5280 International Standard (ISO INTERNATIONAL ORGANIZATION FOR STANDARDIZATION MEXAYHAPOAHAA OPTAHW3ALWA NO CTAHAAPTW3ALWWORGANISATION INTERNATIONALE DE NORMALISATION MNsniernotDorwao Xylene for industrial use - Specification Xyleneausage industriel-Specifications First edition 1979-07-01 1979 UDC 547.534.2 Ref.No.1SO5280-1979(E) Descriptors:aromatic hydrocarbons,xylenes,physical properties,specifications. Price based on 2 pages FOREWORD Iso (the International Organization for Standardization) is a woridwide federation of national standards institutes (so member bodies). The work of developing International Standards is carried out through Iso technical committees. Every member body interested in a subject for which a technicat committee has been set up has the right tobe represented on that committee.International organizations, governmental and non-governmental, in liaison with Iso,aiso take part in the work. Draft International Standards adopted by the technicai committees are circulated to the member bodies for approval before their acceptance as International Standards by the Iso Council. International Standard ISo5280 was developedby Technical Committee ISO/Tc 78, Aromatic hydrocarbons, and was circulated to the member bodies in October 1977. It has been approved by the member bodies of thefollowing countries : Australia Hungary Portugal Austria India Romania Brazil. Korea, Rep.of South Africa, Rep. of Bulgaria Mexico Turkey Czechoslovakia Netherlands United Kingdom Egypt, Arab Rep.of Philippines USSR Germany,F.R. Poland The member bodies of the following countries expressed disapprovai of the document ontechnical grounds : France Italy InternationalOrganizationforStandardization,1979 Printed in Switzerland Copvriaht International Oroanization for Standardization INTERNATIONALSTANDARD ISO 5280-1979 (E) Xylene for industrial use -- Specification WARNING -Xylene is flammable and toxic by inhalation, Is5274,Aromatic hydrocarbons --Acid-wash test. ingestion or skin absorption. ISO5275,Aromatic hydrocarbons--Test for presence of mercaptans(thio/s)-Doctortest. 1SCOPEANDFIELDOFAPPLICATION Iso5276,Aromatichydrocarbons--Testforneutrality. This International Standard specifies requirements for xylene suitable for industrial purposes. ISo5277,Aromatic hydrocarbons -Determination of residue on evaporation.1) Itis applicable to materials which consist essentially of xylene isomers [CgH4.(CH3'2] and ethylbenzene Iso5281，Aromatichydrocarbons Determination of (CgHg.C2Hg). density at 20°c. NOTE - For some purposes it may be desirable that the interested ISO6271,Clear liquids- Estimationofcolourbythe parties agree on the composition of the xylene. platinum-cobalt scale.1) 2 REFERENCES Iso1523,Paints and varnishes -Determination of flash- 3 REQUIREDCHARACTERISTICS point--Closedcupmethod. The material shall conform to the characteristics shown in Iso2160,Petroleumproducts-Corrosivenesstocopper the table. Copperstriptest. NOTE -- Until such time as the test methods have been published ISo2211,Liquidchemicalproducts-Measurementof as International Standards, the methods used shall be the subject of agreement between the interested parties. colour in Hazen units (platinum-cobalt scale). IS03679, Paints and varnishes-Rapid test for determi- nation of flash point. 4 SAMPLING2) ISO4626,Volatileorganic liquids- Determination of Take a representative sample of not less than 1000ml boiling range. fromthebulk ofthe material. 1) Atpresent atthestage of draft 2) The sampling of xylene and other aromatic hydrocarbons will form the subject of Is0 1995. Copvriaht International Oroanization for Standardization