F2359-04R19
Standard Test Method for Determining Color of a Membrane Switch Backlit with Diffuse Light Source
| Označení normy: | F2359-04R19 |
| Vydáno: | 01.12.2019 |
| Status: | Active |
| Počet stran: | 2 |
| Sekce: | 10.04 |
| Označení: | backlit; CIE; color coordinates; colorimeter; diffuse light; electroluminescent material; light emitting diodes; luminance; luminous color; membrane switch; photometer; radiometer; video photometer; |
1.1 This test method covers procedures for determining the luminous color of a backlit membrane switch. As written, it applies to a fully assembled switch. For specific purposes, it can be applied to partially assembled switches, with the understanding that the results pertain only to the partial assembly and will be modified as the further assembly proceeds.
1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
1.3 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.
1.4 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.