Post on 20-Apr-2018
Bara Chemical Co., Ltd.
GPS Workshop, ThailandMay 26,2015
Risk Assessment and Management of Workplace
[Session 5]
Establishment : 1973 March Registered Capital : 60 MBaht Shareholders : Sumitomo Chemical 55%
Bara Windsor 45% Factory Area : 28,000㎡ No. of Employees : 140 persons
(Japanese 4 persons) Address : Bangpoo, Samutprakarn,
Thailand
Bara Chemical Co., Ltd.
AUTOMOBILE and TIRE & RUBBER MANAGEMENT SYSTEM
– Rubber Adhesive for Automobile Tire– Acrylic Emulsion for Car Sheet– Primary Paint for Car Bumper
– ISO 9001– ISO 14001– OHSAS 18001
Product & Management System Overview
TEXTILE
PAPER
ELECTRONIC
OTHER
– Textile Finishing Resins
– Printability Improving Resin– Wet Strengthen Resin
– Epoxy compound– Epoxy Resin for LED lamp
– Instant Glue– Corrosion InhibitorPLASTIC ADDITIVE
– Plastic Additives
What is Bara Chemical ?
Consolidated Subsidiary of Energy and Specialty Chemicals Sector,
Sumitomo Chemical (SCC).
Production Site of fine Chemical Products of SCC and SCC group.
Regional Technical Service Base of Dyestuff Business of
Sumitomo Chemical in South East Asian market.
Bara Chemical Co., Ltd.“To maintain the good hygienic of
the production staffs”
Chemical Risk Assessment
(Health Hazard Prevention)
Introduction
Since September 2012 the Bara Chemical has been certified OHSAS 18001 (Occupational Health and Safety Management System), risk management was based on general prevention not specific for hazardous prevention.JISHA’s Chemical Risk Assessment Method for Health Hazard Prevention which was introduced to Thailand by HIDA (The Overseas Human Resources and Industry Development Association) and JCIA (Japan Chemical Industry Association) started to implement in Bara Chemical process.
What’s JISHA's Chemicals RA Program Guide (Health Hazard Prevention)
The Japan Industrial Safety and Health Association (JISHA) issued a
manual entitled JISHA's Chemical RA Program Guide (Health Hazard
Prevention) for the investigate of the hazardous nature of chemical substances).
Steps 1 to 4, 9, and 10 of this manual are similar to those specified for standard
risk assessment.
Steps 5 to 8 are specific to the risk assessment of chemical substances, and
contain consideration of hazard evaluation and measures for the prevention of
exposure to hazardous chemical substances.
JISHA's Chemicals RA Program Guide ; Risk Assessment Flow Chart
Step 1: Assign the risk assessor
Step 2: Divide manufacturing/handling processes/workplaces into units to implement RA
Step 3: Make an inventory of chemicals used. Obtain info. on workplaces/processes
Step 4: Identify workers engaged in the RA target workplaces
Step 5: Gather and evaluate the hazard
data, etc. (Hazard assessment)
RA goals, sites, and scope
Identify chemicals manufactured/handled
Identify target workers
Step 6: Gather and evaluate the exposure
data. (Exposure assessment)
- Identify the hazard data (GHS classifications, OELs: Occupational Exposure Limits, BEI, etc.)- Identify the hazard level (HL)
Step 7: Risk characterization
Step 8: Develop the Risk control measures
to prevent/reduce exposure
Identify the exposure level
Identify the
risk level (RL)
Step 9: Identify RMMs*, implement them, and document the outcomes
Step 10: Reassessment
Risk-level-relevant risk control measures
*) RMMs: Risk Management Measures
PDCA cycle (plan-do-check-act cycle)
Risk Level (RL) V = Intolerable riskRisk Level (RL) IV = High riskRisk Level (RL) III = Medium riskRisk Level (RL) II = Allowable riskRisk Level (RL) I = Minor riskRisk Level (RL) S = Risk to eyes and skin
Step 5: Gather and evaluate the hazard data, etc. (Hazard assessment)
Hazard assessment level (HL) must be considered the impact of carcinogenicity
that classified in category 1A, 1B, 2
Step 6 - 7: Exposure Assessment and Risk Characterization
Yes Yes Yes No
(Table1)Risk characterization table for EL1, EL2, EL3 (Table2)Risk characterization table for EL4
HL from STEP 5
STEP
6ST
EP 7Measureddata
available?
