| Standardization field | Electrical engineering | 
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| Technical committee | BAS/TC 30- Electric cables | 
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| Term (EN) | optical thickness | 
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| Definition (EN) | The product of the physical thickness of a homogeneous isotropic optical element, and its refractive index. | 
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| Term (FR) |  | 
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| Definition (FR) |  | 
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| Term (DE) |  | 
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| Definition (DE) |  | 
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| Term (BS) |  | 
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| Definition (BS) |  | 
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| Term (HR) |  | 
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| Definition (HR) |  | 
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| Term (SR) | optička debljina | 
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| Definition (SR) | Proizvod fizičke debljine homogenog izotropnog optičkog elementa i njegovog indeksa prelamanja. | 
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| Date | 2017-08-09 | 
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| Standards | BAS IEC 60050-731:2017 | 
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