ASTM E3022-18,Standard Practice for Measurement of Emission Characteristics and Requirements for LED UV-A Lamps Used in Fluorescent Penetrant and Magnetic Particle Testing.
ASTM E3022-18 are intended to be performed only by the manufacturer to certify performance of specific lamp models and also includes limited acceptance tests for individual lamps delivered to the user.
Test Requirements
Lamp models used for nondestructive testing (NDT)shall be tested in accordance with the requirements of Table I.
7.2 LEDs of UV-A Lamps shall be continuously powered with the led drive current exhibiting minimum ripple(see7.6.5).The projected beam shall also not exhibit any perceivable variability in projected beam intensity (i.e. strobing,flicker, etc. )(see 7.4.6)
The manufacturer shall provide a certification of conformance that the lamp model meets the requirements of thisstandard. The certification shall be provided with each lamp supplied to the customer and shall include the results of the following lamp model tests.
ASTM E3022-18 pdf was shared by Leo ,a net friend from New York of America.

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