OKRO Obtains ILAC Airtightness Testing Inspection Accreditation
CertificationOctober 2025

OKRO Obtains ILAC Airtightness Testing Inspection Accreditation

ILAC AccreditationAirtightness TestingGas SuppressionBuilding Envelope

Multi-scenario applications elevate building quality and compliance standards. OKRO has formally obtained airtightness testing inspection capability under the ILAC international mutual recognition framework, covering gas suppression system verification, building envelope airtightness, and cleanroom testing.

OKRO's airtightness testing inspection capability recognized by ILAC
OKRO's airtightness testing inspection capability recognized by ILAC

Shanghai OKRO Construction Technology Co., Ltd. officially announces that the company has obtained airtightness testing inspection capability accreditation under the ILAC (International Laboratory Accreditation Cooperation) international mutual recognition framework. The acquisition of this accreditation marks a further expansion of OKRO's professional capabilities in the field of building safety inspection, enabling the company to provide professional services covering three core application scenarios: gas suppression system verification, building envelope airtightness testing, and cleanroom airtightness testing.

The Importance of Airtightness Testing

Airtightness is one of the key indicators of building performance, directly affecting energy consumption, indoor air quality, and fire safety. In gas suppression systems, the airtightness of the protected space determines whether the suppression agent can maintain effective concentration for the required duration. In building envelopes, airtightness affects thermal performance and energy consumption levels. In cleanrooms, airtightness is the fundamental condition for maintaining cleanliness levels and preventing contamination.

Three Core Application Scenarios

OKRO's airtightness testing inspection services cover three core application scenarios: first, gas suppression system protected area airtightness verification — using Door Fan Test in accordance with NFPA 2001, ISO 14520, and other standards to verify protected area airtightness, calculate suppression agent hold time, and ensure gas suppression system effectiveness; second, building envelope airtightness testing — testing the airtightness of building facades, roofs, and other envelope components in accordance with relevant building energy efficiency standards, providing data support for green building certification and energy consumption assessment; third, cleanroom airtightness testing — professional airtightness testing for semiconductor, biopharmaceutical, and other high-cleanliness facilities to ensure cleanroom sealing performance meets design requirements.

Door Fan Test airtightness testing field operation
Door Fan Test airtightness testing field operation

Global Validity of ILAC Accreditation

Through the ILAC MRA mutual recognition agreement, OKRO's airtightness testing inspection reports are recognized in over 60 countries and regions worldwide, and can be directly accepted by local regulators and business partners in target countries without re-accreditation. For multinational companies operating in China, this means a single report can simultaneously satisfy compliance requirements from both Chinese and overseas headquarters.

Airtightness is not just a number — it is a comprehensive reflection of building performance and safety. OKRO's ILAC-accredited inspection gives this number international credibility.

OKRO will continue to invest in professional capability development, providing clients with professional services covering the full spectrum of building safety inspection, and helping to comprehensively elevate the international compliance standards of China's construction industry.

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OKRO provides independent third-party firestopping inspection (ASTM E2174 / E2393) and gas suppression system integrity testing (NFPA 2001 / ASTM E3038). IAS-accredited ISO/IEC 17020 Type A inspection body, ILAC-MRA recognized.

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OKRO Construction Technology · IAS Accredited · ILAC-MRA Recognized