ASTM F2771-10(2016) PDF

Scope: 5.1 To provide a standardized test method that can be used for a valid comparison of luminance time curves, color changes and cosmetic changes between lamps of various designs, fabrication techniques, and sources.

1.1 This test method establishes the procedures for determining the visible performance change, which is defined by luminance, color and cosmetic appearance of an electroluminescent lamp during operation over an extended time.

1.2 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

ASTM F2771-10(2016) Referenced Document

ASTM F1595 Standard Practice for Viewing Conditions for Visual Inspection of Membrane Switches
ASTM F2359 Standard Test Method for Determining Color of a Membrane Switch Backlit with Diffuse Light Source
ASTM F2360 Standard Test Method for Determining Luminance of a Membrane Switch Backlit with Diffuse Light Source

2010 ASTM F2771-10(2016) Standard Test Method for Determining the Luminance Curve of an Electroluminescent Lamp at Ambient Conditions
2010 ASTM F2771-10 Standard Test Method for Determining the Luminance Curve of an Electroluminescent Lamp at Ambient Conditions
2009 ASTM F2771-09 Standard Test Method for Determining the Luminance Curve of an Electroluminescent Lamp at Ambient Conditions