That is to say, you do not qualify for this product
On the wall thickness:
GB/T8478-2008 "Aluminum Alloy Windows and Doors" standard stipulates that the door wall thickness of 2.0mm, the window wall thickness of 1.4mm.
On the airtightness:
Window wind pressure: maximum differential pressure: ± 6000Pa
displacement. Wind pressure: maximum differential pressure: ± 6000Pa
Displacement: ± 25mm
Deformation measurement: error not greater than 0.10mm
Wind pressure measurement accuracy: not greater than ± 2%
Airtightness: flow rate of 0 to 350m3/h
Drenching: 2L/min/m2
Airtightness: General multi-storey level 3, high-rise and public **** building level 4
Building window airtightness classification and its testing methods (GB/T 7107-2002)
4.2 grading index value 3 level 4
Unit sewing length grading index value 2.5 ≥ q1> 1.5 1.5 ≥ q1> 0.5
Unit area grading index value 7.5 ≥ q2> 4.5 4.5 ≥ q1> 0.5
Unit area grading index value 7.5 ≥ q2> 0.5
Airtightness classification index value 7.5 ≥ q2 > 4.5 4.5 q2>4.5 4.5 ≥ q2>1.5
Public **** building energy-saving design standards (GB 50189-2005)
4.2.10 The airtightness of the external windows should not be less than "building window airtightness grading and its testing methods" GB 7107 level 4.
Aluminum alloy energy-saving windows (DBJT08-108-2008)
The airtightness level of the external windows and balcony doors of residential buildings from 1 to 6 floors should not be lower than the current national standard "Grading of air permeability performance of external building windows and its testing methods" GB 7107 level; public **** building windows, 7 floors and more than 7 floors of the external windows of residential buildings and balcony doors. Airtightness level, should not be lower than the level 4 specified in the standard.
Hot summer and cold winter areas of residential building energy-saving design standards (JGJ 134-2001)
4.0.7 1 to 6 layers of the building windows and balcony doors of the airtightness level should not be lower than the current national standard "building windows air permeability performance classification and its testing methods" GB 7107 Ⅲ; 7 layers and more than 7 layers of windows and balcony doors airtightness level, should not be lower than the standard provided by the external windows and balcony doors. grade, should not be lower than the standard provisions of level Ⅱ.
Energy-saving design standards for residential buildings in hot summer and warm winter areas (JGJ 75-2003)
4.0.11 The airtightness level of the external windows of residential buildings from the 1st to the 9th floor should not be lower than level 3, and the airtightness level of the external windows of the 10th floor and above should not be lower than level 4.