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Environmental protection. Biological diversity. General requirements for the use of planktonic chlorella strains for algolization of water bodies
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Low voltage distribution systems up to 1000 V a.c. and 1500 V d.c. Electrical safety. Equipment for testing, measuring or monitoring of protective measures. Part 1. General requirements
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Resilient floor coverings. Method for determining the strength of seams
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Fiberglass reinforced thermosetting plastic pipes and parts of pipelines. Methods for determination of initial specific ring stiffness
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