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Two male employees in an industry producing plastic emulsions acquired contact dermatitis from preservatives. One was sensitized to both components in a preservative, i.e. 1,2-benzisothiazolin-3-one and ethylene diamine. The other man acquired a contact allergy to 1,2-benzisothiazolin-3-one and to another preservative, formaldehyde.
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Niels Bang Pedersen (1976) studied this question.
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