Section NR 660.21 - Petitions for equivalent testing or analytical methods(1) Any person seeking to add a testing or analytical method to ch. NR 661, 664 or 665 may petition for a rule amendment under this section and s. NR 660.20. To be successful, the person shall demonstrate to the satisfaction of the department that the proposed method is equal to or superior to the corresponding method prescribed in ch. NR 661, 664 or 665, in terms of its sensitivity, accuracy and precision (i.e., reproducibility).(2) Each petition shall include all of the following, in addition to the information required by s. NR 660.20: (a) A full description of the proposed method, including all procedural steps and equipment used in the method.(b) A description of the types of wastes or waste matrices for which the proposed method may be used.(c) Comparative results obtained from using the proposed method with those obtained from using the relevant or corresponding methods prescribed in ch. NR 661, 664 or 665.(d) An assessment of any factors which may interfere with, or limit the use of, the proposed method.(e) A description of the quality control procedures necessary to ensure the sensitivity, accuracy and precision of the proposed method.(3) After receiving a petition for an equivalent method, the department may request any additional information on the proposed method which the department may reasonably require to evaluate the method.(4) If the department amends the rules to permit use of a new testing method, the method will be incorporated in "Test Methods for the Evaluation of Solid Waste: Physical/Chemical Methods," SW-846, incorporated by reference in s. NR 660.11.Wis. Admin. Code Department of Natural Resources NR 660.21
CR 05-032: cr. Register July 2006 No. 607, eff. 8-1-06.