Some standard content:
National Standard of the People's Republic of China
Safety glasses for automobiles
(available for certification)
Safety glasses for road vehicles (applicable for certification)Theme content and scope of application
This standard stipulates the thickness and performance indicators of safety glass for automobiles. This standard applies to safety glass for automobiles and also to safety glass for other road vehicles. 2 Reference standards
GB1216 outer diameter micrometer
GB5137.1 Test method for mechanical properties of automotive safety glass GB5137.2 Test method for optical properties of automotive safety glass GB 9656--1996
Replaces GB 9656 -88
GB5137.3 Automotive safety glass resistance to radiation, high temperature, moisture, combustion and simulated climate test methods JC/T512 Automotive safety glass packaging
JC/T632 Automotive safety glass terminology||tt ||3 nouns, terms
a.
car).
M1 category cars: passenger cars with less than 9 designated passengers (cars with more than four wheels or three-wheeled cars with a total weight of more than 1t). Cars other than category M1: refer to cars other than M1 category cars. b.
For other terms in this standard, see JC/T632. 4 Categories and Applications
4.1 Categories
aA type laminated glass,
b.
c.
Class B laminated corrugated glass:
area tempered glass;
d.
tempered glass
4.2 Application
4.2 .1Front windshield
Class A laminated glass;
e.
Class B laminated glass;
b.
c.||tt ||Regional tempered glass
4.2.2 Glass other than front windshield
State Bureau of Technical Supervision approved 374 on 1996-03-26
Implemented on 1996-10-01||tt| |Class A laminated glass:
Class B laminated glass;
b.
c.
Tempered glass
5 Technical requirements||tt| |GB9656—1996
The technical requirements for different types of safety glass used in different parts of automobiles should comply with the corresponding provisions of Table 1. Table 1 Technical requirements and test method provisions
Front wind-tight glass| |tt||Test
Examination
Thickness
Transmittance
Sub-image deviation
Light distortion
Color recognition||tt| |Abrasion resistance
Heat resistance
Irradiation resistance
Moisture resistance
Human head model impact
Penetration resistance
Impact resistance
Fragmentation status
Thickness
5.1
Class A
Laminated glass
5.1
5.2|| tt||5.3
5.4
5.5
5.6
5.7
5.8
5.9
5.10||tt| |5.11
5.12
Class B
Laminated glass
5.1
5. 2
5.3
5. 4
5.5
5.6
5.7
5.8
5.9
5.12
area
tempered glass| |tt||5. 1
5.2
5.3
5.4
5.5
5.10
5.13.1
The thickness of the product and its deviation must comply with the requirements of Table 2. Class A
Laminated glass
5.1
5. 2
.7
5.7| |tt||5.8
5. 9
5.10
5.12
.
Table 2 Thickness and thickness deviation
Type|| tt||Class A laminated glass
Class B laminated glass
Quancheng tempered glass
Tempered glass
Nominal thickness
Original glass and intermediate layer The total thickness of
5
6
3.1
3.5
4
5
6
Note: 1) The nominal thickness of the central glass is agreed upon by the supplier and the buyer. 2) It is the number of original glass layers that make up the laminated glass, 5.2 transmittance
5.2.1 transmittance of the front windshield glass
glass other than the front windshield
Category B|| tt||Laminated glass
5.1
5. 2
5.7
5.8
5.9
5.12
Tempered glass
5.1
5. 2
5.12
5.13.2
Thickness and its deviation
Test method
6.1
6.2
6.3
6.4
6.5
6.6
6.7
6.8
6.9|| tt||6.10
6-11
6.12
6.13
mm
nominal thickness\±0.2㎡2)
5.0± 0.2
6.0±0.2
3.1±0.2
3.5±0.2
4.0±0.2
5.0±0.2
6.0±0.2| |tt||375
GB 9656--1996
Take 3 samples for testing. All 3 samples must comply with the requirements in Table 3. Table 3 Transmittance of front windshield glass
Type
Type A laminated glass
Type B laminated glass
area tempered glass
automobile type|| tt||Mi
Outside MI
Note: 1) Test areas B, I,, b and the test area A mentioned later are shown in Appendix A. 5.2.2 Transmittance of glass other than front windshield
test area
B or bu
I or >
transmittance
≥70%| |tt|| For the transmittance of the driver's visual area, take 3 samples for testing. The transmittance of the 3 samples must be greater than or equal to 70%. The transmittance of the remaining glass other than the front wind seal can be agreed upon by both parties. 5.3 Deviation of secondary image
Take 4 samples for testing. All 4 samples must comply with the provisions of Table 4. Table 4 Deviation of secondary image of front windshield
Type
Class A laminated glass
Class B laminated glass
Regional tempered glass
Car type
M
M, other than
Test area| | tt | . 5.4 Optical distortion
Take 4 samples for testing. All 4 samples must comply with the requirements of Table 5. Table 5 Light distortion of front windshield
Type
Class A laminated glass
Class B laminated glass
Area tempered glass
Car type|| tt||M
M, other than
test area
A or a
B or b
I or a
Note: The part of test area A and 1 included within 100mm of the edge of the product is allowed to be 6°. 5.5 Color recognition
Maximum separation of main image and secondary image
15
25
15
Maximum optical distortion
2
6
2
When the test area is colored, take 4 samples for testing. All 4 samples must comply with the requirements of Table 6. Table 6 Color identification of front windshield glass
Type
Class A laminated glass
Class B laminated glass
Regional glass
5.6 Wear resistance
Car type
M.
