Stability Class 2
Stability Class 2 : Meteorologists distinguish three states of the atmospheric surface layer: unstable, neutral, and stable. These categories refer to how a parcel of air would react when displaced adiabatically in the vertical direction. Pasquill stability types: A: Extremely unstable B: Moderately unstable C: Slightly unstable D: Neutral E: Slightly stable F: Moderately stable Standard: A generic, all-encompassing term used to describe documents that provide a specified set of mandatory or discretionary rules, requirements or conditions concerned with performance, design, operation, or measurements of quality to accomplish a specific task. Standards may include federal laws, regulations, state laws, federal agency directives, national and international technical standards, codes of conduct, or even organizational "internal use only" documents. A standard may also include a specified set of discretionary rules or conditions concerned with the classification of components; delineation of procedures; definition of terms; specifications of materials, performance, design, or operations; or measurements of quality in describing materials, products, systems, services or practices
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