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Crude Oil Sampling



Crude oil sampling for custody transfer, fiscal, allocation or quality measurement purposes should be performed in accordance with sampling standards of ISO 3171, ASTM D 4177, API 8.2 and IP 6.2.  These standards dictate a number of key design issues and steps that must be considered to ensure a system fully complies with the standards.

Click here to find out how to design a system to comply with the standards.


Jiskoot manufactures a range of fully engineered systems and products for crude oil sampling applications. All products comply with the standards when installed and operated in accordance with the standards.  All Jiskoot systems are supplied with a performance warranty that guarantees compliance with the sampling standards even if proved by water injection.


Over 60% of world crude oil is valued on the basis of Jiskoot equipment. Crude oil samplers are available for custody transfer, fiscal and allocation measurement as well as well test, test separator and sampling for calibration of multiphase flow meters. Crude oil sampling systems can be supplied for installation on offshore platforms and FPSOs as well as terminals, pipelines, jetties and locations with SPMs.

Crude oil samplers offer a range of accuracy and uncertainty;

     A bypass or probe based sampler should be used in conjunction with a suitable mixing system if required.

Click here to see if you need pipeline mixing

  • A CoJetix sampler offers the highest accuracy and lowest measurement uncertainty and represents the state of the art in sampling technology.


Both fast loop and CoJetix systems also offer the option for on-line instruments such as densitometers to integrated as part of the sampling loop. This creates a combined sampling and analysis package that provides continuous liquid density measurement, which can be fed to a metering system for mass transfers.


Jiskoot crude oil sampling systems and products are designed and manufactured drawing on years of experience of crude oil sampling. They offer you the peace of mind that the equipment that you use every day will fully comply with international best practice. JISKOOT systems are simple and reliable to use, easy to maintain and in the event of a dispute provide irrefutable evidence to support your measurement system