JATL undergoes a regular surveillance audit by the Japan Accreditation Board to maintain ISO 17025
August 2025
JATL underwent a regular surveillance audit by the Japan Accreditation Board (JAB) on July 24, 2025, to maintain its ISO 17025 certification. JATL originally acquired ISO 17025 certification in October 2004, and this was the twelfth surveillance audit. The audit was completed with no nonconformities or findings against the requirements of ISO 17025.
Since JATL acquired its license in 2004, air conditioning equipment on the market has become more energy-efficient and higher in capacity. Today, residential air conditioners (RACs) offer cooling capacities of up to 9kW (approximately 10kW in heating capacity). However, JATL’s certified testing range for cooling capacity was still up to 7.1kW, so it needed to be expanded to 10kW.
To address this, JATL requested several manufacturers to conduct proficiency tests by comparing results from their laboratories. These tests have been completed, and the results were approved by JAB. As a result, the expanded testing range up to 10kW has been officially certified.