| Standardization field | Metallic materials | 
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| Technical committee | BAS/TC 24- Non-destructive testing (NDT) | 
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| Term (EN) | Contrast medium | 
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| Definition (EN) | Any suitable substance, solid or liquid, applied to a material being radiographed, to enhance its radiation contrast in total or in part. | 
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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) | Kontrastni medij | 
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| Definition (BS) | Bilo koja pogodna materija, čvrsta ili tečna, koja se nanosi na materijal koji se radiografiše, da bi djelimično ili potpuno poboljšala njegov kontrast zračenja. | 
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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 | 2016-02-25 | 
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| Standards | BAS EN 1330-3:2001 | 
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