ISO/DIS 4021

This Draft International Standard is in the enquiry phase with ISO members.

Will replace ISO 4021:1992

ISO/DIS 4021

CHF 67

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Abstract

The preferred method is to extract fluid samples from a main flowline in such a manner that the particulate contaminant in the sample is representative of the fluid flowing at the point of sampling. An alternative method is to extract a sample from the reservoir, but this method should only be used if a suitable sampler is not fitted.