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ASTM F1863-98
Standard Test Method for Measuring the Night Vision Goggle-Weighted Transmisivity of Transparent Parts
Automaticky preložený názov:
Štandardná skúšobná metóda pre meranie Night Vision Goggle vážených Transmisivity z priehľadného Parts
NORMA vydaná dňa 1.1.1999
Informácie o norme:
Označenie normy: ASTM F1863-98
Poznámka: NEPLATNÁ
Dátum vydania normy: 1.1.1999
Kód tovaru: NS-51870
Počet strán: 5
Približná hmotnosť: 15 g (0.03 libier)
Krajina: Americká technická norma
Kategória: Technické normy ASTM
Anotácia textu normy ASTM F1863-98 :
Keywords:
canopy, night vision goggles, transmissivity, transparency, windscreen, ICS Number Code 37.020 (Optical equipment)
Doplňujúce informácie
| 1. Scope | ||||||||
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1.1 This test method covers apparatuses and procedures that are suitable for measuring the NVG-weighted transmissivity of transparent parts including those that are large, thick, curved, or already installed. This test method is sensitive to transparencies that vary in transmissivity as a function of wavelength. 1.2 Since the transmissivity (or transmission coefficient) is a ratio of two radiance values, it has no units. The units of radiance recorded in the intermediate steps of this test method are not critical; any recognized units of radiance (for example, watts/m2-str) may be used, as long as it is consistent. 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 and health practices and determine the applicability of regulatory limitations prior to use. |
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| 2. Referenced Documents | ||||||||
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