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.
ОБЈАВЉЕН
ISO 4021:1992
ПРОЈЕКАТ
ISO/PRF 4021
50.00
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6. 10. 2026.