ASTM F1093-99(2012)
(Test Method)Standard Test Methods for Tensile Strength Characteristics of Oil Spill Response Boom
Standard Test Methods for Tensile Strength Characteristics of Oil Spill Response Boom
SIGNIFICANCE AND USE
Boom sections are frequently combined into assemblages hundreds of meters in length prior to towing through the water to a spill site. The friction of moving long boom assemblages through the water can impose high tensile stresses on boom segments near the tow vessel.
Tensile forces are also set up in a boom when it is being towed in a sweeping mode. The magnitude of this tensile force can be related to the immersed depth of the boom, the length of boom involved, the width of the bight formed by the two towing vessels, and the speed of movement.
Note 1—When the towing speed exceeds about 1 knot (0.5 m/s), substantial oil will be lost under the boom.
Knowledge of maximum and allowable working tensile stresses will help in the selection of boom for a given application and will permit specification of safe towing and anchoring conditions for any given boom.
SCOPE
1.1 These test methods cover static laboratory tests of the strength of oil spill response boom under tensile loading.
1.2 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.
1.3 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. For a specific hazard statement, see Section 7.
General Information
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Standards Content (Sample)
NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
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Designation: F1093 − 99 (Reapproved 2012)
Standard Test Methods for
Tensile Strength Characteristics of Oil Spill Response
Boom
This standard is issued under the fixed designation F1093; 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 (´) indicates an editorial change since the last revision or reapproval.
1. Scope 3.1.5 boom segment—repetitive identical portion of the
boom section.
1.1 These test methods cover static laboratory tests of the
3.1.6 curtain-type boom—a boom consisting of a flexible
strength of oil spill response boom under tensile loading.
skirt supported by flotation. See Appendix X1.
1.2 The values stated in inch-pound units are to be regarded
3.1.7 end connector—a device permanently attached to the
as standard. The values given in parentheses are mathematical
boom used for joining boom sections to one another or to other
conversions to SI units that are provided for information only
accessory devices.
and are not considered standard.
3.1.8 fence-type boom—a boom consisting of self-
1.3 This standard does not purport to address all of the
supporting or stiffened membrane supported by floatation. See
safety concerns, if any, associated with its use. It is the
Appendix X1.
responsibility of the user of this standard to establish appro-
priate safety and health practices and determine the applica-
3.1.9 float—that separable component of a boom that pro-
bility of regulatory limitations prior to use. For a specific
vides buoyancy.
hazard statement, see Section 7.
3.1.10 freeboard—the vertical height of the boom above the
water line.
2. Referenced Documents
3.1.11 hinge—location between boom segments at which
2.1 ASTM Standards:
the boom can be folded back 180° upon itself.
F818 Terminology Relating to Spill Response Barriers
3.1.12 skirt—the continuous portion of the boom below the
F962 Specification for Oil Spill Response Boom Connec-
floats.
tion: Z-Connector
3.1.13 tension member—any component which carries hori-
3. Terminology zontal tension loads imposed on the boom.
3.1 Definitions:
4. Summary of Test Method
3.1.1 The following definitions, quoted from Terminology
4.1 A specimen of spill containment boom is tested by
F818, are used in these test methods.
subjecting the specimen to cyclic tests to 100 % of the
3.1.2 anchor point—a structural point on the end connector
manufacturer’s rated tensile strength, and by applying tensile
or along the length of a boom section designed for the
loading which progressively deforms the specimen to the point
attachment of anchor or mooring lines.
of failure. Similarly, a typical anchor point and towing device
3.1.3 ballast—weight applied to the skirt to improve boom
are tested in an additional tensile test. For each phase of the
performance.
test, values of tensile load and deformation are observed and
3.1.4 boom section—the length of boom between two end
recorded, and modes of failure are described.
connectors.
5. Significance and Use
5.1 Boom sections are frequently combined into assem-
These test methods are under the jurisdiction of ASTM Committee F20 on
blages hundreds of meters in length prior to towing through the
Hazardous Substances and Oil Spill Response and are the direct responsibility of
Subcommittee F20.11 on Control.
water to a spill site. The friction of moving long boom
Current edition approved May 1, 2012. Published June 2012. Originally
assemblages through the water can impose high tensile stresses
approved in 1991. Last previous edition approved in 2007 as F1093 – 99 (2007).
on boom segments near the tow vessel.
DOI: 10.1520/F1093-99R12.
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
5.2 Tensile forces are also set up in a boom when it is being
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
towed in a sweeping mode. The magnitude of this tensile force
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. can be related to the immersed depth of the boom, the length of
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
F1093 − 99 (2012)
boom involved, the width of the bight formed by the two standard length may be used for this test provided that the
towing vessels, and the speed of movement. tension member length is proportional, the hinge area between
them, the connector assemblies at each end, and the anchor
NOTE 1—When the towing speed exceeds about 1 knot (0.5 m/s),
point are fabricated identically to the manufacturer’s full size
substantial oil will be lost under the boom.
standard boom section provided the total specimen is at least
5.3 Knowledge of maximum and allowable working tensile
10 ft (3 m) in length.
stresses will help in the selection of boom for a given
application and will permit specification of safe towing and
6.8 Alternative Apparatus—Because production lengths of
anchoring conditions for any given boom.
boom are normally longer than 15 ft and because undue stress
due to gravity forces may be placed on such boom if tested
6. Apparatus
with the apparatus described above, the following described
6.1 Load Application Device—A suitable load application
apparatus may be substituted. Test apparatus which lays the
device, such as a hydraulic jack, shall be provided. The device
boom in a horizontal and continuously supported manner or
must be capable of applying loads somewhat in excess of the
one which provides support similar to that provided by the
predicted failure load on the boom.
water (that is, a split table supporting the boom in an upright
manner) will be satisfactory.
6.2 Tensiometer—Atensiometershallbeselectedwhichwill
encompass the range of values from no load up to the
7. Hazards
maximum boom tensile load which might reasonably be
expected prior to failure of the boom.
7.1 Failure of a loaded containment boom can release a
6.3 End Supports—The test bed provided shall have end
substantial amount of energy. During testing, personnel and
supports of sufficient strength and rigidity to resist significant
equipment shall be positioned and protected so that sudden
deformationunderthemaximumloadsexpectedduringtesting.
failure of the test specimen is unlikely to cause injury or
damage.
6.4 Towing Devices and Connectors—At least one of the
manufacturer’s standard tow bridles or towing devices shall be
8. Procedure
used at the leading end of the boom specimen (where the load
is applied).Asimilar tow bridle or towing device shall be used
8.1 Determination of Boom Tensile Strength:
at the trailing end if the test apparatus is long enough.
8.1.1 Test Bed Preparation—Prepareatestbedwithtwoend
However, if it is not, the connector at the trailing end of the
supports separated with sufficient clearance for the boom
specimen may be attached directly to a connector fixed to that
specimen,twotowingdevices,andtestingequipmentasshown
end support of the test apparatus. Suitable shackles, cables,
in Fig. 1. Mount the specimen with one towing device attached
chains, and so forth, shall be provided to connect the towing
directly to one of the end supports. Alternately, the connector
adapters to the test equipment, as diagrammed in Figs. 1-3.
at the trailing end of the test specimen may be attached to a
6.5 Gage Points—Gage points shall be affixed to each end
Specification F962 connector fix
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