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U.S. Department of Health and Human Services

Threshold of Regulation (TOR) Exemptions

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TOR No. 1999-015

Threshold of Regulation Exemptions are generally applicable and are effective for the food contact substance (FCS) for the listed intended use regardless of manufacturer or supplier.
Food Contact Substance: 2-Ethyl-1,3-hexanediol (CAS Reg. No. 94-96-2)
Use Limitations*: As the diol component of polyurethane adhesives used in the construction of reverse osmosis membranes for filtering water and aqueous-based liquid food provided the reverse osmosis membrane meets all applicable limitations in 21 CFR 177.2550 and the maximum temperature of use does not exceed 140°F.
Requestor: Elementis Performance Polymers
Quick Links to regulations in 21 CFR (referenced above): 177.2550

*For references to food types and conditions of use, see Food Types & Conditions of Use for Food Contact Substances.

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