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The Proof Behind Our Inspections, Not Just Our Marketing
The standards our inspections follow, the labs we send testing to, and how our inspectors are paid.
Salaried Inspectors
Set by:
TruMark QC (our own policy)
What it covers:
How inspectors are paid
What it means for you:
Our inspectors are salaried — our own policy, not a certificate. Nothing they earn is linked to volume, or to whether a lot passes or fails.
ISO/IEC 17020 Methodology
Published by:
ISO / IEC (international standard)
What it covers:
Inspection body methodology
What it means for you:
Our methodology and impartiality controls follow this standard. We are not an accredited inspection body and have not been assessed against it.
CNAS Partner Labs
Issued by:
China National Accreditation Service (CNAS)
What it verifies:
Laboratory testing competence
What it means for you:
Lab testing we coordinate is performed by CNAS-accredited laboratories, so results are recognised internationally.
Accredited Lab Partner Network
Issued by:
CNAS / ISO 17025-accredited third-party laboratories
What it verifies:
Coordinated lab testing through independent accredited partner labs
What it means for you:
We do not operate our own testing laboratory. Instead, we coordinate testing through CNAS / ISO 17025-accredited third-party labs. The partner lab — not TruMark QC — performs the testing and issues the official certificate or test report, which is recognised worldwide.
AQL to ISO 2859-1
Issued by:
ISO (international standard)
What it verifies:
Acceptance sampling method
What it means for you:
Sample sizes and accept/reject numbers come from published ISO 2859-1 tables, not our judgement — you can check the plan we used.
What This Means for You
Your inspection reports are backed by internationally recognized methodologies
Lab test results from our partner labs are issued by CNAS / ISO 17025-accredited facilities and recognised where the receiving authority accepts that accreditation
Our inspectors are salaried, so nothing they earn moves when a lot passes or fails
You can show a buyer the sampling plan we used and check it against the ISO 2859-1 tables
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Inspectors in 38 cities
ISO 17020 methodology
CNAS-accredited partner labs
Money-back commitment
ISO 17020 methodologyCNAS-accredited partner labsMoney-back commitment© 2026 Huizhou Bolang Technology Co., Ltd. All rights reserved.
TruMark QC is a brand of Huizhou Bolang Technology Co., Ltd. (USCC 91441381MACXR9203L), Room 05-06, 9/F, Zhongrun Da Building, No. 8 Science and Technology Road, West District, Daya Bay, Huiyang District, Huizhou, Guangdong 516083, China.