ASTM_F_2045_-_00_2011.pdf

Designation:F204500(Reapproved 2011)An American National StandardStandard Specification forIndicators,Sight,Liquid Level,Direct and Indirect Reading,Tubular Glass/Plastic1This standard is issued under the fixed designation F2045;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.This standard has been approved for use by agencies of the U.S.Department of Defense.1.Scope1.1 This specification covers the requirements for direct andindirect reading sight liquid level indicators for general appli-cations.General applications for indirect reading sight glassesare water and fuel service at working pressures 2.07 MPa(300lb/in.2)and below,temperatures of 149C(300F)and below.General applications for direct reading sight glasses are appli-cations in which the temperature does not exceed 66C(150F).1.2 Direct reading sight glass indicators may consist of glassor plastic tubes with fittings including shutoff valves.Glasstubes may be used for low shock direct reading sight glassindicators in which the fluid is not compatible with plastic.1.3 Indirect reading indicators may consist of a sealedchamber with a magnetic float or flag indicator.1.4 Special requirements for naval shipboard applicationsare included in the supplement to this standard.1.5 The values stated in SI units are to be regarded as thestandard.The values given in parentheses are for informationonly.2.Referenced Documents2.1 ASTM Standards:2D3951 Practice for Commercial Packaging2.2 ANSI Standards:B16.5 Pipe Flanges and Flanged Fittings(DoD adopted)33.Terminology3.1 Definitions:3.1.1 SI(Le Systeme International dUnites)Unitsunits ofmeasurement recognized by the CIPM(Comite Internationaldes Poids et Mesures).4.Design Classification4.1 TypesIndicator designs are classified as either directreading or indirect reading.Both types are depicted in Fig.1,complete with dimensions that facilitate ordering.4.2 Special ConsiderationsSpecial considerations thatmay affect selection and installation are listed below.This isnot to be construed as a complete listing.(1)Type of indicator,(2)Manual or automatic shutoff valves,(3)Indication length of liquid level range,(4)Method of connection,(5)Location of indicator relative to vibrating equipment,(6)Protection of the instrumentation,(7)Application of each indicator,(8)Cleaning procedure or reference to the cleaning proce-dure being used,and(9)Selection of indicator for compatibility with materials,temperature,pressure,ambient environment,and with theparameter being measured.5.Ordering Information5.1 The buyer shall provide the manufacturer with all of thepertinent application data outlined in the acquisition require-ments.5.2 Acquisition RequirementsAcquisition documents shallspecify the following:(1)Title,number,and date of this specification;(2)Type and quantity of indicators required;(3)Manufacturers part number;(4)When qualification testing is required;(5)Final disposition of qualification test samples;(6)Environmental requirements;(7)Operating media;(8)Viscosity and specific gravity of fluid for indirectindicators;(9)Materials;(10)Indication length;1This specification is under the jurisdiction of ASTM Committee F25 on Shipsand Marine Technology and is the direct responsibility of Subcommittee F25.10 onElectrical.Current edition approved April 1,2011.Published April 2011.Originallyapproved in 2000.Last previous edition approved in 2006 as F2045 00(2006).DOI:10.1520/F2045-00R11.2For 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.3Available from American National Standards Institute(ANSI),25 W.43rd St.,4th Floor,New York,NY 10036,http:/www.ansi.org.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1(11)Size and type of connections;(12)Shutoff valve requirements;(13)Cleaning requirements;(14)When certification is required;(15)Marking requirements;(16)Unique packaging requirements;and(17)Unique preservation requirements.6.Materials and Manufacture6.1 MaterialsThe materials for all wetted parts shall beselected for long-term compatibility with the process mediumand ambient conditions.6.2 Material InspectionThe manufacturer shall be respon-sible for ensuring that materials used are manufactured,examined,and tested in accordance with the specifications andstandards as applicable.6.3 Gaskets and O-RingsGaskets and O-rings shall befabricated of materials suitable to the operating pressure,temperature,and process medium for each application.7.Physical Properties7.1 ConnectionsSight indicators are usually installed us-ing standard pipe fittings or flanges.Pip