Holland test
The Holland test is a test method for pyrotechnic charges (chemical mixtures) that was developed in 1927 by the Dutchman Thomas. Fuels are heated for 72 hours at 105 ° C (polybasic propellants such as mixtures of nitrocellulose and nitroglycerin ) or at 110 ° C (monobasic propellants such as nitrocellulose), whereby their chemical resistance is tested. It is important to note that the loss of mass that occurs in the first eight hours must not be more than 2%. The procedure is carried out using standardized vessels, usually tubes with a ground joint or small flasks.
Through this test the escape of gaseous decomposition products, such as e.g. B. carbon dioxide and nitrogen as well as measured by water.
Individual evidence
- ^ Brockhaus ABC Chemie , VEB FA Brockhaus Verlag Leipzig 1965, p. 1149.
- ^ Rudolf Meyer: Explosivstoffe , 6th edition, VCH Verlagsgesellschaft, 1985, ISBN 3-527-26297-0 , p. 169.