SAE AS 25050B:2017 pdf free download – (R) Colors,Aeronautical Lights and Lighting Equipment, General Requirements For

SAE AS 25050B:2017 pdf free download – (R) Colors,Aeronautical Lights and Lighting Equipment, General Requirements For.
3.6.1.4 Aviation-Blue Ware
The light transmitted by the ware furnished shall be not greener nor less saturated than the light transmitted by the pale limit, and when light transmitted by the ware is transmitted in turn through a replica of identification red transmission standard filter designated as NBS 3055A, the light transmitted by the combination shall be not more than 0,015 times the light transmitted by the ware without the red fitter.
3.6.1.5 Aviation and Instrument Panel Lighting White Colorless Ware
The light transmitted by the ware fumished shall not be noticeably different in chromaticity from the illuminant.
3.6.1.6 Identification Lunar•White Ware
The light transmitted by the ware furnished shall not be yellower than the light transmitted by the pale limit, nor bluer than the light transmitted by the blue limit.
3.6.2 Chromaticity of Diffusing Ware
When diffusing ware, o equipment using such ware, is specified to be In accordance with a standard, the chromaticity of every portion that is designed to be viable in service shall conform to the following requirements when used with the intended light source.as specified in Table 5.
3.6.2.1 Aviation-White Ware
The illuminated surface of the ware shall not appear appreciably different in chromaticily from the surface of the while diffusing standard.
3.6.2.2 Identification-Red Ware
The illuminated surface of the ware shall not be yellower nor less saturated than the surface of the white diffusing standard viewed through the applicable pale limit.
3.6.2.3 Identification-Yellow (Amber) Ware
The illuminated surface of the ware shaM not be redder than the surface of the white diffusing standard viewed through the applicable red limit, nor greener nor less saturated than the surface of the same standard viewed through the applicable green limit.
3.6.2.4 Identification-Green Ware
The Illuminated surface of the ware shall not be less saturated than the surface of the white diffusing standard viewed through the applicable pale limit and shall be neither yellower nor bluer than the surface of the same standard viewed through the applicable yellow and blue limits, respectively.
3.6.2.5 Identification Lunar-White Ware
The illuminated surface of the ware shall not appear yellower than the surface of the while diffusing standard viewed through the applicable pale limit nor bluer than the surface of the same standard viewed through the applicable blue limit.
3.6.2.6 Assembled Equment
When lighting units using incandescent lamps as illuminants are purchased under this specification and it is not practicable to inspect the light-transmitting ware by itself, the requirements tot color shall apply to the complete units.
3.7 Transmission and Brightness
3.7.1 Transmission of Nondiffusing Ware
The transmission ratio of nondiffu&ng ware purchased under this specification shal be not less than the value specified in Table VI for nonditfusing ware of the grade and color stipulated.
3.7,2 Brightness of Diffusing Ware
The brightness of diffusing ware purchased under this specification shall be within the limits specified in Table 6 for diffusing ware of the color and grade stipulated.
3.7.3 Assembled Equipment
When lighting units using incandescent lamps as Iluminants are purchased under this specification and it is not practicable to inspect the light-transmitting ware by itself, units utilizing diffusing ware shall conform to the requirements for brightness, but units using nondiffusing ware shall not be tested for transmission. In such cases, the procurement order shall contain intensity requirements covering the performance of the assembled unit.
3.8 Procurement without a Color Standard
lighting units and lamps which derive their color from the highly chromatic nature of the iluminant. and other equipment for which it is impracticable to use a color standard, shall be purchased by fundamental definitions, In which case the chromaticity Coordinates of the light transmitted or emitted shall conform to the applicable definitions (see 3.1 and 3.2). In the case of equipment using incandescent lamps, this requirement shall be met for all illuminants within the range to be used in service.
4. QUALITY ASSURANCE PROVISIONS
4.1 Responsibility for Inspection
Unless otherwise specified in the contract or purchase order, the supplier is responsible for the performance of all inspection requirements as specified herein. Except as otherwise specified, the supplier may utilize his own facilities or any commercial laboratory acceptable to the Government. The Government reserves the right to perform any of the inspections set forth in the specification where such inspections are deemed necessary to assure supplies and services conform to prescribed requirements.