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Raremetallic concentrates. Method for the determination of calcium oxide
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Solid biofuels. Method for the determination of ash melting behaviour. Part 1. Characteristic temperatures method
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Phthalic anhydride for industrial use. Methods of test. Part 2. Measurement of colour of the molten material
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Shooting-explosive works in wells. Terms and definitions
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Scaly mica. Method for the determination of sand content
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