Workshop Exposure Scenarios. Workshop Exposure Scenarios. 21 October 2011

Transcription

1 Workshop Exposure Scenarios 21 October

2 Disclaimer This information does not constitute legal advice but is intended for guidance only. While the information is provided in utmost good faith and has been based on the best information currently available, it is to be relied upon at the user s own risk. No representations or warranties are made with regard to its completeness or accuracy, and no liability will be incurred for damages of any nature whatsoever resulting from the use of or reliance on the information. 1

3 Identify your Use in the ES Use Descriptors System E R i? A Map your Uses Identify most suitable ES CH Identify obvious mismatches PROC Hierarchy 2

4 Use Descriptor System Indicator Rules SU Sector of Use Where the substance is used Industrial, professional, and/or Consumer and eventual supplementary sectors of end-use PC Product Category Type of product the substance is used in Preparations/mixtures (by market sector) PROC Process Category How the substance is used Application techniques or process types for industrial and professional use AC Article Category Type of article the substance is used in Article type in service life and waste life for consumers and workers ERC Environmental Release Category How the substance is released in environment Conditions of use from environmental perspective For further information on use descriptors please refer to ECHA document Guidance on Information Requirements Part D-3 and D-4 Link: 3

5 Describe your own Use with Use Descriptors: step 1 Select appropriate sector of use Choose among the following mandatory descriptors: SU3: industrial uses (e.g. bleaching chemical in paper industry) SU21: private household uses (e.g. painting the wall as a private person) SU22: professional uses (e.g. painting house on commercial basis) Supplementary descriptors for Sectors of end use may be added 4

6 Describe your own Use with Use Descriptors: step 2 According to your SU selection assign additional descriptors, applying the following rules: [SU3] Industrial use: assign at least process category (PROC) and environmental release category (ERC) [SU22] - Professional use (worker s end-use): assign at least process category (PROC) and environmental release category (ERC) [SU21] - Consumer end-use: assign product category (PC) or article category (AC) and environmental release category (ERC) 5

7 Map your uses Workshop Exposure Scenarios 6

8 Input parameters for calculation of Safe Use 7

9 Downstream User compliance check Step 1: Identify your Use in the Exposure Scenario (ES) Select ES which (closest) matches your own situation Compare your use(s) with the Short Title and the Use Descriptors given in the first section of the ES Step 2: Check Operational Conditions (OC) and Risk Management Measures (RMM) Compare OC and RMM described in selected ES with your own situation NOTE: Step 2 is not part of this presentation, however it is an essential step to ensure Safe Use 8

10 Identifying your Use in the Exposure Scenario Start with ES from your main supplier Select ES which (closest) matches your own situation, via table of content when this is provided Compare your own use(s) with the Short Title and the Use Descriptors given in the first section of the selected Exposure Scenario Find identical ES from each supplier of a given substance: same OC and RMM (not part of this presentation) Compare described uses from identical ES from different suppliers 9

11 Example of table of content ES no ES Short title / Identified use Main user group Supplementary Product Category Process category Environ mental category Article category 1 Manufacture SU3 SU8, SU9 PROC1, 2, 3, 4, 8a, 8b, 15 ERC1-2 Distribution SU3 SU10 PROC1, 2, 3, 4, 5, 8a, 8b, 9, 15 ERC2-3 Formulation SU3 SU10 PROC1, 2, 3, 4, 5, 8a, 8b, 9, 14, 15 ERC2-4 Coatings SU3 - PC9a PROC1, 2, 3, 4, 5, 7, 8a, 8b, 9, 10, 13, 15 ERC5 - PROC1, 2, 3, 4, 5, 8a, 8b, 10, 11, 13, 15, 5 Coatings SU22 - PC9a 19 ERC8c, 8f - 6 Coatings SU21 - PC9a - ERC8c, 8f - 8 Cleaning agent SU22 - PC35 PROC1, 2, 3, 4, 8a, 8b, 10, 11, 13 ERC8a, 8d - 9 Cleaning agent SU21 - PC35 - ERC8a, 8d - n nn Isolation articles SU ERC11b AC4 10

12 Select Sector of Use 11

13 ES is structured into 4 sections Sections of the Exposure Scenario 1. Titel of Exposure scenario 2. Operational conditions and risk management measures Contributing scenario controlling environmental exposure for.. Contributing scenario controlling worker exposure for.. 3. Exposure estimation and references to its source 4. Guidance to Downstream users wheather he works inside the bounderies set by ES Additional good practice advice beyond the REACH CSA 12

14 Section 1 of the ES 13

15 Short Title examples Manufacture of substance Distribution of substance Formulation & (re)packing of substances and mixtures Uses in Coatings Use in Cleaning Agents Use in Oil and Gas field drilling and production operations Lubricants Metal working fluids / rolling oils Use as binders and release agents Use as a fuel Functional Fluids Use in laboratories Water treatment chemicals Mining chemicals 14

16 One ES can cover several steps One ES can cover all process steps at distributor / formulator site and contains: Contributing scenario (1) for environmental exposure from the site - and for the individual process steps - Contributing scenario (2) for exposure of worker at closed batch mixing process (PROC3)... Contributing scenario (3) for exposure of worker at laboratory control (PROC15)... Contributing scenario (n) for exposure of worker at filling process (PROC 9) Contributing scenario (nn) for exposure of worker at nn process 15

17 Obvious mismatches - Missing PROC 8a, 8b and 9 (Transfer) - Missing formulation stage - General experience: Use Descriptor system is widely used and provides a good first indicator 16

18 PROC Hierarchy Workshop Exposure Scenarios Page 19: Indication of which PROCs may be covered by other PROCs. 17

19 PROC Hierarchy Workshop Exposure Scenarios Example 1: If PROC 19 is safe for the industrial use of a medium volatile liquid for 1-4 hours as pure substance with no Respiratory Protective Equipment but with LEV then PROC 10 and PROC 13 are also safe for exactly the same set of conditions:. PROC Type of setting Duration of activity per day Use of ventilation? Efficiency of respiratory protection (%) PROC 19 industrial 1-4 hours Indoors with LEV 90% 14,32 PROC 10 industrial 1-4 hours Indoors with LEV 90% 1,55 PROC 13 industrial 1-4 hours Indoors with LEV 90% 0,86 PROC 19 industrial 1-4 hours Indoors with LEV 90% 14,32 PROC 10 industrial 1-4 hours Indoors with LEV 90% 1,55 PROC 13 industrial 1-4 hours Indoors without LEV 90% 15,50 assumed vapour pressure of liquid: 5000 Pa Total Exposure (mg/kg/day) 18

20 PROC Hierarchy Workshop Exposure Scenarios Example 2: If PROC 6 is safe for a given set of conditions then PROC 14 and PROC 12 are also safe for the same set of conditions. PROC Type of setting Duration of activity per day Use of ventilation? Efficiency of respiratory protection (%) Total Exposure (mg/kg/day) PROC 6 industrial 1-4 hours Indoors with LEV 90% 1,55 PROC 14 industrial 1-4 hours Indoors with LEV 90% 0,52 PROC 12 industrial 1-4 hours Indoors with LEV 90% 0,18 PROC 6 industrial 1-4 hours Indoors with LEV 90% 1,55 PROC 14 industrial 1-4 hours Indoors without LEV 90% 5,21 PROC 12 industrial 1-4 hours Indoors with LEV 90% 0,18 assumed vapour pressure of liquid: 5000 Pa 19