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Acknowledgements
refurbishments and conversions of residential and non-residential buildings
operation and maintenance of windows
OHSAS 18001:1999 is applicable to any organization that wishes to:
This European Standard specifies methods for reducing laboratory samples of aggregates to test portions
Testing fresh concrete - Vebe test Ingestion-build-53008 AcknowledgementsThis European Standard specifies a method for determining the consistency of fresh concrete by means of the Vebe time. It is not applicable to concrete of which the maximum size of aggregate exceeds 63mm. If the Vebe time is less than 5 s or more than 30 s, the concrete has a consistency for which the Vebe test is unsuitable.