M, other than
test area
B or b
I or 8| |tt||Take 3 samples for testing. All 3 samples must comply with the requirements in Table 7. 376
Color identification
Can identify white, yellow, red, green, blue, amber colors
5.7 Heat resistance
Type
Class A Laminated glass
Class B laminated glass
GB 9656--1996
Table 7 Abrasion resistance of laminated glass
Haze caused by abrasion||tt| |2%
Take 3 samples for testing. If all 3 samples meet the requirements of Table 8, they are qualified. If 1 sample meets the requirements, it is deemed unqualified. When 2 samples meet the requirements, additional test 3 will be added. If all three new samples meet the requirements in Table 8, they are deemed to be qualified. Table 8 Heat resistance of laminated glass
Type
Class A laminated glass
Class B laminated glass
5.8 Irradiance
State after boiling
The sample is allowed to have cracks, but no bubbles or other defects can occur in the part beyond the edge 15mm (newly cut edge 25mm) or 10mm beyond the crack
Take 3 samples for testing, 3 If all samples meet the requirements in Table 9, they are considered qualified; if one sample meets the requirements, they are considered unqualified. When two samples meet the requirements, three more new samples are tested. If all three samples meet the requirements of Table 9, they are deemed to be qualified. Table 9 Radiation resistance of laminated glass
Type
Class A laminated glass
Class B laminated glass
5. 9 Moisture resistance
Applicable parts
Front windshield
Other than front windshield
Car type
Mi
Other than M
Test area
B Or b
1 or a
The state after ultraviolet irradiation
1.×100%≥95%,
2. y≥70%
1 is the transmittance before ultraviolet irradiation; 1 is the transmittance after ultraviolet irradiation;
3. When checking with a white background, there should be no significant changes (discoloration, bubbling, turbidity, etc.)
Take 3 samples for testing. If all 3 samples meet the requirements of Table 10, they are qualified. 1 sample meets the requirements. is unqualified. When two samples meet the requirements, three more new samples are tested. If all three samples meet the requirements of Table 10, they are deemed to be qualified. Table 10 Moisture resistance of laminated glass
Type
Class A laminated glass
Class B laminated glass
5.10 Human head model impact
After resistance test Status
The part beyond the edge 10mm (newly cut edge 15mm) must not have significant changes (discoloration, bubbling, turbidity, etc.) Human head model impact test of the front windshield, in compliance with 5.10.1 and 5.10.2 Any one item is qualified. The human head model impact test on glass other than the front windshield is qualified if it meets 5.10.2. 5.10.1 Use the product as a sample
Take 4 samples for testing. If all 4 samples meet the requirements of Table 11, they are qualified. If 2 or less samples meet the requirements, they are considered unqualified. When 3 pieces meet the requirements, 4 additional new samples are tested. If all 4 pieces meet the requirements of Table 11, they are qualified. 377
Type
Class A laminated glass
area tempered glass
drop height\, m
1.5
1.5||tt| |GB9656-1996
Table 11
Human head model impact of the product
State after impact
1. Many annular and radial cracks will be generated with the impact point as the center. The radius of the annular crack closest to the impact point shall not be greater than 80mm#
2. The glass must be adhered to the intermediate layer. Outside the 60mm diameter circle centered on the impact point, fragments with a width of less than 4mm are allowed to be peeled off:
3. There is no area larger than 20cm2 on the impact side of the sample. The middle layer is exposed 4. If the crack length of the middle layer is less than 35mm, the sample must be destroyed
Note: 1) The drop height refers to the height from the surface of the sample to the lower end of the human head model. 5.10.2 Use test pieces as specimens
Take 6 specimens for testing. If all 6 specimens meet the requirements of Table 12, they are qualified. If 4 or less specimens meet the requirements, they are deemed unqualified.
