5447 International Standard (TSO INTERNATIONAL ORGANIZATION FOR STANDARDIZATIONMEXAYHAPOAHAA OPTAHM3AMA NO CTAHAAPTM3AUWMORGANISATION INTERNATIONALE DE NORMALISATION Ferrosilicomanganese - Specification and conditions of delivery Ferro-silico-manganese-Specifications et conditions de livraison First edition - 1980-12-15 ISO 5447-1980 (E) UDC 669.15'74'782-198 Ref. No. ISO 5447-1980 (E) Descriptors:ferroalloys,ferrosilicon,materials specifications, chemical composition,delivery，qualitycontrol,grainsize. Price based on 3 pages 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 membcr bodies for approval before their acceptance as International Standards by the ISo Council. International Standard ISO 5447was developed by Technical Committee ISO/TC 132, Ferroalloys, and was circulated to the member bodies in November 1979. It has been approved by the member bodies of the following countries : Australia India Romania Austria Italy South Africa, Rep. of Brazil Japan Sweden Canada Libyan Arab Jamahiriya United Kingdom China Norway USA Czechoslovakia Pakistan USSR France Poland Yugoslavia Germany,F.R Portugal No member body expressed disapproval of the document. International Organization for Standardization, 1980 Printed in Switzerland ISO5447-1980 (E) INTERNATIONALSTANDARD Ferrosilicomanganese - Specification and conditions of delivery 1 Scope and field of application d) Particle size ranges in accordance with the classes given in table 2. This International Standard specifies requirements and con ditions of delivery for ferrosilicomanganese usually supplied for e) Necessary requirements for analysis reports, packing, steelmaking and foundry use. etc., as appropriate. 2 References 5 Requirements ISo565,Test sieves-Wovenmetalwire clothandperforated plate -Nominal sizes of apertures. 5.1 Constitution of consignment Iso3713,Ferroalloys-Samplingandpreparationofsamples General rules.1) Ferrosilicomanganese shall be delivered in consignments con- stituted by one of the following methods. ISo4139,Ferrosilicon-Determinationofaluminiumcontent Flameatomicabsorptionspectrometricmethod. 5.1.1 Tapped lot method ISO4158， Ferrosilicon,ferrosilicomanganese and ferro- Aconsignment constituted bythetappedlotmethod consists silicochromium Determination of silicon content of a ferrosilicomanganese mass of one melt (or one part of a Gravimetric method. continuous tap). Iso4159,Ferromanganese andferrosilicomanganese-Deter- mination ofmanganese content-Potentiometricmethod. 5.1.2Gradedlotmethod A consignment constituted by the graded lot method consists 3Definition of a number of melts (or parts of continuous taps) of one ferrosilicomanganese designation. 3.1 ferrosilicomanganese: A master alloy of iron, manganese and silicon with manganese contents in the range The manganese and the silicon content of the melts (or parts o from 60,0 to 75,0 % by mass and silicon contents in the range continuoustaps)constituting theconsignment shall notdiffer from 10,0 to 35,0 % by mass, obtained by reduction. from each other by more than 3 % absolute. 4 Information for ordering 5.1.3 Blended lot method Orders for ferrosilicomanganese shall include the following in- A consignment constituted by the blended lot method consists formation. ferrosilicomanganese designation, which have been crushed to a) Quantity. a particle size less than x mm2) and thoroughly mixed. b) Constitution of consignment. The content of themain constituent of the melts (orpar