Silicate enamels (frits). Analysis methods
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Industrial valves. Methods for measuring, testing and evaluating pollutants entering the atmosphere outside the chimney system. Part 1. Classification system and assessment methods for type testing of plastic piping systems
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Vitreous and porcelain enamels Determination of chemical corrosion resistance Part 2 Determination of chemical corrosion resistance under the action of boiling acids, boiling neutral liquids, alkaline liquids and / or their vapors
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