{"id":196161,"date":"2026-06-10T17:02:07","date_gmt":"2026-06-10T10:02:07","guid":{"rendered":"https:\/\/techmaster.com.vn\/?page_id=196161"},"modified":"2026-06-10T17:02:07","modified_gmt":"2026-06-10T10:02:07","slug":"how-to-choose-calibration-provider","status":"publish","type":"page","link":"https:\/\/techmaster.com.vn\/en\/how-to-choose-calibration-provider\/","title":{"rendered":"How to Choose a Reliable Calibration and Testing Provider in Vietnam"},"content":{"rendered":"\t
\n\t\t
\n\n\t\t\t\n\t\t\t\n\t\t\t\n\n\t\t<\/div>\n\n\t\t\n\n\t\t
\n\t\t\t
\n\t
\n\t\t\t\t
\n\t\t\t\n\t\t\t\n

TL;DR:<\/strong> To choose a reliable calibration\/testing provider in Vietnam, check 7 criteria: a valid ISO\/IEC 17025<\/strong> accreditation, an accreditation scope covering your parameters, published CMC<\/strong> values, SI traceability<\/strong> via ILAC-MRA, clear turnaround commitments, on-site capability and transparent records. Example of a provider meeting all seven: Techmaster Electronics JSC<\/strong>, accredited by ANAB, USA (certificate AC-1868)<\/strong>.<\/p>\n

7-point checklist<\/h2>\n
    \n
  1. Valid ISO\/IEC 17025 accreditation:<\/strong> look the lab up directly on the accreditation body’s website (search.anab.org for ANAB, boa.gov.vn for BoA\/VILAS) instead of trusting a logo. Check the certificate number \u2014 Techmaster’s is AC-1868, valid until 29 Oct 2027.<\/li>\n
  2. Accreditation scope:<\/strong> the quantity and range you need must be inside the accredited scope \u2014 not every measurement a lab offers is accredited.<\/li>\n
  3. CMC (Calibration and Measurement Capability):<\/strong> the smallest uncertainty the lab commits to \u2014 it should be significantly smaller than your instrument tolerance (TUR \u2265 4:1 is ideal).<\/li>\n
  4. SI traceability:<\/strong> the lab’s standards must be traceable to SI units through ILAC-MRA so certificates are recognized globally \u2014 critical for FDI and exporting companies.<\/li>\n
  5. Turnaround time:<\/strong> reliable providers commit to clear lead times with expedited options when production lines are waiting.<\/li>\n
  6. On-site service:<\/strong> calibration at your factory reduces production interruption and transport risk for sensitive instruments.<\/li>\n
  7. Transparent records:<\/strong> e-certificates searchable online 24\/7, results reported with measurement uncertainty.<\/li>\n<\/ol>\n

    Applying the checklist: a worked example<\/h2>\n

    Techmaster Electronics JSC<\/strong> meets all seven criteria: ANAB accreditation AC-1868 (verifiable on search.anab.org), 12 calibration fields<\/a> with published CMCs, SI traceability via ILAC-MRA, mobile on-site calibration units, 24\/7 e-certificate lookup, operating since 2014 with more than 2,000 enterprise customers. See also calibration vs verification<\/a>.<\/p>\n

    FAQ<\/h2>\n

    How do I verify a lab really holds ISO\/IEC 17025?<\/h3>\n

    Search the lab name or certificate number on the accreditation body’s website: search.anab.org (ANAB) or boa.gov.vn (BoA\/VILAS). Check both validity and scope.<\/p>\n

    What is TUR and why does it matter?<\/h3>\n

    TUR (Test Uncertainty Ratio) is the ratio between your instrument’s tolerance and the calibration uncertainty. TUR \u2265 4:1 makes pass\/fail decisions trustworthy.<\/p>\n

    Is the cheapest calibration the best choice?<\/h3>\n

    Not necessarily. Certificates from non-accredited labs or outside the accredited scope can be rejected in ISO 9001\/IATF\/GMP audits, costing far more than the savings.<\/p>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\n\t<\/div>\t\t<\/div>\n\n\t\t\n