3.3.3 IMDS Committee Materials
IMDS materials are unofficially divided into two basic categories: Standard and Custom.
Standard materials are typically available “off the shelf” in specific formulations, sizes and
shapes from a variety of sources according to specific industry standards. Some of these
standard materials do not follow the “normal” material rules and should in fact be components.
For example, a zinc-coated steel is not homogeneous, and should technically be a component.
However, if this zinc-coated steel is specified under one or more industry standards which
adequately specify the material composition, there is a good chance it is available as an IMDS
standard material. These materials are known as “IMDS Committee Materials”.