ISO 14446:1999

Published (Edition 1, 1999)

This standard was last reviewed and confirmed in 2022. Therefore this version remains current.

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Abstract

This International Standard specifies a method of determining the viscosity of industrial cellulose nitrate, usually

referred to as nitrocellulose, the nitrogen content of which can vary between 10,7 % by mass and 12,6 % by mass,

depending on the type.

It also gives a classification system for industrial cellulose nitrate solutions (see annex A) which is based on

viscosity measurements made using the method. The use of a standard procedure results in "standard" types and

avoids classification differences which could be caused by the fact that there are many ways of determining

viscosity and a wide variety of solvents available.

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