ASTM_F_1093_-_99_2012.pdf

Designation:F109399(Reapproved 2012)Standard Test Methods forTensile Strength Characteristics of Oil Spill ResponseBoom1This standard is issued under the fixed designation F1093;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the year of last revision.A number in parentheses indicates the year of last reapproval.Asuperscript epsilon()indicates an editorial change since the last revision or reapproval.1.Scope1.1 These test methods cover static laboratory tests of thestrength of oil spill response boom under tensile loading.1.2 The values stated in inch-pound units are to be regardedas standard.The values given in parentheses are mathematicalconversions to SI units that are provided for information onlyand are not considered standard.1.3 This standard does not purport to address all of thesafety concerns,if any,associated with its use.It is theresponsibility of the user of this standard to establish appro-priate safety and health practices and determine the applica-bility of regulatory limitations prior to use.For a specifichazard statement,see Section 7.2.Referenced Documents2.1 ASTM Standards:2F818 Terminology Relating to Spill Response BarriersF962 Specification for Oil Spill Response Boom Connec-tion:Z-Connector3.Terminology3.1 Definitions:3.1.1 The following definitions,quoted from TerminologyF818,are used in these test methods.3.1.2 anchor pointa structural point on the end connectoror along the length of a boom section designed for theattachment of anchor or mooring lines.3.1.3 ballastweight applied to the skirt to improve boomperformance.3.1.4 boom sectionthe length of boom between two endconnectors.3.1.5 boom segmentrepetitive identical portion of theboom section.3.1.6 curtain-type booma boom consisting of a flexibleskirt supported by flotation.See Appendix X1.3.1.7 end connectora device permanently attached to theboom used for joining boom sections to one another or to otheraccessory devices.3.1.8 fence-typeboomaboomconsistingofself-supporting or stiffened membrane supported by floatation.SeeAppendix X1.3.1.9 floatthat separable component of a boom that pro-vides buoyancy.3.1.10 freeboardthe vertical height of the boom above thewater line.3.1.11 hingelocation between boom segments at whichthe boom can be folded back 180 upon itself.3.1.12 skirtthe continuous portion of the boom below thefloats.3.1.13 tension memberany component which carries hori-zontal tension loads imposed on the boom.4.Summary of Test Method4.1 A specimen of spill containment boom is tested bysubjecting the specimen to cyclic tests to 100%of themanufacturers rated tensile strength,and by applying tensileloading which progressively deforms the specimen to the pointof failure.Similarly,a typical anchor point and towing deviceare tested in an additional tensile test.For each phase of thetest,values of tensile load and deformation are observed andrecorded,and modes of failure are described.5.Significance and Use5.1 Boom sections are frequently combined into assem-blages hundreds of meters in length prior to towing through thewater to a spill site.The friction of moving long boomassemblages through the water can impose high tensile stresseson boom segments near the tow vessel.5.2 Tensile forces are also set up in a boom when it is beingtowed in a sweeping mode.The magnitude of this tensile forcecan be related to the immersed depth of the boom,the length of1These test methods are under the jurisdiction of ASTM Committee F20 onHazardous Substances and Oil Spill Response and are the direct responsibility ofSubcommittee F20.11 on Control.Current edition approved May 1,2012.Published June 2012.Originallyapproved in 1991.Last previous edition approved in 2007 as F1093 99(2007).DOI:10.1520/F1093-99R12.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at serviceastm.org.For Annual Book of ASTMStandards volume information,refer to the standards Document Summary page onthe ASTM website.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 boom involved,the width of the bight formed by the twotowing vessels,and the speed of movement.NOTE1When the towing speed exceeds about 1 knot(0.5 m/s),substantial oil will be lost under the boom.5.3 Knowledge of maximum and allowable working tensilestresses will help in the selection of boom for a givenapplication and will permit specification of safe towing andanchoring conditions for any given boom.6.Apparatus6.1 Load Application DeviceA suitable load applicationdevice,such as a hydraulic jack,shall be provided.The devicemust be capable of applying loads somewhat in excess of thepredicted failure load on the boom.6.2 TensiometerAtensiometer shall be selected which willencompass the range of values from no load up to themaximum boom tensile load which might reasonably beexpected prior to failure of the boom.6.3 End SupportsThe test bed pro