NDAC 33.1-23-02-12
Solids and chemicals program methods
Cite as N.D. Admin. Code § 33.1-23-02-12
For analysis of solids and chemical samples as requested by the department or to support studies
of specific industries or for use in broad national surveys, laboratories shall use validated methods and
test procedures. Environmental protection agency methods are preferred but other state approved and
validated methods may be acceptable.