27 Mar 2021
A Material compliance document is a comprehensive list of all the ingredients and substances within a product or a part. The document provides the percentage weight of each individual substance or material in the part and the percentage weight of each substance that has been intentionally to mixed with other substances.
A typical example of Material compliance document is here:
The important elements in a Material Compliance Document are:
- Component: A component is a combination of materials that are formed into a single mechanical or electrical part produced to support to bigger product. The major components could be microprocessors, plastic enclosures/boxes, batteries, capacitors, fan belts, gaskets, etc.
- Homogeneous Material: Any material that is made of uniform properties and which cannot be separated by actions such as cutting, crushing, heating, or electrocuting processes. For example: Mold Compound, Lead frame, Ceramic, and many more.
- Substance: Any element and its compounds in the natural state or produced as a composition by any manufacturing process can be defined as substance. For example: Fused Silica, Carbon Black etc.
- CAS number (#): Chemical Abstract System (CAS) registry numbers acts as identifier of various chemical compositions and are assigned to each chemical to keep it unique. The CAS is assigned in sequential system and is an international standard as since 1957 and made available under CC-BY-NC license at ACS Commons Chemistry. For example: the CAS# for Graphite is 7782-42-5.
- PPM: PPM is the abbreviation for “parts per million”, this is the standard measuring unit for chemical and its composition concentrated in a product or a part. The weightage percentage is calculated like this: 1 ppm = 1 mg/kg = 0.0001 % by weight.
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