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Summary The hazards of excess residual solvent in solventextracted meals and methods currently used for its measurement are discussed. Preliminary results are reported with a simple copper‐cup flash‐tester with concentric rings as heating surfaces. Solvent contents as low as 0.03% can be detected. The method is semiquantitative. The method may be useful for plant control purposes.
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Gastrock et al. (1960) studied this question.
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