GB/T 7106
The national test method for external windows and doors: air permeability, watertightness and wind-load resistance, each graded from 1 to 9.
- Air permeability · grade
- Watertightness · grade
- Wind-load resistance · grade
Every Neisen configuration is tested for air, water and wind-load performance to the standard of its market, and the report travels with the project.
The same system is tested to the method of the market it is sold into. The three cover China, Europe and North America.
The national test method for external windows and doors: air permeability, watertightness and wind-load resistance, each graded from 1 to 9.
The European product standard behind CE marking: air permeability to EN 1026, watertightness to EN 1027 and resistance to wind load to EN 12211, with thermal transmittance declared.
The North American Fenestration Standard (AAMA / WDMA / CSA 101 / I.S.2 / A440): a Performance Grade and Design Pressure for the whole assembly, tested for air, water and structural load; the basis of U.S. and Canadian specifications.
Accredited testing and certification; NAFS and EN test programmes.

National Accreditation & Management Institute: product certification for the North American market.

National Fenestration Rating Council: energy ratings — U-factor, solar heat gain, visible transmittance.

China Certification & Inspection Group: inspection and certification for export shipments.
Quality, environmental and occupational health and safety management systems certified at Zhejiang Baoye Curtain Wall, the company that engineers and manufactures Neisen.
Certificates and company honoursPerformance depends on size, glazing and operation, so we state it per configuration rather than as one number for the series.
Sizes, operation types, glazing and the market the project is in.
An existing report covers the configuration, or the configuration is tested at an accredited laboratory.
The test report plus specification clauses ready for the tender documents.
Reports are issued for the configuration tested; published performance tables for each series will follow as test programmes are completed.