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Systemanalytikerin & Gefahrstoffrecht Your ref. 17.04.2023 / [email protected] Our ref. 22.05.2023 No 1.5-1.1/1852-2 Limit value of hazardous substance Dear Eva Gloria Villarreal y López Thank You for Your letter, we apologize for delayed response! You were wondering whether the limit value set for 8-hour exposure for 2,2'-iminodiethanol; diethanolamine (CAS nr. 111-42-2) is either 5 or 15 mg/m3. We have reviewed valid and previously valid versions of appendix I of legal act “Occupational health and safety requirements for the use of hazardous chemicals and materials containing them and limit values for chemical hazard factors in the working environment”. We must admit that it seems to be a typographical mistake. There is no evidence in explanatory notes, that the limit value for 2,2'-iminodiethanol; diethanolamine (CAS nr. 111-42-2) should have changed. We will make amendments to annex I, but it may take some time. Til the amendments are done and entered into force, the employer may follow limit value of 15 mg/m3 for 8-hour exposure for hazardous substance of 2,2'-iminodiethanol; diethanolamine (CAS nr. 111-42- 2). We will inform National Labour Inspectorate about the situation. Therefore, in case of inspection, the inspectorate is aware of the difference between the limit value set in appendix I and the limit value that is allowed to be followed. Thank you for bringing this issue into our attention! Best regards, Seili Suder Head of Department of Labor Relations and Working Environment Dana Kadanik +372 [email protected] Suur-Ameerika 1 / 10122 Tallinn / ESTONIA / +372 626 9301 / [email protected] / www.sm.ee / Reg. no 70001952 Systemanalytikerin & Gefahrstoffrecht Your ref. 17.04.2023 / [email protected] Our ref. 22.05.2023 No 1.5-1.1/1852-2 Limit value of hazardous substance Dear Eva Gloria Villarreal y López Thank You for Your letter, we apologize for delayed response! You were wondering whether the limit value set for 8-hour exposure for 2,2'-iminodiethanol; diethanolamine (CAS nr. 111-42-2) is either 5 or 15 mg/m3. We have reviewed valid and previously valid versions of appendix I of legal act “Occupational health and safety requirements for the use of hazardous chemicals and materials containing them and limit values for chemical hazard factors in the working environment”. We must admit that it seems to be a typographical mistake. There is no evidence in explanatory notes, that the limit value for 2,2'-iminodiethanol; diethanolamine (CAS nr. 111-42-2) should have changed. We will make amendments to annex I, but it may take some time. Til the amendments are done and entered into force, the employer may follow limit value of 15 mg/m3 for 8-hour exposure for hazardous substance of 2,2'-iminodiethanol; diethanolamine (CAS nr. 111-42- 2). We will inform National Labour Inspectorate about the situation. Therefore, in case of inspection, the inspectorate is aware of the difference between the limit value set in appendix I and the limit value that is allowed to be followed. Thank you for bringing this issue into our attention! Best regards, Seili Suder Head of Department of Labor Relations and Working Environment Dana Kadanik +372 [email protected] Suur-Ameerika 1 / 10122 Tallinn / ESTONIA / +372 626 9301 / [email protected] / www.sm.ee / Reg. no 70001952