This does not seem to exist. The country has only set standards for insulating glass

The materials used in insulating glass should meet the manufacturing and performance requirements of insulating glass. Only this article mentions aluminum strips.

The following are the national standards for insulating glass.

National Standard for Insulating Glass (1)

National Standard for Insulating Glass

Released by the General Administration of Quality Supervision, Inspection and Quarantine on 2002-06-12

Implemented on 2002-10-01

Foreword

This standard refers to the British standard BS5713: 1979 "Technical Requirements for Insulating Glass", ASTM E546-88 "Test Method for Frosting Point of Insulating Glass" and JIS R3209-1998 "Insulating Glass" standard.

This standard is revised on the basis of the original national standards GB/T 11944-1989 "Insulating Glass" and GB/T 7020-1986 "Test Methods for Insulating Glass", and combines the two standards into one standard . The main technical differences between this standard and GB/T 11944-1989 and GB/T 7020-1986 are:

---Redefinition of insulating glass. Including strip-type insulating glass;

---Common specifications and maximum dimensions of insulating glass adopt the provisions of BS 5743:1979;

---The size deviation of insulating glass adopts The provisions of JIS R3209-1998;

---The sealing performance of insulating glass increases the technical requirements for samples with a thickness of 5mm+9mm+5mm;

---The dew point in the dew point test The contact time between the instrument and the glass is specified with reference to ASTM E546-1988 and JIS R 3209-1998 standards.

---Added environmental condition requirements for sealing performance test, dew point test, and climate cycle durability test;

---Ultraviolet radiation resistance increased the requirements for the original film Requirements for defects such as glass dislocation and rubber strip creep. There are no requirements for the environmental conditions of this test;

---The climate cycle durability performance and high temperature durability performance are judged separately.

This standard will replace GB/T 11944-1989 and GB/T 7020-1986 from the date of implementation.

This standard is proposed by the China Building Materials Industry Association.

This standard is under the jurisdiction of the National Architectural Glass Standardization Technical Committee.

The unit responsible for drafting this standard: Qinhuangdao Glass Industry Research and Design Institute.

Units participating in the drafting of this standard: China South Technology Holding (Group) Co., Ltd., Dongying Shengming Glass Co., Ltd.

The main drafters of this standard: Li Yong, Liu Zhifu, Ji Shuwei, Gao Shulan, Dong Fenglong, Wang Lixiang, and Li Xinda.

This standard was first published on December 23, 1989. This is the first revision.

5. Scope

This standard specifies the specifications, technical requirements, test methods, inspection rules, packaging, marking, transportation and storage of insulating glass.

This standard applies to insulating glass for construction, refrigeration and other purposes.

2. Normative application documents

The provisions in the following documents become the provisions of this standard through reference in this standard. For dated reference documents, all subsequent amendments (excluding corrigenda) or revisions do not apply to this standard. However, parties to an agreement based on this standard are encouraged to study whether the latest versions of these documents can be used. . For undated referenced documents, the latest edition applies to this standard.

GB/T 1216 outer diameter micrometer (neq ISO 3611)

GB 9962 laminated glass

GB/T 9963 tempered glass

GB 11614 Float glass

GB 17841 Tempered glass and semi-tempered glass for curtain walls

JC/T 486 Elastic sealant for insulating glass

3. Terminology Definitions

The following terms and definitions apply to this standard.

Sealed insulating glass unit

A product in which two or more pieces of glass are evenly spaced with effective support and bonded and sealed around the edges to form a dry gas space between the glass layers.

4. Specifications

The commonly used shapes and maximum sizes of insulating glass are shown in Table 1.

Glass thickness Interval thickness Maximum size of long side Maximum size of short side

(Except square) Maximum area/m2 Maximum length of square side

3 6

p>

9~12 2110

2110 1270

1271 2.4

2.4 1270

1270

4 6

9~10

12~20 2420

2440

2440 1300

1300< /p>

1300 2.86

3.17

3.17 1300

1300

1300

5 6

9~10

12~20 3000

3000

3000 1750

1750

1815 4.00

4.80

5.10 1750

2100

2100

6 6

9~10

12~20 4550

4550

4550 1980

2280

2440 5.88

8.54

9.00 2000

2440

2440

10 6

9~10

12~20 4270

5000

5000 2000

3000

3160 8.54< /p>

15.00

15.90 2440

3000

3250

12 12~20 5000 3180 15.90 3250

National Standard for Insulating Glass (2)

5. Requirements

6. Materials

The materials used for insulating glass should meet the manufacturing and performance requirements of insulating glass. .

