ISO/IEC 17025 Calibration (JCSS)
ISO/IEC 17025 Calibration (JCSS)
After standard calibration, we perform calibration based on ISO/IEC 17025.
Hioki Headquarters is an international MRA-compliant, JCSS-accredited calibration service provider that meets ISO/IEC 17025 requirements.A JCSS calibration certificate bearing the JCSS symbol, compliant with the international MRA framework,is issued as internationally recognized proof of calibration.
Supported products
Please contact us to confirm whether your product is eligible. Calibration is available within the scope of JCSS accreditation.
JCSS calibration and international MRAs
JCSS is a registration program designed to ensure that calibration service providers possess the technological skills needed to perform calibration that complies with measurement-related laws and the requirements imposed by ISO/IEC 17025.
Registered service providers are entitled to perform JCSS calibration and issue calibration certificates bearing the JCSS symbol mark. Such certificates serve as evidence of the calibration service provider’s technological skills and traceability. JCSS calibration service providers who have been certified as international MRA-compliant can issue calibration certificates bearing the ILAC-MRA and IA Japan symbol marks. Such certificates can be used as official documents whose validity is recognized worldwide.
International MRAs
An MRA is a mutual recognition agreement. IA Japan belongs to ILAC and APAC which includes NVLAP, A2LA, UKAS, DAkkS, and NATA. Calibration certificates issued by calibration service providers that have been certified as MRA-compliant by IA Japan are treated as equivalent to calibration certificates recognized by member certification entities in member countries.
![[MRA: Mutual Recognition Agreement] JCSS (Japan: IA Japan) → UKAS (UK) / DAkkS (Germany) / NATA (Australia) / NVLAP, A2LA (U.S.A.) | ILAC [UKAS (UK) / DAkkS (Germany) / JCSS (Japan: IA Japan) / NATA (Australia) / NVLAP, A2LA (U.S.A.)], EA [UKAS (UK) / DAkkS (Germany)], SADCA, APAC [JCSS (Japan: IA Japan) / NATA (Australia) / NVLAP, A2LA (U.S.A.)], IAAC [NVLAP, A2LA (U.S.A.)]](/system/files/image/2025-10/_img_calibration_MRA_2408.jpg )
ILAC: International Laboratory Accreditation Cooperation
APAC: Asia Pacific Accreditation Cooperation
IAAC: Interamerican Accreditation Cooperation
EA: European Cooperation for Accreditation
SADCA: Southern African Development Community Accreditation
When is JCSS necessary?
JCSS calibration is the solution when you need calibration that includes inaccuracy data, for example ISO/IEC 17025 calibration, ILAC calibration, MRA calibration, or IATF 16949 calibration.
Specific examples:
- Calibration of instruments used by automobile (or motorcycle) manufacturers and part suppliers
- Calibration of instruments used in UL product certification
- Calibration of instruments as required by Japanese law (for radiation therapy) or ministerial ordinance (for pharmaceuticals and quasi-drugs)
Difference between ISO/IEC 17025 calibration (JCSS) and general calibration
Differences in calibration points
- General calibration
- Calibration is performed for all parameters that need to be checked in order to maintain the performance of the measuring instrument as determined by the product designer.
- ISO/IEC 17025 calibration (JCSS)
- Calibration is performed using points registered as the JCSS calibration range and selected by the customer.
Differences in information on calibration documents
- General calibration
- Calibration results:Included on inspection report
- Inaccuracies:Not included
- Traceability chart:Yes
- ISO/IEC 17025 calibration (JCSS)
- Calibration results:Included on calibration certificate
- Inaccuracies:Included on calibration certificate
- Traceability chart:No (JCSS and other logos certify traceability.)