All colorants are used at the recommended let-down ratio to meet 21CRF 178.3297. Loc-Line is not sanctioned for use with alcoholic or fatty foods at any temperature. This material meets NSF International Standards 14, 51 and 61 for contact with potable water Please note that all applications have variables and conditions that will affect the maximum working pressures. Testing suitability for your application is always recommended. Lockwood Products Inc. does not warrant any particular application for it's products.