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Roofing and hydraulic-insulating flexible bitumen-based materials. Methods for determination of thickness and mass per unit area

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Roofing and hydraulic-insulating flexible polymeric (thermoplastic or elastomer) materials. Methods for determination of thickness and mass per unit area

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Roofing and hydraulic-insulating flexible bitumen-based materials. Method for determination of visual defects

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Roofing and hydraulic-insulating flexible polymeric (thermoplastic or elastomer) materials. Method for determination of visual defects

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Roofing and hydraulic-insulating flexible bitumen-based and polymeric (thermoplastic or elastomer) materials. Method for determination of watertightness

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Liquid petroleum products. Determination of low lead concentrations by atomic absorption spectrometry

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