Download Kein Folientitel

Workshop Exposure Scenarios
Workshop Exposure Scenarios
21 October 2011
0
Workshop Exposure Scenarios
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
Workshop Exposure Scenarios
Identify your Use in the ES
• Use Descriptors System
E
R
i?
CH
• Map your Uses
A
• Identify most suitable ES
• Identify obvious mismatches
• PROC Hierarchy
2
Workshop Exposure Scenarios
Use Descriptor System
SU
Sector of Use
PC
Product Category
PROC
Process Category
Indicator
Rules
Where the substance is used
Industrial, professional,
and/or Consumer and
eventual supplementary
sectors of end-use
Type of product the
substance is used in
How the substance is used
Article Category
Type of article the
substance is used in
Environmental
Release Category
How the substance is
released in environment
AC
ERC
Preparations/mixtures (by
market sector)
Application techniques or
process types for industrial
and professional use
Article type in service life
and waste life for
consumers and workers
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: http://guidance.echa.europa.eu/docs/guidance_document/information_requirements_r12_en.pdf?vers=20_08_08
3
Workshop Exposure Scenarios
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
Workshop Exposure Scenarios
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
Workshop Exposure Scenarios
Map your uses
6
Workshop Exposure Scenarios
Input parameters for calculation of Safe Use
7
Workshop Exposure Scenarios
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
Workshop Exposure Scenarios
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
Workshop Exposure Scenarios
Example of table of content
ES no ES Short title /
Identified use
Main Supple- Product Process
user mentary Category category
group
PROC1, 2, 3,
1 Manufacture
SU3 SU8, SU9
4, 8a, 8b, 15
2 Distribution
SU3 SU10
PROC1, 2, 3,
4, 5, 8a, 8b, 9,
15
PROC1, 2, 3,
4, 5, 8a, 8b, 9,
3 Formulation
SU3 SU10
14, 15
PROC1, 2, 3,
4, 5, 7, 8a, 8b,
4 Coatings
SU3 PC9a
9, 10, 13, 15
PROC1, 2, 3,
4, 5, 8a, 8b,
10, 11, 13, 15,
5 Coatings
SU22 PC9a
19
6 Coatings
SU21 PC9a
PROC1, 2, 3,
4, 8a, 8b, 10,
8 Cleaning agent SU22 PC35
11, 13
9 Cleaning agent SU21 PC35
n ……
……
……
……
……
nn Isolation articles SU21 -
Environ Article
mental category
category
ERC1
-
ERC2
-
ERC2
-
ERC5
-
ERC8c, 8f ERC8c, 8f -
ERC8a, 8d ERC8a, 8d ……
……
ERC11b AC4
10
Workshop Exposure Scenarios
Select Sector of Use
11
Workshop Exposure Scenarios
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
Workshop Exposure Scenarios
Section 1 of the ES
13
Workshop Exposure Scenarios
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
Workshop Exposure Scenarios
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
Workshop Exposure Scenarios
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
Workshop Exposure Scenarios
PROC Hierarchy
http://www.cefic.org/Documents/IndustrySupport/Cefic%20communication%20on%20extSDS_130711.pdf
Page 19: Indication of which PROCs may be covered by other PROCs.
17
Workshop Exposure Scenarios
PROC Hierarchy
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
Use of ventilation ?
activity per day
Efficiency of respiratory Total Exposure
protection (%)
(mg/kg/day)
PROC 19
PROC 10
PROC 13
PROC 19
PROC 10
PROC 13
industrial
industrial
industrial
industrial
industrial
industrial
1 - 4 hours
1 - 4 hours
1 - 4 hours
1 - 4 hours
1 - 4 hours
1 - 4 hours
90%
90%
90%
90%
90%
90%
Indoors
Indoors
Indoors
Indoors
Indoors
Indoors
with LEV
with LEV
with LEV
with LEV
with LEV
without LEV
14,32
1,55
0,86
14,32
1,55
15,50
assumed vapour pressure of liquid: 5000 Pa
18
Workshop Exposure Scenarios
PROC Hierarchy
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
Use of ventilation ?
activity per day
Efficiency of respiratory Total Exposure
protection (%)
(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%
PROC 12
industrial
1 - 4 hours
Indoors with LEV
90%
0,52
0,18
PROC 6
industrial
1 - 4 hours
Indoors with LEV
90%
1,55
PROC 14
industrial
1 - 4 hours
Indoors without LEV
90%
PROC 12
industrial
1 - 4 hours
Indoors with LEV
90%
5,21
0,18
assumed vapour pressure of liquid: 5000 Pa
19