ASTM_F_1460_-_07_2013.pdf

Designation:F146007(Reapproved 2013)Standard Practice forCalibrating Oil Spill Dispersant Application EquipmentBoom and Nozzle Systems1This standard is issued under the fixed designation F1460;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 This practice covers uniform procedures for determiningand reporting the dosage rate of oil spill dispersant applicationequipment.1.2 This practice is applicable to spray systems employingbooms and nozzles and is not fully applicable to other systemssuch as fire monitors,sonic distributors,or fan-spray guns.1.3 This practice is applicable to systems for use on ships orboats and helicopters or airplanes.1.4 This practice is one of four related to dispersant appli-cation systems using booms and nozzles.One is on design,oneon calibration,one on deposition,and one on the use of thesystems.Familiarity with all four standards is recommended.1.5 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.2.Referenced Documents2.1 ASTM Standards:2F1413 Guide for Oil Spill Dispersant Application Equip-ment:Boom and Nozzle Systems3.Significance and Use3.1 This practice will enable calibration of oil spill disper-sant application equipment and ensure a desired dosage anduniformity across the swath width.3.2 The data provided by the methods described herein willpermit the preparation of a chart relating delivery rate withapplication vehicle speed,flow meter reading or pump settingso that in actual application,the desired dosage will beachieved.3.3 This practice will ensure that a dispersant applicationsystem is functional,capable of delivering a specified dosage,and that major components are operational.This will alsoensure that the unit is functioning according to design specifi-cations as detailed in Guide F1413.4.Apparatus and Materials4.1 Pailsof capacity 7 to 20 L(2 to 5 U.S.gal)to catch thespray from the nozzles.4.2 Graduated Cylinder of capacity 7 to 20 L or a scalehaving capacity of at least 20 kg(45 lbs)to determine theamount of fluid in each pail.Commercial equipment with anaccuracy of at least 1%is adequate.4.3 Stopwatch.4.4 Test FluidWater can be used as a test fluid if theviscosity of the dispersant to be used is not dissimilar to theviscosity of water.A surrogate fluid should be used if theviscosity difference is greater than approximately 100 timesthat of water.This can occur with more viscous dispersants orat low temperatures.The surrogate fluid could be water withthe appropriate amount of thickener.4.5 Acontinuing supply of water or test fluid,enough to runthe system during the test period,must be available.Tank truckquantities may be required.4.6 Auxiliary Power Units,where required.4.7 Thermometer,to measure the temperature of test fluid.4.8 FlowmeterA flowmeter should be incorporated intothe delivery system to measure the total flow out to the boomsand nozzles.5.Calibration Procedure5.1 SynopsisThe calibration procedure is done in foursteps.The first step is equipment inspection.Any defects arecorrected before further calibration.The second step is thecalibration of the flow meter.The third step is calibration of theunit by catching water spray from each nozzle.The fourth stepis the preparation of a calibration curve.1This practice is under the jurisdiction of ASTM Committee F20 on HazardousSubstances and Oil Spill Response and is the direct responsibility of SubcommitteeF20.13 on Treatment.Current edition approved April 1,2013.Published July 2013.Originallyapproved in 1993.Last previous edition approved in 2007 as F1460 07.DOI:10.1520/F1460-07R13.2For 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 5.2 Equipment Setup Place the application equipment at asuitable outdoor location and close to a supply of water or testfluid.Set up the equipment in accordance with the manufac-turers instructions and inspect visually.Start the unit.Allnozzles should visually be producing approximately the sameamount of spray.Inoperative nozzles or other elements such aspressure gages or flow meters,are repaired or replaced beforeproceeding.The operation of pressure gages should be verifiedbefore proceeding.5.3 Dispersant Flow Meter Calibration:5.3.1 Calibrate the flow meter using a surrogate fluid.Thissurrogate fluid could be water