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Heat stability

Heat stability is determined according to the Part 21 of ISO 787. The specimen is dispersed in a binder and tested in the form of a film having a wet thickness of 75 to 120 im. The temperature of exposure in a ventilated oven is selected based on the anticipated exposure of the material in its intended application. [Pg.234]

The behavior of a fiying oil, when heated, is assessed from the content of oxidized fatty acids which are insoluble in petroleum ether and from the smoke point (cf. 3.7.4) of the fat or oil. The smoke point of a fat or oil is the temperature at which its triacylglycerols start to decompose in the presence of air. Smoke is the sign of decomposition. The smoke point of a fat or oil is normally in the range of 200-230 °C during pro- [Pg.668]

Unlike a , the indicators b appear even on relatively gentle deodorization [Pg.669]

The addition of a refined oil to natural plant oil is detected by the determination of substances which can be formed during bleaching and deodorization (cf. Table 14.28). [Pg.669]

DGF-Einheitsmethoden. Ed. Deutsche Gesellschaft flir Fettwissenschaft e.V, MunsterAVestf., Wis- [Pg.669]

Native und nicht raflSnierte Speisefette und -ole. Fat Sci. Technol. 93, 545 (1991) [Pg.669]

Thermoplastic polymers are processed at relatively severe conditions. The process can involve high pressure and sheer with temperatures in the range of 150 C to 250 C. The biocide must be able to survive this process without decomposing or reacting with other formulation ingredients. [Pg.333]

Heat-resistant fib( Heat-resistant polymers Heat-set inks Heatshield Heat shields Heat stability Heat stabilizers... [Pg.466]

Lead glance Lead glass Lead heat stabilizers Lead hydrogen arsenate Lead hydroxide... [Pg.558]

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Heat stabilization

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