AS 1920-1976 PDF
Dental agar impression material
standard by Standards Australia, 01/01/1976
Applies to reversible, thermoplastic, agar type of hydrocolloidal impression material. It does not cover agar duplicating materials used to reproduce dental models; these are specified in AS 1097. It specifies impression taking ability, behaviour on heating, temperature of gel formation, ability to record surface detail, mechanical properties, packaging and marking.
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