| Standardization field | Metallic materials | 
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| Technical committee | BAS/TC 24- Non-destructive testing (NDT) | 
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| Term (EN) | Tube diaphragm | 
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| Definition (EN) | A device, normally fixed to a tube shield or head, to limit the extent of the emergent X-ray beam. | 
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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) | Blenda cijevi | 
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| Definition (BS) | Uređaj za ograničavanje širine nastalog snopa X zračenja, koji je obično fiksiran na zaštitni omotač ili kućište cijevi. | 
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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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