When 5 samples meet the requirements, 6 additional new samples will be tested. If all 6 samples meet the requirements of Table 12, they are qualified. Table 12 Test piece impact of human head model
Type
Class A laminated glass
area tempered glass
5.11 Penetration resistance
Applicable parts|| tt||Front windshield
Outside the front windshield
Front wind tightness
Drop height+m
4
1.5
1.5
State after impact
Many circular cracks will be generated centered on the impact point, but they should comply with: 1. No penetration;
2. No large fragments peeling off||tt ||The specimens must be destroyed
Take 6 specimens for testing. If all 6 specimens meet the requirements of Table 13, they are qualified. If 4 or less specimens meet the requirements, they are deemed unqualified.
When 5 samples meet the requirements, 6 additional new samples will be tested. If all 6 samples meet the requirements of Table 13, they are qualified. Table 13 Penetration resistance of front windshield glass
Type
Class A laminated glass
5.12 Impact resistance
5.12.1 Impact resistance of front windshield glass Property
Drop height, m
4
State after impact
The steel ball cannot penetrate the sample within 5$ after impact
Take respectively Class A laminated glass is tested on 10 samples each at 40℃ and -20℃. Each group of 8 or more samples a
is qualified if it meets the requirements of Table 14. Samples with less than 7 samples are qualified. If they meet the requirements, additionally test 10 new samples. If all 10 samples meet the requirements of Table 14, they are deemed to be qualified.
Table 14 Impact resistance of front windshield glass
Type
Class A laminated glass
378
1. The steel ball cannot penetrate the sample :
State after impact
2． The total mass of fragments peeled off from the opposite side of the impact surface shall not exceed the nominal thickness specified in Table 15,
mm
e4.5
4.5y≥70%
is the transmittance before ultraviolet irradiation 1 is the transmittance after ultraviolet irradiation;
3. When checking with a white background, there should be no significant changes (discoloration, bubbling, turbidity, etc.)
Take 3 samples for testing. If all 3 samples meet the requirements of Table 10, they are qualified. 1 sample If it meets the requirement, it is considered unqualified. When two samples meet the requirements, three more new samples are tested. If all three samples meet the requirements of Table 10, they are deemed to be qualified. Table 10 Moisture resistance of laminated glass
Type
Class A laminated glass
Class B laminated glass
5.10 Human head model impact
After resistance test Status
The part beyond the edge 10mm (the newly cut edge 15mm) must not have significant changes (discoloration, bubbling, turbidity, etc.) The impact test of the front windshield with a human head model complies with 5.10.1 and 5.10. 2 Any one item is qualified. The human head model impact test on glass other than the front windshield is qualified if it meets 5.10.2. 5.10.1 Use the product as a sample
Take 4 samples for testing. If all 4 samples meet the requirements of Table 11, they are qualified. If 2 or less samples meet the requirements, they are considered unqualified. When 3 pieces meet the requirements, 4 additional new samples are tested. If all 4 pieces meet the requirements of Table 11, they are qualified. 377
Type
Class A laminated glass
area tempered glass
drop height\, m
1.5
1.5||tt| |GB9656-1996
Table 11
Human head model impact of the product
State after impact
1. Many annular and radial cracks will be generated with the impact point as the center. The radius of the annular crack closest to the impact point shall not be greater than 80mm#
2. The glass must be adhered to the intermediate layer. Outside the 60mm diameter circle centered on the impact point, fragments with a width of less than 4mm are allowed to be peeled off:
3. There is no area larger than 20cm2 on the impact side of the sample. The middle layer is exposed 4. If the crack length of the middle layer is less than 35mm, the sample must be destroyed
Note: 1) The drop height refers to the height from the surface of the sample to the lower end of the human head model. 5.10.2 Use test pieces as specimens
Take 6 specimens for testing. If all 6 specimens meet the requirements of Table 12, they are qualified. If 4 or less specimens meet the requirements, they are deemed unqualified.
