ASTM F1084-90(2002)
(Guide)Standard Guide for Sampling Oil/Water Mixtures for Oil Spill Recovery Equipment
Standard Guide for Sampling Oil/Water Mixtures for Oil Spill Recovery Equipment
SIGNIFICANCE AND USE
This guide provides techniques for obtaining representative samples of oil and water mixtures. This information is necessary in the calculation of oil recovery efficiency and oil recovery rates for oil collection devices.
Sampling Stationary Mixtures—When recovered oil/water mixtures are contained within a holding tank and the relative oil content of the recovered fluid is needed, the sampling technique is somewhat dependent on the container. Two techniques are outlined in this guide. If the container has a flat bottom with straight sides perpendicular to the base (or nearly so), either stationary technique can be implemented, with the stratified sampling method preferred. If the container is irregular in either the horizontal or vertical cross section, the mixing method is preferred.
Sampling Flowing Mixtures—To sample flowing mixtures containing both oil and water, turbulence is induced, to create a homogenous mixture while sampling. The oil content in the sample taken from the flowing stream can then be used to quantify the performance rating criterion (see Procedure Section of Test Method D 1796).
SCOPE
1.1 This guide is intended for sampling flowing or stationary oil/water mixtures. It is intended for use with oil spill recovery devices either in testing or in documentation of field performance.
1.2 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.
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Designation: F 1084 – 90 (Reapproved 2002)
Standard Guide for
Sampling Oil/Water Mixtures for Oil Spill Recovery
Equipment
This standard is issued under the fixed designation F 1084; 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 (e) indicates an editorial change since the last revision or reapproval.
1. Scope is irregular in either the horizontal or vertical cross section, the
mixing method is preferred.
1.1 This guide is intended for sampling flowing or station-
3.3 Sampling Flowing Mixtures—To sample flowing mix-
ary oil/water mixtures. It is intended for use with oil spill
tures containing both oil and water, turbulence is induced, to
recovery devices either in testing or in documentation of field
create a homogenous mixture while sampling. The oil content
performance.
in the sample taken from the flowing stream can then be used
1.2 This standard does not purport to address all of the
to quantify the performance rating criterion (see Procedure
safety concerns, if any, associated with its use. It is the
Section of Test Method D 1796).
responsibility of the user of this standard to establish appro-
priate safety and health practices and determine the applica-
4. Number of Samples
bility of regulatory limitations prior to use.
4.1 Take a minimum of four samples under each set of
2. Referenced Documents conditions to average results and store the samples separately.
In less ideal sampling conditions, take additional samples.
2.1 ASTM Standards:
D 1744 Test Method for Water in Liquid Petroleum Prod-
5. Containers
ucts by Karl Fischer Reagent
5.1 A dry, water-washed glass sample container.
D 1796 TestMethodforWaterandSedimentinFuelOilsby
the Centrifuge Method (Laboratory Procedure)
6. Labeling
F 625 Practice for Classifying Water Bodies for Spill Con-
6.1 Mark the sample container with the source, type of oil,
trol Systems
date and time of sampling, the name of the person taking the
3. Significance and Use sample, and a sample number. Require water and oil-resistant
labeling. If several receiving containers are to be sampled, they
3.1 This guide provides techniques for obtaining represen-
must be identified and the samples marked for later coordina-
tative samples of oil and water mixtures. This information is
tion.
necessary in the calculation of oil recovery efficiency and oil
recovery rates for oil collection devices.
7. Preservation and Storage
3.2 Sampling Stationary Mixtures—When recovered oil/
7.1 The samples do not require special treatment to preserve
water mixtures are contained within a holding tank and the
their integrity other than ensuring that they remain sealed until
relative oil content of the recovered fluid is needed, the
analyzed. Note date and time of analysis for each sample.
sampling technique is somewhat dependent on the container.
Two techniques are outlined in this guide. If the container has
8. Procedure
a flat bottom with straight sides perpendicular to the base (or
8.1 Baseline Data—The test fluids may be crude, refined, or
nearly so), either stationary technique can be implemented,
synthetic oils. Record type, specific gravity, viscosity, and
with the stratified sampling method preferred. If the container
temperature of each oil together with the environmental
conditions (see Practice F 625), air temperature, and slick
This guide is under the jurisdiction of ASTM Committee F20 on Hazardous
thickness beyond the influence of the recovery equipment for
Substances and Oil Spill Response and is the direct responsibility of Subcommittee
each test point.
F20.12 on Removal.
8.2 Sampling from a Container—This procedure is intended
Current edition approved Oct. 10, 2002. Published February 2003. Originally
approved in 1987. Last previous edition approved in 2001 as F 1084 – 90 (2001). for taking a representative sample of collected fluids held in a
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
container. When sampling containers, it is advisable to remove
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
as much of the aqueous phase as possible prior to sampling. If
Standards volume information, refer to the standard’s Document Summary page on
this is possible, measure and record the volume of water
the ASTM website.
Withdrawn.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
F 1084 – 90 (2002)
removed, which will contain dissolved hydrocarbons, for later
calculation of the relative oil/water composition. The precision
of the measurement will improve with removal of the aqueous
phase.
8.2.1 Mixing Method:
8.2.1.1 Mix the container of stratified oil and water using
any method which will achieve homogeneity during sampling
(high-speed propeller, liquid jet, or homogenizing pump).
Operate the mixer for a minimum of 5 min. Longer mixing
times are preferable to ensure homogeneity.
NOTE 1—Although this mixing method has been geared toward electric
mixers, alternate mixing methods could be used (air or liquid mixing jets,
homogenizing pumps), so long as a homogeneous mixture of the entire
volume is created. Immediately after mixing, obtain a representative
sample of the homogeneous mixture by lowering a 250 to 500-mL
small-mouthedbottle(fromwhichthecaphasbeenremoved)ataconstant
slow rate from the surface of the mixture to the bottom of the tank.
Immediately remove the bottle by slowly raising it through the mixture. If
necessary, repeat the process to ensure that at least 50 mL of sample will
be available for laboratory analysis. Do not fill the bottle to the top.
8.2.1.2 Limitations—Thesizeofthesampledfluidcontainer
is limited by the mixing capability available for thoroughly
homogenizingtheoilandwater.Mixtureswheretherelativeoil
content is less than 20 % probably will not form a stable
emulsion for sampling; making this method inappropriate for
these mixtures.
NOTE 2—Certain oils (N-dimethylformamide, military jet engine fuel,
DMF, JP5) will not form stable emulsions. Speed is important in these
NOTE 1—Align holes on slots in inner and outer sleeve
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