1.1 This terminology contains standard definitions of terms used in the general area of waste and waste management. It is intended to promote understanding by providing precise technical definitions of terms used in the standards developed by Committee D-34 and its subcommittees.

1.2 Because of the breadth of the subject of waste and waste management, only standard terms generally applicable to the overall subject or that are common to two or more subcategories are included in this terminology.

1.3 For terms of individual subcategories (such as sampling, waste characterization, land management, thermal treatment, etc.) within the general subject of waste and waste management, see the applicable specialized standard terminology listed in Section 2.

1.4 Terms used only within an individual standard, and having a meaning unique to that standard, may be defined or explained in the terminology section of that individual standard.