| Standardization field | Metallic materials | 
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| Technical committee | BAS/TC 24- Non-destructive testing (NDT) | 
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| Term (EN) | Useful density range | 
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| Definition (EN) | The range of optical density on a radiograph that is used for image interpretation. The upper limit is determined by the film illuminator and the lower limit by the loss in flaw sensitivity. | 
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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) | Koristan opseg zacrnjenja | 
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| Definition (BS) | Opseg zacrnjenja radiograma koji se koristi za interpretaciju slike. Gornja granica je određena iluminatorom  a donja granica gubitkom osjetljivosti otkrivanja greške. | 
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| Term (HR) |  | 
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| Definition (HR) |  | 
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| Term (SR) |  | 
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| Definition (SR) |  | 
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| Date | 2016-02-26 | 
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| Standards | BAS EN 1330-3:2001 | 
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