ASTM_F_1385_-_07_2012.pdf

Designation:F138507(Reapproved 2012)An American National StandardStandard Practice forPlatforms in Cargo Tanks1This standard is issued under the fixed designation F1385;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 provides design,construction,and instal-lation criteria for platforms in cargo tanks.1.2 Where platforms are attached to ladders see Figs.1-4.1.3 The values stated in SI(metric)units are to be regardedas the standard.The inch-pound units given in parentheses arefor information only.1.4 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:2A36/A36M Specification for Carbon Structural Steel2.2 Military Specification:MIL-G-18015 Grating,Metal,Other than Bar Type(Ship-board Use)32.3 Federal Standard:FED-SPEC-RR-C-271 Chain and Attachments,Welded andWeldless42.4 ABS Standard:American Bureau of Shipping Rules for Building andClassing Steel Vessels52.5 AWS Standard:AWS D1.1 Structural Welding CodeSteel62.6 Other Standards:SAE-AMS-C-27725 Coatings,Corrosion Preventative,Polyurethane,for Aircraft Integral Fuel Tanks for Use to250 Degrees F(121 Degrees C)3Steel Structures Painting Council Specification73.Significance and Use3.1 This practice establishes the procedure for the construc-tion and installation of platforms to be fabricated and installedby the shipyards within the cargo tanks.4.Materials and Manufacture4.1 Materials:4.1.1 GratingsOnly MIL-G-18015 Type I and Type IIIgratings are to be used.4.1.2 Flanged Plate SupportsFabricated from 10 by 380mm(approximately38by 15 in.)with a 75-mm(approximately3in.)flange of carbon steel plate in accordance with Specifi-cation A36/A36M.4.1.3 Angle Supports75-by 75-by 10-mm(approxi-mately 3-by 3-by38-in.)structural angles of carbon steel inaccordance with Specification A36/A36M.4.1.4 Stanchions and railings25 mm(approximately 1 in)diameter carbon steel in accordance with Specification A36/A36M.4.1.5 Ladder Clips are to be made in accordance withSpecification A36/A36M.4.2 Manufacture:4.2.1 Platforms shall be constructed as shown in Figs.1-4.4.2.2 The dimensions indicated in Figs.1-4 are for thecommonly used sizes.However,dimensions can be modified tosuit other existing structures.4.2.3 Platforms shall be designed to support static loads ofat least 14 kPa(approximately 300 psf).4.2.4 Platforms shall be locally reinforced where greaterloads are contemplated for removal or disassembly of machin-ery.1This practice is under the jurisdiction of ASTM Committee F25 on Ships andMarine Technology and is the direct responsibility of Subcommittee F25.03 onOutfitting and Deck Machinery.Current edition approved June 1,2012.Published October 2012.Originallyapproved in 1992.Last previous edition approved in 2007 as F1385-07.DOI:10.1520/F1385-07R12.2For 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 Naval Sea Systems Command(NAVSEA),1333 Isaac HullAve.,SE,Washington,DC 20376,http:/www.navsea.navy.mil.4Available from Standardization Documents Order Desk,DODSSP,Bldg.4,SectionD,700RobbinsAve.,Philadelphia,PA19111-5098,http:/www.dodssp.daps.mil.5Available from American Bureau of Shipping(ABS),ABS Plaza,16855Northchase Dr.,Houston,TX 77060,http:/www.eagle.org.6Available from American Welding Society(AWS),550 NW LeJeune Rd.,Miami,FL 33126,http:/www.aws.org.7Available from Society for Protective Coatings(SSPC),40 24th St.,6th Floor,Pittsburgh,PA 15222-4656,http:/www.sspc.org.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 4.2.5 All welding shall be in accordance with AmericanBureau of Shipping Rules for Building and Classing SteelVessels or AWS D1.1.4.2.6 Tolerances shall be under 6 6164in.,from 6 to 24 6132in.,and over 24 6116in.5.Dimensions5.1 Openings in railings serving ladders to lower levels shallnot be more than 690 mm(approximately 27 in.)wide.5.2 Safety chains with snap hooks shall be provided to closesuch openings at heights of 530 and 1060 mm(approximately21 and 42 in.)above the walking surface.Chain shall bewelded and shall be in accordance with FED-SPEC-RR-C-271.6.Workmanship,Finish,and Appearance6.1 Platforms shall be free of all sharp edges,burrs,projections,weld splatter,and other defects that might beinjurious to personnel or equipment,or both.FIG.1 Cargo PlatformBulkheadF1385 07(2012)2 6