Pest Control Activities for Quality Assurance

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Contamination control-not only insect contaminant is one of the important activities for quality assurance (QA) of the product and it should be based on the preventive approach. In order to realize the effective prevention of insect contamination in the factories, we must establish the comprehensive system including hardware, software. and human-ware, which can solve the basic cause of contamination.We have been introduced the tailor-made comprehensive system against contamination to the wide variety of customer factories, which we call THC (Total Health Care) system. The framework of our THC system is as follows. After the annual program, we grasp an inadequacy by periodical on-site surveillance including visual inspection, sampling, monitoring. etc. Then we analyze the results of surveillance using statistical methods to decide the optimal action plan solving problems both existing and potential. The short-term action plan, which basically consists of hardware, software, and human-ware, is examined by the group discussion among factory member and us. Once the plan is accepted, we make it clear that whose responsibility, when/by when and where to execute, how to proceed, and why in order to make sure the plan into execution. After verification of execution, we validate the effectiveness of the plan by the close examination using statistical method. If theplan is ineffective, we refine the plan or adopt the alternative one. At least twice a year, we review and validate the annual program by the general statistical analysis because we must make the annual program more effective for the successive year. Continuous improvement of the comprehensive system can make the contamination control more and more effective year by year and our THC system enables it. In this paper we will explain the concept and procedure of our system in detail.