5.1.1 Glass

Float glass, laminated glass, tempered glass, tempered glass and semi-tempered glass for curtain walls, tinted glass, coated glass and patterned glass can be used. Float glass should comply with the regulations of GB 11614, laminated glass should comply with the regulations of GB 9962, tempered glass should comply with the regulations of GB/T 9963, and tempered glass and semi-tempered glass for curtain walls should comply with the regulations of GB 17841. Other types of glass should comply with corresponding standards or be agreed upon by both supply and demand parties.

5.1.2 Sealant

The sealant should meet the following requirements:

7. The elastic sealant for insulating glass should comply with the regulations of JC/T 486.

(2) Plastic sealant for insulating glass should comply with relevant regulations.

5.1.3 Rubber strips

The performance of the rubber strips made of plastic sealant and containing dry corrugated aluminum strips should comply with corresponding standards.

5.1.4 Spacer frame

When using metal spacer frames, they should be stained or chemically treated.

5.1.5 Desiccant

The quality and performance of desiccant should comply with corresponding standards.

5.2 Dimensional deviation

5.2.1 The allowable deviations of length and width of insulating glass are shown in Table 2.

Table 2 (unit is millimeters)

5.2.2 The allowable deviation of the thickness of insulating glass is shown in Table 3 Table 3 (unit is millimeters)

5.2.3 The difference between the two diagonals of the insulating glass

The difference between the diagonal lines of square and rectangular insulating glass should not be greater than 0.2% of the average length of the diagonal line

5.2.4 Glue layer thickness of insulating glass

The thickness of the single-pass sealing strip is 10mm±2mm. The thickness of the outer sealant layer of the double-pass seal is 5mm~7mm (see Figure 1), and the thickness of the sealing layer of the strip is 8mm±2.0mm (see Figure 2). Special specifications or Required products shall be agreed upon by both parties.

5.3 Appearance

The insulating glass shall not have stains, inclusions or sealant splashes that hinder perspective.

5.4 Sealing performance

20 4mm+12mm+4mm samples all meet the following two specifications to be qualified L1) When the test pressure is lower than the ambient air pressure 10Kpa±0.5Kpa, the initial The deviation must be ≥ 0.8mm; (2) After maintaining 2.5 under this air pressure, the reduction in thickness deviation should not exceed 15% of the initial deviation.

All 20 5mm+9mm+5mm samples meet the following two requirements Article 1 is qualified as qualified L1) When the test pressure is 10Kpa±0.5Kpa lower than the ambient air pressure, the initial deviation must be ≥ 0.5mm; (2) After maintaining at this air pressure for 2.5h, the reduction in thickness deviation should not exceed 15% of the initial deviation .Samples of other thicknesses are agreed upon by both parties.

5.5 dew point

20 samples with dew points ≤ -40 degrees are qualified.

5.6 Ultraviolet radiation resistance

The two samples were irradiated with ultraviolet light for 168 hours. There were no traces of fogging or contamination on the inner surface of the samples. The original glass pieces were obviously misaligned and the rubber strips were creeping. They were qualified. If one or two samples are unqualified, two spare samples can be taken for re-testing. Both samples meet the requirements and are considered qualified.

5.7 Climate cycle durability performance

Dew point test is carried out after the sample is cycled. The dew point of the four samples is ≤ -40 degrees, which is considered qualified.

5.8 High Temperature and High Humidity Durability Performance

The sample is subjected to a dew point test after the cycle test. The dew point of 8 samples is ≤ —40 degrees, which is considered qualified.

6. Test method

6. 1 Dimensional deviation

The length, width, diagonal knot and glue layer thickness of the insulating glass are measured with a steel tape measure.

The thickness of the insulating glass is measured at the midpoint of the four sides within 15mm from the edge of the glass plate with an outer diameter micrometer with an accuracy of 0.01mm that complies with GB/T1216 or an instrument with the same accuracy. The arithmetic mean of the measurement results The value is the thickness value.

6.2 Appearance

Use the product or sample as the sample, under good natural light or scattered light conditions (see Figure 3), from the insulating glass 1m from the front, inspect with naked eyes.

6.3 Sealing test

National standard for insulating glass (3)

6.3.1 Test principle

The sample is placed below the environment In a vacuum box with an air pressure of 10Kpa±0.5Kpa, the internal pressure is greater than the pressure inside the box. The sealing performance of the sample is determined by measuring the thickness growth and deformation stability of the sample.

6.3.2 Instruments and equipment

Vacuum box: A box made of metal material that can meet the vacuum required by the test. The vacuum box is equipped with a bracket and a dial indicator for measuring thickness changes, and the fulcrum is located in the middle of the sample. (See Figure 4)

6.3.3 Test conditions

The samples are 20 samples with a size of 510mm*360mm made under the same process conditions as the products. The experiment is at 23℃±2℃. Conducted in an environment with a humidity of 30% to 75%. All samples were placed in this environment for more than 12 hours before the experiment.

