(Iso International Standard 6599/1 INTERNATIONAL ORGANIZATION FOR STANDARDIZATION MEXAYHAPOAHAR OPIAHW3AUMA O CTAHAAPTW3AUWMORGANISATION INTERNATIONALE DE NORMALISATION Packaging - Sacks - Conditioning for testing - Part 1 : Paper sacks Emballages-Sacs-Conditionnementpouressais-Partie1:Sacs enpapier First edition 1983-04-15 UDC 621.798.15:676.821 Ref. No. ISO 6599/1-1983 (E) ISO6599/1-1983 Descriptors:packages,bags,testingconditions. Price based on 2 pages Foreword Iso (the International Organization for Standardization) is a worldwide federation of national standards bodies (isO 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 technical committee has been authorized has the and non-governmental, in liaison with Iso, also take part in the work. Draft International Standards adopted by the technical committees are circulated to the member bodies for approval before their acceptance as International Standards by the ISo Council. International Standard ISo6599/1wasdeveloped by,Technical Committee ISO/TC 122, Packaging, and was circulated to the member bodies in February 1982. It has been approved by the member bodies of the following countries : Australia India South Africa, Rep. of Austria Ireland Spain Brazil Israel Sweden Canada Italy Switzerland Denmark Japan Turkey Egypt, Arab Rep. of Malaysia United Kingdom Finland Netherlands USA France Poland USSR Germany, F. R. Romania Yugostavia No member body expressed disapproval of the document. International Organization for Standardization, 1983 Printed in Switzerland Coovriaht Intemational Oraanizatioi ISO6599/1-1983(E) INTERNATIONALSTANDARD Packaging '- Sacks - Conditioning for testing Part 1 : Paper sacks 0 Introduction Definitions The physical properties of paper are affected materially by its For the purposes of this International Standard, the following moisture content, which is dependent on the humidity and definitions apply. temperature of the surrounding atmosphere. In order that tests may be made on a paper sack in a defined physical state, it is 5.1 relative humidity (R.H.) : The ratio of the absolute brought into equilibrium with an atmosphere of standardized temperature and relative humidity, and tested in that'at- humidity of the air to the humidity of air saturated with water vapour at the same temperature and pressure. mosphere. NOTE -- This ratio is usually expressed as a percentage. At ordinary 1 Scope atmospheric temperatures, this ratio is almost exactly equal to the ratio of the actual vapour pressure to the saturation vapour pressure at the same (dry bulb)temperature. This part of Iso 6599 specifies the conditioning atmospheres and the method for conditioning samples of intact, empty paper sacks before and during testing. 5.2 conditioning:Theestablishment of atemperature and moisture content equilibrium between empty sacks and an at- If only conventional paper tests are to be carried out on the mosphere of specified temperature and relative humidity. material of a sack, samples of this material shall be cut out and conditioned as specified in Iso 187. 6 Conditioning atmospheres 2 Field of application The table indicates suitable conditioning atmospheres. This part of iso 6599 applies to all types of empty paper sacks Unless otherwise stated in the relevant specifications or test as specified in IsO 6590/1. methods, or agreed between the interested parties, at- mosphere 23/50 shall be used. References NOTE - The temperature and relative humidity conditions are those specified in ISo 187 and ISO 554. The tolerances quoted are the Iso187,Paperandboard-Conditioningof samples. reduced or close tolerances specified in Iso 554. ISO 554, Standard atmospheres for conditioning and/or testing Specifications. Table Iso6590/1,Packaging-Sacks--Vocabulary and types 一 Relative Part 1 : Paper sacks.1) Designation /Temperature humidity Remarks % 23/50 23 ± 1 50