ISO 1109-1975 pdf free.Refractory products — Classification of dense shapedrefractory products.
ISo(the International Organization for Standardization) is a worldwide federationof national standards institutes (ISO Member Bodies). The work of developingInternational Standards is carried out through ISO Technical Committees. EveryMember Body interested in a subject for which a Technical Committee has been setup has the right to be represented on that Committee.International organizations,governmental and non-governmental, in liaison with lSO , also take part in the work.Draft International Standards adopted by the Technical Committees are circulatedto the Member Bodies for approval before their acceptance as InternationalStandards by the lSO Council.Prior to 1972, the results of the work of the Technical Committees were publishedas ISO Recommendations; these document are now in the process of beingtransformed into International Standards. As part of this process，TechnicalCommittee lSO/TC 33 has reviewed lSO Recommendation R 1109 and found ittechnically suitable for transformation.International Standard lS0 1109 thereforereplaces ISO Recommendation R 1109-1969 to which it is technically identical.
This International Standard establishes a classification of dense shaped refractory producThe terminology used is in accordance with ISO/R 836,Vocabulary for the refractories industry.NOTE The classification of prepared unshaped refractory materials and that of shaped insulating refractory products are given in lS0 1927and lSO 2245 respectively.ISO 1109 pdf download.