When 5 samples meet the requirements, 6 additional new samples will be tested. If all 6 samples meet the requirements of Table 12, they are qualified. Table 12 Test piece impact of human head model
Type
Class A laminated glass
area tempered glass
5.11 Penetration resistance
Applicable parts|| tt||Front windshield
Outside the front windshield
Front wind tightness
Drop height+m
4
1.5
1.5
State after impact
Many circular cracks will be generated centered on the impact point, but they should comply with: 1. No penetration;
2. No large fragments peeling off||tt ||The specimens must be destroyed
Take 6 specimens for testing. If all 6 specimens meet the requirements of Table 13, they are qualified. If 4 or less specimens meet the requirements, they are deemed unqualified.
When 5 samples meet the requirements, 6 additional new samples will be tested. If all 6 samples meet the requirements of Table 13, they are qualified. Table 13 Penetration resistance of front windshield glass
Type
Class A laminated glass
5.12 Impact resistance
5.12.1 Impact resistance of front windshield glass Property
Drop height, m
4
State after impact
The steel ball cannot penetrate the sample within 5$ after impact
Take respectively Class A laminated glass is tested on 10 samples each at 40℃ and -20℃. Each group of 8 or more samples a
is qualified if it meets the requirements of Table 14. Samples with less than 7 samples are qualified. If they meet the requirements, additionally test 10 new samples. If all 10 samples meet the requirements of Table 14, they are deemed to be qualified.
Table 14 Impact resistance of front windshield glass
Type
Class A laminated glass
378
1. The steel ball cannot penetrate the sample :
State after impact
2. The total mass of fragments peeled off from the opposite side of the impact surface shall not exceed the nominal thickness specified in Table 15,
mm
e4.5
4.5y≥70%
is the transmittance before ultraviolet irradiation 1 is the transmittance after ultraviolet irradiation;
3. When checking with a white background, there should be no significant changes (discoloration, bubbling, turbidity, etc.)
Take 3 samples for testing. If all 3 samples meet the requirements of Table 10, they are qualified. 1 sample If it meets the requirement, it is considered unqualified. When two samples meet the requirements, three more new samples are tested. If all three samples meet the requirements of Table 10, they are deemed to be qualified. Table 10 Moisture resistance of laminated glass
Type
Class A laminated glass
Class B laminated glass
5.10 Human head model impact
After resistance test Status
The part beyond the edge 10mm (newly cut edge 15mm) must not have significant changes (discoloration, bubbling, turbidity, etc.) The impact test of the human head model of the front windshield is in compliance with 5.10.1 and 5.10. 2 Any one item is qualified. The human head model impact test on glass other than the front windshield is qualified if it meets 5.10.2. 5.10.1 Use the product as a sample
Take 4 samples for testing. If all 4 samples meet the requirements of Table 11, they are qualified. If 2 or less samples meet the requirements, they are considered unqualified. When 3 pieces meet the requirements, 4 additional new samples are tested. If all 4 pieces meet the requirements of Table 11, they are qualified. 377
Type
Class A laminated glass
area tempered glass
drop height\, m
1.5
1.5||tt| |GB9656-1996
Table 11
Human head model impact of the product
State after impact
1. Many annular and radial cracks will be generated with the impact point as the center. The radius of the annular crack closest to the impact point shall not be greater than 80mm#
2. The glass must be adhered to the intermediate layer. Outside the 60mm diameter circle centered on the impact point, fragments with a width of less than 4mm are allowed to be peeled off:
3. There is no area larger than 20cm2 on the impact side of the sample. The middle layer is exposed 4. If the crack length of the middle layer is less than 35mm, the sample must be destroyed
Note: 1) The drop height refers to the height from the surface of the sample to the lower end of the human head model. 5.10.2 Use test pieces as specimens
Take 6 specimens for testing. If all 6 specimens meet the requirements of Table 12, they are qualified. If 4 or less specimens meet the requirements, they are deemed unqualified.
When 5 samples meet the requirements, 6 additional new samples will be tested. If all 6 samples meet the requirements of Table 12, they are qualified. Table 12 Test piece impact of human head model
Type
Class A laminated glass
area tempered glass
5.11 Penetration resistance
Applicable parts|| tt||Front windshield
Outside the front windshield
Front wind tightness
Drop height+m
4
1.5
1.5
State after impact
Many circular cracks will be generated centered on the impact point, but they should comply with: 1. No penetration;
2. No large fragments peeling off||tt ||The specimens must be destroyed
Take 6 specimens for testing. If all 6 specimens meet the requirements of Table 13, they are qualified. If 4 or less specimens meet the requirements, they are deemed unqualified.
