Reduction of Hazardous Chemical Substances

In-keeping with the provision of environmentally friendly products, the CITIZEN Groupcontinues to implement initiatives aimed at eliminating, reducing or replacing hazardous chemical substances during production processes, both at home and overseas.

Reduction of Usage of Hazardous Chemical Substances

The CITIZEN Group hadworked to reduce use of chlorinated organic compounds and hydro-chlorofluorocarbons, and completely eliminated the use in 2008.
The scope of substances subject to the PRTR Act was expanded substantially in 2010, and we have strived to reduce the use of these substances. The use of substances subject to the PRTR Act* by the CITIZEN Group in FY2016hasbeen set forth below.
We use substantial amounts of 1-bromopropane to clean parts, and ferric chloride is used to condense sludge during wastewater processing at productionsites. Methylnaphthalene and 1,2,4-trimethylbenzene are included in heavy oil and kerosene used for heating. We have continue to work to reduce the use of these chemicals through collaborative efforts ofproduction divisions and business facility management divisions.
The amount handled increased due to a rise in production volume in FY2016, and we aim to reduce the amount in FY2018 by 36% compared to that of FY2012 setting as standards. Having decided on targeting the substantial amounts of 1-bromopropane used and ferric chloride, we will strengthen our reduction efforts.

TheHandled/Generated/TransferredAmount of Substances Subject to the PRTR Act (FY 2016)

TheHandled/Generated/TransferredAmount of Substances Subject to the PRTR Act (FY 2016)

Chemical Substances Subject to the PRTR Act

Chemical Substances Subject to the PRTR Act

-Example Initiative CITIZEN YUBARI

Initiative to reduce the amount of chemical substances subject to PRTR

  • (1) Abolishment of ferric chloride
    Due to renewal of wastewater treatment facilities, we have moved ahead with the endeavor to switch from ferric chloride, which is being used to condense sludge, to polyferric sulfate (not subject to PRTR). As a result of repeated process changes and wastewater analysis during test runs, we have succeeded in operating under the same processing capacity as before. After the activation of the new wastewater treatment facility (from October 2016), we completely ceased to use ferric chloride.
  • (2) Replacement of cleaning solvent
    We promoted replacing the cleaning solvent substance being used to remove oil from component surfaces with an n-hexane solvent not subject to PRTR. Although a defect such as inferior external appearance of a component after cleaning occurred due to a disparity in volatility, we improved the drying conditions and successfully made the substitution.

Example Initiative Kitakami Works,CITIZENMACHINERY

Initiatives for Using Less Chemical Substances

At CITIZENMACHINERY’S Kitakami Works, we accept contracts for coating work. Due to our purchase and usage of organic solvents, we work to obtain and check the contents of the latest SDSs ot assess the risks of included chemicals andunderstandtheir dangerous and hazardous effects and the necessity of protective gear, and at the same time make efforts to choose solvents that avoid those risks.

<< Procedure for Dealing with Chemicals >>

  • 1) Obtain SDSs, check applicable laws, and confirmhazardousness and emergency measures by using the GHS.Check ingredient information withCASNo.
  • 2) Assess the risks of included chemicals with CAS No.
  • 3) Post the latest SDSs at production site, and train the workers who actually use the chemicals regarding their hazardousness, dangerous effects, and handling procedures.

*Additionally, when purchasing organic solvents, we make every effort to switch to products that do not contain highly dangerous substances such as specified chemical substances

Coating work inside a booth
Coating work inside a booth