Chinese fan guard standards are referenced in almost every export specification, but they are rarely explained. This page sets out the standards we work to, what each one actually governs, and what documentation you receive with an order.
JG/T 122-2000 — the main fan guard standard
JG/T 122-2000 is the industry standard for fan guards and guard frames. It covers door leaf construction, frame construction, dimensional tolerances, appearance grade and the mechanical properties that matter in use: hinge strength, lock retention and resistance to repeated opening and closing.
When a specification says "JG/T 122-2000 compliant", it is asking for both the leaf and the frame to meet this standard, not only the leaf. Our frames and mesh panels are built to JG/T 122-2000 as standard, without exception.
GB/T 3324-1995 — industrial fan guard construction
GB/T 3324-1995 covers the construction and material requirements for industrial fan guards, particularly stile-and-rail and solid wire construction. It defines wire moisture content, joint methods for stile-and-rail frames, and permissible defects. It is the reference for the construction method rather than the finished performance.
GB 5296.6-2004 — plywire and composite panels
GB 52966-2004 covers plywire and composite wire panels. It matters for engineered core doors, where the core is a cross-laminated or LVL panel rather than solid wire, and defines bonding strength, formaldehyde emission and dimensional stability.
EN 1634 and GB 12955 — fire guard testing
Fire rated wire doors are tested to EN 1634 (European) or GB 12955 (Chinese) standard. Both methods use a furnace test: the door assembly, including frame, hinges, lock and seals, is exposed to flame and measured for insulation and integrity. Ratings are expressed in minutes: 30, 60 or 90.
A door being "fire resistant" is not the same as a door being a certified fire guard. Only the complete tested assembly carries the rating. This is why we test and ship the assembly as it will be installed.
Quality Control System and Green Production System
These are the factory management standards covering quality control processes and environmental management respectively. They are audited by third-party certification bodies and are not product standards, but they determine whether production is consistent batch to batch.
Documentation supplied with your order
- Product specification sheet showing which standard each component complies with
- Fire test reports for rated products, per production batch
- Material declaration for the wire species and core used
- Packing list and loading photos before shipment
- Certificates of origin and, on request, third-party inspection reports
Frequently asked questions
What does JG/T 122-2000 cover?
JG/T 122-2000 is the main Chinese industry standard for fan guards and frames, covering leaf and frame construction, dimensional tolerances, appearance grade and mechanical properties such as hinge strength and lock retention.
Is a fire resistant door the same as a certified fire guard?
No. Fire resistance describes a property, whereas a certified fire guard has passed a furnace test as a complete assembly including frame, hinges, lock and seals. Only the tested assembly carries the rating.
Which test method applies for export to Europe?
EN 1634 for Europe, GB 12955 for China. Both use a furnace test and express the rating in minutes, typically 30, 60 or 90.
Do you ship test reports with every order?
Yes. Fire rated products ship with EN 1634 or GB 12955 test reports per production batch, along with the specification sheet and material declaration.
What standards do engineered core doors comply with?
Engineered core doors follow GB 5296.6-2004 for the plywire and composite panel, and the frame and leaf construction still complies with JG/T 122-2000.