Option 1 Av : Working
Environment data.
Option 2Av : Personalsampler data.
Option 3Av : Biological
monitoring data.
Option 4No data Available.
Working Environmentconcentration Level (WL)
&Working Time Level (FL)
Exposure Level : EL 4
Estimated Working Environment
concentration Level (EWL)&
Working Time Level (FL)
ELHL
V V IV III II
V IV III III II
IV IV III II II
IV III III II I
IV III III II I
4 3 2 1
5
4
3
2
1
5 ELHL
V V IV IV IIIV IV IV III IIIIV IV III III IIIV III III II IIIV III III II I
21
3 2 1
543
5 4
Exposure Level : EL 1 Exposure Level : EL 2 Exposure Level : EL 3
Risk Level (RL) V = Intolerable risk
Risk Level (RL) IV = High risk
Risk Level (RL) III = Medium risk
Risk Level (RL) II = Allowable risk
Risk Level (RL) I = Minor risk
Risk Level (RL) S = Risk to eyes and skin
Bara Chemical Step wise
Step 1 – 3 Divide the manufacturing process to implement Risk Assessment Step 4 Describe the chemical used, chemical released and Priority by GHS
classification consider on health hazard firstStep 5 Gather and evaluate the hazard data (Hazard Assessment)Step 6 Identify the exposure level (Exposure Assessment)Step 7 Risk CharacterizationStep 8 Develop the Risk control measures to prevent/reduce exposureStep 9 Identify risk management measure, Implementation and document
the outcomeStep 10 Reassessment
Source of information;Speaker Mr. Jun Yamaguchi, HIDA Expert (The 1st Seminar on Chemical Risk Assessment Method)
Manufacturing Process for Chemical Risk Assessment
Hazard DataFormaldehyde (ACGIH) Threshold Limit Value (TLV) (2007) = 0.37 mg/m3
Manufacturing process of Melamine Resin
- Material - a- Material - b- Material - c- Material - d- Material - e
Reflux &
Vacuum condensation
Cycle time of 1 Batch size
Working time = 12 hrs/shift/operator
Break = 3 hrs/shift/operator
Manufacturing Process for Chemical Risk Assessment
FF
FF = 0.057 mg/m3
< 0.001 mg/m3
Melamine Resin: Carcinogenicity 3Formaldehyde vapor: Carcinogenicity 1A
Inventory of chemical used and prioritization by GHS
Hazard Assessment (HL)
Chemical GHS HLComponent Classification (Hazard Level)
Melamine ResinCarcinogenicity
1A 5
Formaldehyde vapor
Carcinogenicity 1A 5
Refer to JISHA’s Guide: Table 1-1 Hazard Level
Exposure Assessment and Risk Characterization
Wet scrubber for dust & vapor collector and treatment unit.
Workplace control measures
Facilities to control formaldehyde vapor, Mixing tank
Closed system for vapor control to collect Formaldehyde vapor to scrubber
Facilities to control formaldehyde vapor, Vacuum pump
Workplace control measures
Although, even if the control system and the measuring chemicals in the atmosphere are not over than standard, the PPE is still necessary to minimize the effect to the operator.
Workplace control measures
1. Educate the operators about Health Hazards of formaldehyde exposure.
2. Provide an appropriate personal protective equipment (PPE). Ensure that the staffs always use PPE such as impervious clothing, gloves, aprons, and chemical splash goggles to prevent skin and eye contact with formaldehyde.
3. Conduct annual medical check up and report abnormalities immediately
Standard, Training and Health check investigation