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Hardmetals. Metallographic determination of microstructure. Characterisation of porosity, carbon defects and eta-phase content. Original standard UNE-EN ISO 4499-4-2016 in PDF full version. Additional info + preview on request

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Steel and iron. Determination of nickel content. Gravimetric or titrimetric method. Original standard UNE-EN ISO 4938-2016 in PDF full version. Additional info + preview on request

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Steel and cast iron. Determination of copper. 2,2'-Biquinoline spectrophotometric method. Original standard UNE-EN ISO 4946-2016 in PDF full version. Additional info + preview on request

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Connections for fluid power and general use. Ports and stud ends with ISO 261 metric threads and O-ring sealing - Dimensions, design, test methods and requirements for external hex and internal hex port plugs. Original standard UNE-EN ISO 6149-4-2017 in PDF full version. Additional info + preview on request

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Animal and vegetable fats and oils. Determination of anisidine value. Original standard UNE-EN ISO 6885-2016 in PDF full version. Additional info + preview on request

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Animal and vegetable fats and oils. Determination of oxidative stability (accelerated oxidation test). Original standard UNE-EN ISO 6886-2016 in PDF full version. Additional info + preview on request

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