OKRO Professional Firestopping Inspection Service

Comprehensive compliance with international and national standards to ensure building safety. OKRO provides independent third-party firestopping inspection services per ASTM E2174, E2393 and GB standards, issuing reports bearing the ILAC international recognition mark.

In modern buildings, firestopping is a critical component of the passive fire protection system. When pipes, cable trays, or ductwork penetrate fire-rated walls or floor assemblies, these penetration points—if left unsealed or improperly sealed—become pathways for fire and smoke to spread, posing serious threats to life safety and structural integrity. Shanghai OKRO Construction Technology Co., Ltd. (OKRO) is an independent third-party inspection body dedicated to providing firestopping inspection services that comply with both international and national standards.

Service Basis: Dual International and National Standards

OKRO's firestopping inspection services are conducted strictly in accordance with the following standards, ensuring that inspection findings carry international validity and legal recognition:

• ASTM E2174 – Standard Practice for Inspection of Installed Firestopping Systems
• ASTM E2393 – Standard Practice for On-Site Inspection of Installed Fire Resistive Joint Systems
• GB 50016 – Code for Fire Protection Design of Buildings (China mandatory standard)
• GB 51251 – Technical Standard for Smoke Control and Exhaust Systems

ILAC International Recognition: Globally Valid Reports

OKRO holds ISO/IEC 17020 Type A inspection body accreditation issued by IAS (International Accreditation Service), and through the ILAC (International Laboratory Accreditation Cooperation) MRA mutual recognition agreement, OKRO's inspection reports are recognized in over 60 countries and regions worldwide. This means OKRO's reports satisfy not only Chinese regulatory requirements but are also accepted by international insurers, FM Global, and multinational corporate compliance teams.

Independent, impartial, and traceable — these are the core values embodied in every OKRO inspection report.

Scope of Inspection Services

OKRO's firestopping inspection services cover the full project lifecycle: document review during design, installation witnessing and process inspection during construction, and completion verification with formal report issuance at handover. Inspectors examine each penetration point individually, recording the brand, model, installation thickness, and compliance with UL or FM-certified system requirements, and issue formal inspection reports backed by photographic evidence and data.

Applicable Scenarios

OKRO's firestopping inspection services are widely applicable to semiconductor fabs, data centers, biopharmaceutical facilities, high-end commercial complexes, hospitals, and airports — facilities with stringent fire compliance requirements. Whether for new construction handover or periodic re-inspection of existing buildings, OKRO provides professional, independent, and trustworthy third-party inspection services.

For more information about OKRO's firestopping inspection services, or to request a customized inspection plan for your project, please contact us through the official website.