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ISO 9597:1989 Cements -- Test methods -- Determination of setting time and soundness
standard by International Organization for Standardization, 09/01/1989
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Describes the reference procedure. The setting time is determined by observing the penetration of a needle into cement paste of standard consistence until it reaches a specified value. The soundness is determined by observing the volume expansion of cement paste of standard consistence as indicated by the relative movement of two needles.