Aluminium ladders, steps and trestles for the building and civil engineering industries
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Specification for portable aluminium ladders, steps, trestles and lightweight stagings
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Specification for portable aluminium ladders, steps, trestles and lightweight stagings
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Terms and definitions used in connection with telegraphs and telephones
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Specification. An artificial ear for the calibration of earphones of the external type
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Method for the determination of wool fibre fineness by the use of a projection microscope
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Tests for resistivity of conductive and anti-static rubbers
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Laboratory tests for resistivity of conducting and antistatic rubbers.
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Methods for determination of resistivity of conductive and antistatic plastics and rubbers (laboratory methods)
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