6.3.4 Test steps

6.3.4.1 Divide the samples into batches Put it into the vacuum box and install it in the bracket holding the dial indicator.

6.3.4.2 Adjust the dial indicator to zero or record the initial reading of the dial indicator.

6.3 .4.3 During the test, reduce the pressure in the vacuum box to 10Kpa±0.5Kpa lower than the ambient air pressure. Record the dial indicator reading within 5min~10min after reaching the low pressure, and calculate the initial deviation of the thickness.

6.3. 4.4 After maintaining low pressure for 2.5 hours, record the reading of the dial indicator within 5 minutes to calculate the thickness deviation.

6.4 Dew point test

6.4.1 Test principle

After placing the dew point meter, the glass surface is locally cooled. When it reaches a certain temperature, the internal water vapor condenses at the cooling point. This temperature is the dew point.

6.4..2 Instruments and Equipment

6.4.2.1 Dew point meter: The height of the measuring tube is 300mm, and the diameter of the measuring surface is 50mm (see Figure 5)

6.4.2.2 Thermometer: The measurement range is -80℃~30℃, and the accuracy is 1℃.

6.4.3 Test conditions

The sample is the product or 20 samples with a size of 510mm*360mm made under the same conditions as the product. The test was conducted at a temperature of 23°C ± 2°C and a relative temperature of 30% to 75%. Place the sample under this environmental condition for more than one week before testing.

6.4.4 Test steps

6.4.4.1 Inject ethanol or acetone to a depth of about 25mm into the container of the dew point meter, and then add dry ice. Cool its temperature to equal to or lower than -40°C and maintain the temperature during the test.

6.4.2.2 Place the sample horizontally and apply a layer of ethanol or acetone on it. Make the dew point meter in close contact with the surface, and the dwell time is as specified in Table 4.

6.4.4.3 Remove the dew point meter and immediately observe whether there is dew or frost on the inner surface of the glass sample.

8. Ultraviolet radiation resistance test

6.5.1 Test principle

This test is to test the ultraviolet radiation resistance of insulating glass. After irradiation, the sealant If there are volatile substances such as organic matter and water, these substances can be adsorbed to the inner surface of the glass through the cooling water pan. And examine the creep of the rubber strip under ultraviolet irradiation of the sample.

6.5.2 Instruments and Equipment

6.5.2.1 Ultraviolet test chamber: The box size is 560mm*560mm*560mm, equipped with 2 150mm cooling plates made of copper plates ( See Figure 6)

6.5.2.2 The light source is an MLU type 300W ultraviolet lamp with a voltage of 200V±5V and its output power is not less than 40W/m2. The output power of the light source must be checked with a light meter before each test. .

6.5.2.3 The temperature inside the test chamber is 50C±3℃.

6.5.3 Test conditions

The samples are 4 pieces (2 pieces for testing and 2 pieces for backup) with a size of 510mm*360mm made under the same process conditions as the product.

6.5.4 Test steps

6.5.4.1 Place 2 samples in the test box. The samples are placed as shown in Figure 6. The distance between the center of the sample and the light source is 300mm. A cooling plate is placed on each central surface of the sample, and then water is continuously passed through for cooling. The inlet water temperature is maintained at 16°C ± 2°C, and the difference in water temperature between the inlet and outlet of the cooling plate shall not exceed 2°C.

National Standard for Insulating Glass (IV)

6.5.4.2 After continuous irradiation with ultraviolet light for 168 hours, remove the sample and store it at 23℃±2℃ for one week, and then wipe the surface .

6.5.4.3 According to 6.2, observe whether there is fog, oil or other dirt on the inner surface of the sample, whether there is obvious misalignment of the glass, and whether there is creep of the rubber strip.

9. Climate cycle durability test

6.6.1 Test principle

This test is an accelerated simulation test of outdoor natural conditions. It is tested through the test. The ability to withstand outdoor natural conditions. After the test, the performance is determined based on the dew point test.

6.6.2 Instruments and Equipment

Climate cycle test device: It is composed of heating, cooling, water spray, blower and other components that can meet the requirements of simulating climate change (see Figure 7).

6.6.3 Test conditions

The sample size is 510mm*360mm, which is 510mm*360mm made under the same conditions as the product (4 for testing and 2 for spare). It has not been tested in 6.5 of insulating glass. The test is carried out at a temperature of 23℃±2℃ and a relative humidity of 30%~75%.

6.6.4 Test steps

6.6.4.1 Put 4 pieces The sample is installed on the frame of the climate cycle device. One surface of the sample is exposed to the climate cycle conditions, and the other surface is exposed to the temperature environment. When installing, be careful not to cause mechanical stress on the sample.

