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Coal-pitch. Dielectric method for the determination of mass fraction of substances insoluble in quinolone
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Plate double-end plug gauges with diameter from 14 to 98 mm. Design and dimensions
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Feedstuffs, compound feeds, feed raw materials. Determination of cadmium, lead, arsenic, mercury, chromium, tin by atomic absorption spectroscopy
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Recreational diving services. Requirements and guidance on environmentally sustainable practices in recreational diving
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