CFR (Code of Federal Regulations). Available from the Superintendent of Documents, U.S. Government Printing Office, Washington, D.C. 20402, 202-783-3238.
Method Detection Limit Definition, appendix B to Part 136, 40 CFR 136 (2017).
49 CFR 173 (2017).
NTIS. National Technical Information Service, 5301 Shawnee Road, Alexandria VA 22312.
"Test Methods for Evaluating Solid Wastes, Physical/Chemical Methods", EPA Publication No. SW-846, as amended by Updates I, II, IIA, IIB, III, IIIA, and IIIB I, (Third Edition, 1986, as amended by Revision I (December 1987), Doc. No. 55-001-00000-1) (available online).
Ill. Admin. Code tit. 35, § 615.103