The international IEC 62474 declarable substances list (DSL) and data exchange format was updated on April 9, 2014. IEC 62474 provides the electrical and electronics industry with a material declaration standard and an internationally recognized list of substances that should be declared by suppliers to downstream manufacturers.
Additions to the Declarable Substance List (DSL)
There were several additions and modifications to the Declarable substance groups and declarable substances and the reference substances. The substances added to the DSL are shown in Table 1.
Table 1: Substances/Substance Groups added to the IEC 62474 DSL
|Substance Group||Substance Name||CAS number||Typical Applications|
|Cadmium/Cadmium Compounds||Cadmium sulphide||1306-23-6||Used in photo-resistors, solar cells and piezoelectric tranducers|
|Trixylyl phosphate||25155-23-1||Used as a plasticizer for vinyl resin, cellulose resin, natural and synthetic rubber. Also, used as a flame retardant.|
|Disodium 3,3'-[[1,1'-biphenyl]-4,4'-diylbis(azo)]bis(4-aminonaphthalene-1-sulphonate) (C.I. Direct Red 28)||573-58-0||Dye for textiles and paper|
|Imidazolidine-2-thione; (2-imidazoline-2-thiol)||96-45-7||used as a catalyst in some acrylic adhesive glues which may be used in adhesive tapes (for example, double sided adhesive tapes which may be used to hold the back-light in place in mobile phones)|
|Perfluorooctanoic acid (PFOA) and individual salts and esters of PFOA||see reference substances||Textiles, photographic coatings applied to films, paper or printing plates and other coated consumer products.|
The reporting threshold for the substance group “Perfluorooctanoic acid (PFOA) and individual salts and esters of PFOA ” varies depending on the application. If your material or product contains any of the substances in this substance group, please see the specific reportable applications and reporting thresholds in the online IEC 62474 database. A list of substances that make up this substance group have been provided in the IEC 62474 database under reference substances.
Note: The substance known as C.I. Direct Black 38, which was added to the SVHC Candidate List in December 2013, was not added to the DSL at this time, but may be added during the next update.
Modifications were made to the DSL entries for Strontium chromate (Basis changed from criteria 2 to criteria 1) and Di-n-hexyl Phthalate (DnHP) (it’s inclusion in the REACH SVHC Candidate List required a change to the reporting threshold to include “0.1 mass%”. The typical applications for “Cadmium/Cadmium compounds” was updated.
The substance “4-[4,4′-bis(dimethylamino) benzhydrylidene] cyclohexa-2,5-dien-1-ylidene] dimethylammonium chloride (C.I. Basic Violet 3)” was deleted from the DSL. The IEC 62474 International validation team reviewed new evidence suggesting that C.I. Basic Violet 3 is not contained in EEE products above the threshold and approved the deletion from the DSL.
Lead di(acetate) was also removed as a reference substance under lead/lead compounds. When Lead di(acetate) was added to the SVHC Candidate List, it was assessed in more detail and the conclusion was that it does not meet the criteria to include it on the DSL. Consequently, the substance was also deleted as a reference substance to avoid confusion.
The revised substance/material lists are version D6.00
Changes to the XML Schema
- The sequence of xml element in the substance and substance group classes have been alphabetized for consistency;
- A Unique ID element was added to the Substance Group Class allowing users to identify substance groups in their material declaration based on the ID of the substance group in the DSL;
- Add a data element (UniqueID class) to Main class to identify name and version of the software tool used to create the material declaration (if used).
Changes to the Developer’s Table
- Items 2 and 3 under XML Schema also required changes to the Developer’s Table;
- Country information in the material declaration is constrained to use the ISO-3166 standard 2-character country name;
- The maximum number of characters allowed for Substance Group and Substance names was increased from 128 to 2048. Some substance names are over 200 characters in length, exceeding the previous 128 character limit;
- Mismatch between developer table and xml schema for Unique ID identity attribute
- Multiplicity of the Exemption element within the Exemptions class was changed to unbounded to match the XML schema;
- Date attributes that did not specify a date format were updated to “Date..8” for consistency
- Multiplicity of the Attachment element (ACB079 ) in the BusinessInfo class was changed to unbounded to match the XML schema;
- The string length of the “Query statement” attribute was increased from 128 characters to 2048 characters;
- The identity code for Substance element in the Material class was changed to ACB121; it was previously a duplicate.
A few other editorial changes were made to the developer’s table to improve clarity.
The updated XML Schema and developer’s table are version X4.00. Changes in the developer’s table compared to X3.00 are shown in red font.
The declarable substance list (DSL) is available for free download at http://std.iec.ch/iec62474. Entries that are new or revised may be identified by a LastRevised date of 2014-04-09 for the DSL and 2014-04-05 for the developer’s table.
Information on previous updates to the IEC 62474 database is available here.
For further information on IEC 62474 or for support on your substance management program, please contact ECD Compliance.