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Protective devices against diagnostic medical X-radiation - Determination of attenuation properties of materials. Original standard BS EN 61331-1-2014 in PDF full version. Additional info + preview on request

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Protective devices against diagnostic medical X-radiation - Translucent protective plates. Original standard BS EN 61331-2-2014 in PDF full version. Additional info + preview on request

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Protective devices against diagnostic medical X-radiation - Protective clothing, eyewear and protective patient shields. Original standard BS EN 61331-3-2014 in PDF full version. Additional info + preview on request

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Soft ferrite material classification. Original standard BS EN 61332-2017 in PDF full version. Additional info + preview on request

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Distribution automation using distriubution line carrier systems. Mains signalling requirements - MV phase to earth and screen to earth coupling devices. Original standard BS EN 61334-3-22-2001 in PDF full version. Additional info + preview on request

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Distribution automation using distribution line carrier systems. Data communication protocols - Data link layer. Connection oriented protocol. Original standard BS EN 61334-4-33-1998 in PDF full version. Additional info + preview on request

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