ASTM D5287-97

Standard Practice for Automatic Sampling of Gaseous Fuels

SCOPE
1.1 This practice covers the collection of natural gases and their synthetic equivalents using an automatic sampler.
1.2 This practice applies only to single-phase gas mixtures that vary in composition. A representative sample cannot be obtained from a two-phase stream.
1.3 This practice includes the selection, installation, and maintenance of automatic sampling systems.
1.4 This practice does not include the actual analysis of the acquired sample. Other applicable ASTM standards, such as Test Method D1945, should be referenced to acquire that information.
1.5 The selection of the sampling system is dependent on several interrelated factors. These factors include source dynamics, operating conditions, cleanliness of the source gases, potential presence of moisture and hydrocarbon liquids, and trace hazardous components. For clean, dry gas sources, steady source dynamics, and normal operating conditions, the system can be very simple. As the source dynamics become more complex and the potential for liquids increases, or trace hazardous components become present, the complexity of the system selected and its controlling logic must be increased. similarly, installation, operation, and maintenance procedures must take these dynamics into account.
1.6 The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are for information only.
1.7 This standard does not purport to address all of the safety problems, 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.

General Information

• Status: Historical
• Publication Date: 31-Dec-1992
• Technical Committee: D03 - Gaseous Fuels
• Drafting Committee: D03.01 - Collection and Measurement of Gaseous Samples

Relations

• Replaced By: ASTM D5287-97(2002) - Standard Practice for Automatic Sampling of Gaseous Fuels
• Effective Date: 10-Jun-1997

Standards Content (Sample)

STD.ASTM D5287-ENGL 1997 - 0759530 0614352 725 -
Designation: D 5287 - 97
AMERICAN SoCiETY FOR &TlNG AND MATERIALS
100 Ban Hartm Dr. West Conshohocken. PA 19428
RePdnted from the Annual Book of ASTM Standards. Cqydght ASTM
Standard Practice for
Automatic Sampling of Gaseous Fuels’
This standard is issued under the fixed designation D 5287; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (t) indicates an editorial change since the last revision or reapproval.
API 14.3 Part 2 (AGA Report Number 3)4
1. scope
GPA Standard 2166 Methods of Obtaining Natural Gas
1.1 This practice covers the collection of natural gases and
Samples for Analysis by Gas Chromatography5
their synthetic equivalents using an automatic sampler.
NACE Standard MR-0 1-75 Standard Material Require-
1.2 This practice applies only to single-phase gas mixtures
ments. Sulfide Stress Cracking Resistant-Metallic Mate-
that vary in composition. A representative sample cannot be
rials for Oilfield Equipment6
obtained from a two-phase stream.
1.3 This practice includes the selection, installation, and 2.3 Federal Documents:
maintenance of automatic sampling systems. Code of Federal Regulations, Title 49, 173, 34(e), p. 389’
1.4 This practice does not include the actual analysis of
the acquired sample. Other applicable ASTM standards,
3. Terminology
such as Test Method D 1945, should be referenced to acquire
that information.
3.1 Definitions of Terms Specific to This Standard:
1.5 The selection of the sampling system is dependent on
3.1.1 automatic sampler-(see Fig. l(a) and (b)) a me-
several interrelated factors. These factors include source
chanical system, composed of a sample probe, sample loop,
dynamics, operating conditions, cleanliness of the source
sample extractor, sample vessel, and the necessary logic
gases, potential presence of moisture and hydrocarbon liq-
circuits to control the system throughout a period of time,
uids, and trace hazardous components. For clean, dry gas
the purpose of which is to compile representative samples in
sources, steady source dynamics, and normal operating
such a way that the final collection is representative of the
conditions, the system can be very simple. As the source
composition of the gas stream.
dynamics become more complex and the potential for
3.1.2 representative sample-a volume of gas that has
liquids increases, or trace hazardous components become
been obtained in such a way that the composition of this
present, the complexity of the system selected and its
volume is the same as the composition of the gas stream
controlling logic must be increased. Similarly, installation,
from which it was taken.
operation, and maintenance procedures must take these
3.1.3 retrograde condensation-the formation of liquid
dynamics into account.
phase by pressure drop at constant temperature on a
1.6 The values stated in inch-pound units are to be
dew-point gas stream.8
regarded as the standard. The values given in parentheses are
3.1.4 sample extractor-a device to remove the sample
for information only.
from the sample loop and put it into the sample vessel.
1.7 This standard does not purport to address all of the
3.1.5 sample loop-the valve, tubing, or manifold(s), or
safety concerns, if any, associated with its use. It is the
combination thereof, used for conducting the gas stream
responsibility of the user of this standard to establish appro-
from the probe to the sampling device and back to the source
priate safety and health practices and determine the applica-
pipe (or atmosphere).
bility of regulatory limitations prior to use.
3.1.6 sample probe-that portion of the sample loop
attached to and extending into the pipe containing the gas to
2. Referenced Documents
be sampled.
3.1.7 sample vessel-the container in which the sample is
2.1 ASTM Standards:
collected, stored, and transported to the analytical equip-
D 1945 Test Method for Analysis of Natural Gas by Gas
ment.
Chromatography2
3.1.8 source dynamics-changes in gas supplies, operating
2.2 Other Standards:
pressures, temperatures, flow rate, and other factors that may
AGA Report Number 7 Measurement of Gas by Turbine
affect composition or state, or both.
Meters3
4 Available from the American National Standards Institute, 11 W. 42nd St.,
t This practice is under the jurisdiction of ASTM Committee D-3 on Gaseous
13th Floor, New York, NY 10036.
Fuels and is the direct responsibility of Subcommittee DO3.01 and Collection and
s Available from Gas Processors Assn, 6526 E. 60th St., Tulsa, OK 74145.
Measurement of Gaseous Samples. Originally published as D 5287 - 92. Last
previous edition D 5287 - 92. 6Available from National Association of Corrosion Engineers, P.O. Box
Current edition appro
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