6.6.4.2 The climate cycle test is carried out for 320 consecutive cycles, and each cycle is divided into three stages.

Heating stage: the time is 90min±1min, and the temperature in the box is raised to 60min±30min. 52℃±2℃, keep warm the rest of the time.

Cooling stage: The time is 90min±1min. After cooling for 25min, spray 24℃±3℃ water on the surface of the sample for 5min. The rest of the time is ventilated and cooled.

Cooling stage: The time is 90min±1min, the temperature is reduced to -15℃±2℃ within 60min±30min, and the rest of the time is kept warm.

The maximum allowed in the first 50 cycles Two specimens are broken. They can be replaced with spare specimens. Continue testing after replacement. The replaced specimens are subjected to 320 cycles of testing.

6.4.4.3 After completing 320 cycles of testing, remove the specimens. Place it for a week at 23℃±2℃ and relative humidity of 30%~75%, and then measure the dew point according to 6.4.

10. High temperature and high humidity durability test

6.7.1 Test principle

This test is to test the durability performance of insulating glass in high temperature and high humidity environment , the sample undergoes thermal expansion and contraction due to high temperature, high humidity and temperature changes, forcing water vapor to enter the interior of the sample. After the test, the quality of the performance is determined based on the dew point test.

6.7.2 Instruments and Equipment

High temperature and high humidity test chamber (see Figure 8): It is composed of heating and water spray devices.

6.7.3 Test conditions

The sample size is 510mm*360mm, which is 10 pieces (8 pieces for testing and 2 pieces for backup) made under the same process conditions as the product. The insulating glass tested in 6.5 and 6.6 is placed in a high temperature and high humidity test chamber with a relative humidity greater than 95%, and water is continuously sprayed between the chamber wall and the partition to keep the temperature between 25℃±3℃~55℃ There are regular changes between ±3℃.

6.7.4 Test steps

6.7.4.1 The test is conducted for 224 cycles, and each cycle is divided into two stages

Heating stage: time is 140min± 1min, raise the temperature in the box to 55℃±3℃ within 90min±1min, and keep it warm for the rest of the time.

Cooling stage: The time is 40min±1min. The temperature in the box is raised to 25℃±3℃ within 30min±1min, and the remaining time is kept warm.

6.7.4.2 In the first 50 cycles of the test, a maximum of 2 specimens are allowed to break, and the test can be continued after replacement. The replaced sample was subjected to another 224 cycles of testing.

6.7.4.3 After completing 224 cycles, remove the sample and place it for a week at a temperature of 23°C to 2°C and a relative humidity of 30% to 75%, and then measure the dew point according to 6.4.

7. Inspection rules

7.1 Type inspection classification

7.1.1 Type inspection

Plastic inspection items include appearance and dimensional deviations , sealing performance, dew point, ultraviolet radiation resistance, climate cycle durability and high temperature and high humidity durability tests.

7.1.2 Factory inspection

Factory inspection items include appearance and dimensional deviations. If additional inspection items are required, it shall be agreed upon by both parties.

7.2 Batch grouping and sampling

7.2.1 Batch grouping: Using insulating glass produced under the same process conditions, 500 pieces are considered as one batch.

7.2.2 The appearance and dimensional deviation of the product shall be randomly sampled from the delivery batch for inspection according to Table 5.

For other technical properties required by the product, if the product is inspected, the batch of products will be randomly selected according to the quantity required by the inspection item.

7.3 Judgment Rules

If the number of unqualified products is equal to or greater than the number of unqualified products in Table 5, the appearance quality and dimensional deviation of the batch of products will be considered unqualified. Other performances should also comply with the provisions of the corresponding clauses, otherwise the item will be considered unqualified. If any of the above items is unqualified, the batch of products will be considered unqualified.

8. Packaging, marking, transportation and storage

8.1 Packaging

Insulated glass is packed in wooden boxes or containers, and the packaging should comply with relevant national regulations. Each piece of glass should be separated by plastic or paper, and the space between the glass and the packaging box should be filled with light materials that are not likely to cause scratches or other appearance defects on the glass.

8.2 Marks

Packaging marks should comply with relevant national standards and should include product name, factory name, factory address, trademark, specifications, quantity, production date, batch number, implementation standards, And should be marked with words such as "upward, handle with care, protect from rain, moisture, sunlight, be careful when breaking".

8.3 Transportation

Products can be transported by various types of vehicles. The handling rules and conditions should comply with relevant national regulations. When transporting, it must not be laid flat or tilted, and the length direction is the same as the direction of movement of the transport vehicle. Rainproof measures should be taken.

8.4 Storage

The product should be placed vertically in a dry room.