FMDs: Frequently Asked Questions

What is an FMD?
A full material disclosure (FMD) divulges every substance in a product down to the homogeneous level, broken down by location within the product, mass and concentration. An FMD can satisfy several regulations at oncesuch as the Registration, Evaluation, Authorisation and Restriction of Chemicals (REACH) Regulation, Restriction of Hazardous Substances (RoHS) Directive, and Safe Drinking Water and Toxic Enforcement Act of 1986 (Proposition 65)allowing suppliers to provide one FMD covering their products for all applicable Restricted Substance List (RSL) and Declarable Substance List (DSL) declarations.  

There are a number of formats for an FMD. The most common is the IPC-1752A, but some companies may provide the information in a different format such as the IEC-62474.

What Is the Homogeneous Level of a Substance?
Full material disclosures break a product down to its components and parts at a homogeneous level. Substances at a homogeneous level cannot be broken down further as they are composed of the same elements.

What Is an XML?
An XML is a file format commonly used for submitting IPC-1752 declarations. XML functionality in the Assent Compliance Manager (ACM) and the Supplier Portal, users and suppliers can submit XML declarations that are automatically parsed to extract embedded supporting documentation and substance information. 

What Is the IPC-1752A & What Is the Difference Between IPC Classes?

IPC-1752A is the standard created to support the data exchange need; it has established a common reporting format for material declaration data exchange between supply chains and support bulk materials, components, printed circuit boards, sub-assemblies and final products.

There are four IPC-1752A classes:

Class
Description
Declaration Type
A
A broad, company-level supplier compliance statement for any regulation whose substances are covered by the IPC-1752 standard 
Query/Reply
B
A supplier statement describing the number of different groupings of materials within a product
Material Group
D
A supplier-provided FMD divulging every substance in the product down to the homogeneous level, including location, mass, and/or PPM
Full Substances
C
A supplier-provided list of declarable substance categories with mass and total concentration at a product level within each group if above thresholds
Substance Summary Groups

 

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