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U.S. Department of Health and Human Services

Threshold of Regulation (TOR) Exemptions
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TOR number 1997-001

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: Trimellitic anhydride
Use Limitations*: As a crosslinking agent at a use level of 0.04% by weight in the manufacture of polyethylene terephthalate/isophthalate copolymers containing 67.7 weight percent terephthalic acid, 2.7 weight percent isophthalic acid and 29.7 weight percent ethylene glycol destined for use in contact with all types of food at room temperature (120°F) or below.
Requestor: Chemtest Laboratories Inc., on behalf of Sunkyong Industries

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