6706 nternational Standard (ISO INTERNATIONALORGANIZATION FOR STANDARDIZATION+MEKAYHAPOAHAHOPTAHM3ALMHTIOCTAHAAPTM3ALMW+ORGANISATIONINTERNATIONALEDE NORMALISATION Plastics laboratory ware -- Graduated measuring cylinders Materiel de laboratoire en plastique-Eprouvettes graduees cylindriques First edition - 1981-07-01 UDC 542.3 : 678.06 : 531.732 Ref. No. ISO 6706-1981 (E) Not for Resale Foreword ISo (the International Organization for Standardization) is a worldwide federation of national standards institutes (isO member bodies). The work of developing Inter- national Standards is carried out through isO technical committees. Every member body interested in a subject for which a technical committee has been set up has the right to be represented on that committee. International organizations, governmental 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 ISO 6706 was developed by Technical Committee ISO/TC 48, Laboratory glassware and related apparatus, and was circulated to the member bodies in October 1979. It has been approved by the member bodies of the following countries : Australia Italy Romania Brazil Korea, Rep. of South Africa, Rep. of Canada Libyan Arab Jamahiriya Spain France Mexico United Kingdom Germany, F. R. Netherlands USSR Hungary Poland India Portugal No member body expressed disapproval of the document. @ International Organization for Standardization, 1981 ed without license from IHS Not for Resale INTERNATIONAL STANDARD ISO 6706-1981 (E) Plastics laboratory ware --- Graduated measuring cylinders 4 Series of nominal capacities 1 Scope and field of application This International Standard specifies requirements for a series The series of nominal capacities of graduated measuring of plastics cylinders having a graduated volumetric scale and a cylinders shall be as shown in table 1. pouring spout. Table1 -Series of capacities,divisions and tolerances NOTE -- Cylinders may also be provided with two scales. Maximum Maximum Nominal Smallest ungraduated permitted capacity division capacity error at base References 2 ml ml ml ml 10 0,1 ± 0,1 1 Iso 384, Laboratory glassware - Principles of design and con- 10 0,2 ± 0,2 1 struction of volumetric glassware. 25 0,5 ± 0,5 2,5 Density hydrometers for IsO649/2,Laboratoryglassware- 50 ± 1 1 5 general purposes --- Part 2 : Test methods and use, 1] ± 1 100 10 1 250 2 ± 2 24 IEC Publication 335/1, Safety of household and similar elec- trical appliances - Part 1 : General requirement. 500 5 ± 5 50 1 000 10 ± 10 100 2 000 20 200 ± 20 4 000 09 ± 50 400 3 Basis of adjustment 3.1 Unit of volume Definition of capacity 5 The unit of volume shall be the cubic centimetre (cm3), for The capacity correspondinge to any graduation line shall be which the name mililitre (ml) may be used. defined as the volume of water at 20 oC, expressed in millitres, contained by the cylinder at 20 oc when filled to that gradua- NOTE - The term millitre (ml) is commonly used as a special name tion line in accordance with the procedure given in clause A.1 for the cubic centimetre (cm3), in accordance with the international of annex A. System of Units (SI). NOTE - Where, exceptionally, the reference temperature is 27 °C, this value shall be substituted for 20 °C. Reference temperature 3.2 6 Accuracy The standard reference temperature, i.e. the temperature at There shall be one class of accuracy. which the cylinder is intended to contain its nominal volume (nominal capacity), shall be 20 °C. When tested in accordance with annex A, the errors in capacity shall not exceed the.maximum permitted errors shown NOTE -- When the cylinder is required for use in a country which has in table 1. The error represents the maximum permissible error adopted a standard reference temperature of 27