Substance Regulatory Obligations
2,[?]-Naphthalenedisulfonic acid, 4-[[4-[(4-amino-1-naphthalenyl)azo]-1-naphthalenyl]azo]-, disodium salt
Regulatory obligations may exist for this substance under the legislations under ECHA’s remit or for which ECHA has delegated tasks (i.e. REACH, CLP, BPR, PIC, CAD / CMD, WFD, and POPs). Please check the substance Infocard.
This list contains substances assigned a binding OEL by the EU. National OELs for these substances may not deviate from the limits in the directive. Annex III contains a list of prohibited substances and their concentration limit values in percent by weight.
Salts of Benzidine
0.1 % w/w
1 The production, manufacture or use at work of this chemical agent and any activities involving this chemical agent, as set out Annex III to Directive 98/24/EC, are prohibited. The prohibition does not apply if the chemical agent is present in another chemical agent, or as a constituent of waste, provided that its individual concentration therein is less than the limit specified in Annex III.