Section Env-Hw 403.04 - Corrosivity(a) A waste that exhibits the characteristic of corrosivity shall be assigned the EPA hazardous waste number of D002 if it meets the criteria set forth in (b)(1) or (2), below, and the NH hazardous waste number of NH02 if it meets the criteria set forth in (b)(3), below.(b) A waste shall be classified under these rules as corrosive if a representative sample has any of the following characteristics: (1) It is aqueous and has a pH of less than or equal to 2, or greater than or equal to 12.5, as determined by a pH meter using either method 9040 in EPA publication SW-846, as specified in Env-Hw 104 and available as noted in Appendix B, or an equivalent test method approved by the administrator of EPA under the procedures set forth in 40 CFR 260.20 and 40 CFR 260.21;(2) It is a liquid and corrodes steel (SAE 1020) at a rate of greater than 6.35 mm or 0.250 inch per year at a test temperature of 55°C (130°F) as determined by method 1110A in EPA publication SW-846, as specified in Env-Hw 104 and available as noted in Appendix B, or an equivalent test method approved by the administrator of EPA under the procedures set forth in 40 CFR 260.20 and 40 CFR 260.21; or(3) It is a non-aqueous waste that when mixed 50% by weight with distilled water, or a gaseous material that when mixed with distilled water to form a 2 molar solution, yields a pH less than or equal to 2 or greater than or equal to 12.5 as measured with a pH meter using the protocol specified in method 9045D of EPA publication SW-846, as specified in Env-Hw 104 and available as noted in Appendix B.N.H. Admin. Code § Env-Hw 403.04
#5053, eff 1-24-91; ss by #5886, eff 8-26-94; amd by #7207-B, eff 2-26-00; ss by #7333, eff 8-1-00; ss by #9215, INTERIM, eff 8-1-08; (See Revision Note at chapter heading for Env-Hw 400) ss by #9367, eff 1-28-09; amd by #10205, eff 10-19-12
Amended by Volume XXXVII Number 32, Filed August 10, 2017, Proposed by #12346, Effective 8/14/2017, Expires 8/14/2027.