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ASTM D3700

Standard Practice for Obtaining LPG Samples Using a Floating Piston Cylinder

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Organization: ASTM
Publication Date: 1 October 2016
Status: active
Page Count: 11
ICS Code (Hydraulic fluids): 75.120
scope:

This practice covers the equipment and procedures for obtaining a representative sample of liquefied petroleum gas (LPG), such as specified in ASTM Specification D1835, GPA 2140, and comparable international standards. It may also be used for other natural gas liquid (NGL) products that are normally single phase (for example, NGL mix, field butane, and so forth), defined in other industry specifications or contractual agreements, and for volatile (higher vapor pressure) crude oils.

NOTE 1-Some floating piston cylinders have such tight piston seals that the vapor pressure of some high vapor pressure crude oils may not be sufficient to allow sampling without a handle to move the piston. An alternative sampling practice for UN Class 3 liquids (under 300 kPa at 52 °C) is Practice D8009, which utilizes a Manual Piston Cylinder (MPC) sampler.

This practice is not intended for non-specification products that contain significant quantities of undissolved gases (N2, CO2), free water or other separated phases, such as raw or unprocessed gas/liquids mixtures and related materials. The same equipment can be used for these purposes, but additional precautions are generally needed to obtain representative samples of multi-phase products (see Appendix X1).

This practice includes recommendations for the location of a sample point in a line or vessel. It is the responsibility of the user to ensure that the sampling point is located so as to obtain a representative sample.

The values stated in SI units are to be regarded as standard.

Exception-The values given in parentheses are for information only.

This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices, and determine the applicability of regulatory limitations prior to use.

*A Summary of Changes section appears at the end of this standard

 

Document History

ASTM D3700
October 1, 2016
Standard Practice for Obtaining LPG Samples Using a Floating Piston Cylinder
This practice covers the equipment and procedures for obtaining a representative sample of liquefied petroleum gas (LPG), such as specified in ASTM Specification D1835, GPA 2140, and comparable...
May 1, 2014
Standard Practice for Obtaining LPG Samples Using a Floating Piston Cylinder
This practice covers the equipment and procedures for obtaining a representative sample of liquefied petroleum gas (LPG), such as specified in ASTM Specification D1835, GPA 2140, and comparable...
November 1, 2012
Standard Practice for Obtaining LPG Samples Using a Floating Piston Cylinder
This practice covers the equipment and procedures for obtaining a representative sample of specification liquefied petroleum gas (LPG), such as specified in ASTM Specification D1835, GPA 2140, and...
February 15, 2007
Standard Practice for Obtaining LPG Samples Using a Floating Piston Cylinder
This practice covers the equipment and procedures for obtaining a representative sample of specification liquefied petroleum gas (LPG), such as specified in Specification D 1835, GPA 2140, and...
December 10, 2001
Standard Practice for Obtaining LPG Samples Using a Floating Piston Cylinder
This practice covers the equipment and procedures for obtaining a representative sample of specification liquefied petroleum gas (LPG), such as specified in Specification D 1835, GPA 2140, and...
January 1, 1994
Standard Practice for Containing Hydrocarbon Fluid Samples Using a Floating Piston Cylinder
This practice describes equipment and a procedure for obtaining a representative sample of a homogeneous hydrocarbon fluid and the subsequent preparation of that sample for laboratory analysis. It is...
August 25, 1978
STANDARD PRACTICE FOR CONTAINING HYDROCARBON FLUID SAMPLES USING A FLOATING PISTON CYLINDER (R 1988) (E1-1988)
A description is not available for this item.

References

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