a current ripple
test, where the lamp is plugged into an oscilloscope to
measure the current ripple and a housing temperature test
that uses a thermometer to measure the temperature of the
lamp’s housing, as well as intensity test and a wavelength
test. These tests are just a snippet of all the quality testing
that goes into each product. Once all of the testing is
complete, a certificate including the test results is printed and
packaged with the lamp. ASTM mandates that each lamp
comes with a certificate of conformance, and RRES requires a
validation report. Look for the appropriate documents when
you purchase your next NDT lamp.
If an LED lamp does not come with accompanying
certificates, it means the lamp is not compliant for
nondestructive testing. Many lamp manufacturers make false
claims that their lamps are ASTM and RRES compliant, when
in reality they are not. It is extremely important to use a lamp
that is compliant to your specific application, because these
standards were enacted to assure safety and inspection
integrity. Improper NDT can result in huge financial losses, or
worse, the loss of life. At Spectroline, all of our products are
built to the highest standard and compliance is guaranteed
and the company prides itself on manufacturing compliant
products of the highest quality.\\
2 // Graph of a
wavelength test where the
lamp is shined at a
spectroradiometer to
determine the wavelength
3 // All UV lamps at
Spectronics undergo
these tests to meet the
main relevant standards
2
3
1
/AEROSPACETESTINGINTERNATIONAL.COM
/pati