1、Designation:D766010Standard Guide forConducting Internal Pressure Tests on United Nations(UN)Packagings1This standard is issued under the fixed designation D7660;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the year of last revisi
2、on.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 guide is intended to provide a standardized methodand a set of basic instructions for performing internal andhydrostatic pressure
3、 testing on packaging designs.1.2 This guide provides information to help clarify variousterms used as part of the United Nations(UN)certificationprocess that may assist in determining the applicable test.1.3 This guide provides the suggested minimum informa-tion that should be documented when condu
4、cting pressuretesting.1.4 This guide provides information for recommendedequipment and fittings for conducting pressure tests.1.5 This guide is based on the current information containedin 49 CFR,173.27 and 178.605.1.6 When testing packaging designs intended for hazardousmaterials(dangerous goods),t
5、he user of this guide shall betrained in accordance with 49 CFR 172.700 and otherapplicable hazardous materials regulations such as the ICAOTechnical Instructions,IMDG Code,and carrier rules such asthe IATA Dangerous Goods Regulations.1.7 The values stated in SI units are to be regarded asstandard.N
6、o other units of measurement are included in thisstandard.1.8 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
7、 of regulatory limitations prior to use.2.Referenced Documents2.1 ASTM Standards:2D4919 Guide for Testing of Hazardous Materials PackagingsD4991 Test Method for Leakage Testing of Empty RigidContainers by Vacuum Method2.2 Federal Standard:349 CFR U.S.Department of Transportation Code of FederalRegul
8、ations Title 49,Transportation Parts 100-1852.3 UN Standard:4UN United Nations Recommendations on the Transport ofDangerous Goods,Model Regulations2.4 IATA Standard:5IATA Dangerous Goods Regulations2.5 ICAO Standard:6ICAO Technical Instructions for the Safe Transport of Dan-gerous Goods by Air2.6 IM
9、DG Standard:7IMDG Code International Maritime Dangerous Goods Code3.Terminology3.1 Definitions:3.1.1 bar,nmetric unit of atmospheric pressure equal to14.50 psi(lb/in.2),1.02 kg/cm2,29.53 in.-Hg,or 0.9869atmosphere.3.1.2 hydrostatic pressure test,ninternal pressure testconducted on a container or pac
10、kaging filled with water andpressurized with water or other suitable means;regulatoryreference sections:49 CFR 178.605,UN 6.1.5.5,IMDG Code6.1.5.5,ICAO 6.4.5,and IATA 6.3.5.3.1.2.1 DiscussionThis test is required for all single andcomposite packagings intended for shipping liquid dangerousgoods(haza
11、rdous materials).For single and compositepackagings,the test pressure rating will appear as part of theUN specification marking sequence.This test may also be usedto comply with the pressure differential requirements for air1This guide is under the jurisdiction ofASTM Committee D10 on Packaging andi
12、s the direct responsibility of Subcommittee D10.21 on Shipping Containers andSystems-Application of Performance Test Methods.Current edition approved Aug.15,2010.Published September 2010.DOI:10.1520/D766010.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Se
13、rvice at serviceastm.org.For Annual Book of ASTMStandards volume information,refer to the standards Document Summary page onthe ASTM website.3Available from U.S.Government Printing Office Superintendent of Documents,Washington,DC 204029371,http:/phmsa.dot.gov/hazmat.4Available from the UN Economic C
14、ommission for Europe,InformationService,Palais des Nations,CH-1211 Geneva 10,Switzerland,http:/www.unece.org/trans/danger/danger.htm.5Available from the International Air Transport Association(IATA),800 PlaceVictoria,PO Box 113,Montreal,Quebec,H4Z 1M1,Canada,http:/www.iata.org.6Available from the In
15、ternational Civil Aviation Organization(ICAO),999University St.,Montreal,Quebec,H3C 5H7,Canada,http:/www.icao.org.7Available from the International Marine Organization(IMO),4 AlbertEmbankment,London,SE1 7SR,U.K.,http:/www.imo.org.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Co
16、nshohocken,PA 19428-2959.United States1 transportation(49 CFR 173.27)for inner packagings ofcombination packagings intended for shipping liquid hazard-ous materials.For further discussion and clarification,refer tothe pressure differential section.3.1.3 inches-mercury,in.-Hg,npressure exerted by a2.54-cm high column of mercury that has a density of13.5951 gcm3when the acceleration of gravity has the stan-dard value of 9.8 m/s2;used as a unit in the measurement ofatmospheric pressure.One in.-Hg i
