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ASTM D 4177 Document Information:
Title
Standard Practice for Automatic Sampling of Petroleum and Petroleum Products
ASTM International
Publication Date:
Nov 10, 1995
Scope:
This practice covers information for the design, installation,
testing, and operation of automated equipment for the extraction of
representative samples of petroleum and petroleum products from a
flowing stream and storing them in a sample receiver. If sampling
is for the precise determination of volatility, use Practice D 5842
(API MPMS Chapter 8.4) in conjunction with this practice.
For sample mixing, refer to Practice D 5854 (API MPMS
Chapter 8.3). Petroleum products covered in this practice are
considered to be a single phase and exhibit Newtonian
characteristics at the point of sampling.
Applicable Fluids—This practice is applicable to
petroleum and petroleum products with vapor pressures at sampling
and storage temperatures less than or equal to 101 kPa (14.7 psi).
Refer to D 5842 (API MPMS Chapter 8.4) when sampling for
Reid vapor pressure (RVP) determination.
Non-applicable Fluids—Petroleum products whose vapor
pressure at sampling and sample storage conditions are above 101
kPa (14.7 psi) and liquified gases (that is, LNG, LPG etc.) are not
covered by this practice.
While the procedures covered by this practice will produce a
representative sample of the flowing liquid into the sample
receiver, specialized sample handling may be necessary to maintain
sample integrity of more volatile materials at high temperatures or
extended residence time in the receiver. Such handling requirements
are not within the scope of this practice. Procedures for sampling
these fluids are described in Practice D 1265, Test Method D 1145,
and GPA 2166.
Annex A2 contains theoretical calculations for selecting the
sampler probe location. Annex A3 lists acceptance methodologies for
sampling systems and components. Annex A4 gives performance
criteria for permanent installations, while Annex A5 has the
criteria for portable sampling units. Annex A6 provides sampler
acceptance test data. Appendix X1 is a design data sheet for
automatic sampling systems. Appendix X2 compares the percent
sediment and water to unloading time period.
The values stated in SI units are to be regarded as the
standard. The values given in parentheses are for information
only.
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