When 5 samples meet the requirements, 6 additional new samples will be tested. If all 6 samples meet the requirements of Table 13, they are qualified. Table 13 Penetration resistance of front windshield glass
Type
Class A laminated glass
5.12 Impact resistance
5.12.1 Impact resistance of front windshield glass Property
Drop height, m
4
State after impact
The steel ball cannot penetrate the sample within 5$ after impact
Take respectively Class A laminated glass is tested on 10 samples each at 40℃ and -20℃. Each group of 8 or more samples a
is qualified if it meets the requirements of Table 14. Samples with less than 7 samples are qualified. If they meet the requirements, additionally test 10 new samples. If all 10 samples meet the requirements of Table 14, they are deemed to be qualified.
Table 14 Impact resistance of front windshield glass
Type
Class A laminated glass
378
1. The steel ball cannot penetrate the sample :
State after impact
2. The total mass of fragments peeled off from the opposite side of the impact surface shall not exceed the nominal thickness specified in Table 15,
mm
e4.5
4.55
4.55
4.56.5
GB 9656--1996
Table 15 Impact resistance fragment mass
Height of falling ball, m
20 ℃
8.5||tt| |9
9.5
10
40℃
9
10
11
12
Fragment mass,
12
15
20
25
b. Take 6 Class B laminated glass samples for testing, 5 or 5 If more than one sample meets the requirements in Table 16, it is considered qualified; if three or less samples meet the requirements, it is considered unqualified.
When 4 samples meet the requirements, 6 additional new samples will be tested. If all 6 samples meet the requirements of Table 16, they are qualified. Table 16 Impact resistance of front windshield glass
Type
Class B laminated glass
Height of falling ball, m
8
5.12.2 Front wind The impact resistance of glass other than windows is a.
.
1. The steel ball cannot penetrate the sample;
The state after impact
2. The total mass of the remaining fragments from the opposite side of the impact surface does not exceed 20g. Take 4 pieces of laminated glass and test The samples are tested. If all 4 samples meet the requirements of Table 17, they are considered qualified. If 1 sample is compliant, it is considered unqualified. When 2 or 3 samples are compliant, additional 4 new samples are tested. If all 4 samples are compliant. The provisions of Table 17 are qualified b.
Take 6 tempered glass samples for testing. If 5 or more samples meet the requirements of Table 17, they are qualified. If 3 or less samples meet the requirements, they are qualified. as unqualified.
When 4 samples meet the requirements, additional 6 new samples will be tested. If all 6 samples meet the requirements of Table 17, they are qualified. Table 17 Types of impact resistance of glass other than front windshield
Class A laminated glass
Class B laminated glass
Tempered glass
5.13 Fragment status
Nominal thickness (e),mm
e5.5
5.56. 5
e3.5
e>3.5
5.13.1 The falling ball height of the fragmented tempered glass in the area, m
5
6| |tt||7
2
2.5
State after impact
1. The steel ball cannot penetrate the sample,
2. The total mass of the fragments shaved off from the opposite side of the impact surface does not exceed 15g. The sample cannot be destroyed
Take 6 regional tempered glass samples for testing. If all 6 samples meet the requirements of Table 18, they are qualified. 379
Partition
Peripheral area
Main planning area
Transition area
GB 9656--1996
Table 18 Regional tempered glass Fragment status
Fragment status
1. In any 50mm×50mm square, the number of fragments shall be no less than 40 and no more than 350. In the case of less than 40 pieces, it is also allowed if the number of fragments in the 100mm×100mm square containing the part is not less than 160 pieces; 2. In the above regulations, fragments across the square boundary should be counted as half a piece. 3. The fragments within 20mm of the edge of the product will not be inspected, and the number of fragments within a circle with a radius of 75mm with the impact point as the center will not be inspected;
4 .No more than 3 fragments exceeding 3cm2 are allowed, but more than 2 fragments exceeding 3cm* are not allowed in a circle with a diameter of 100mm:
5. Long strips of fragments are allowed, and their length does not exceed 75mm, And the splash part is not blade-shaped, and the angle formed by the long fragments extending to the edge of the glass and the edge shall not be greater than 45°1. The cumulative area of ??fragments larger than 2cm shall not be less than 15% of the 500mm×200mm rectangular area of ??the evaluation area*. But if The height of the front windshield is less than 440 mm or the actual vehicle installation angle of the front windshield is not more than 15°, and the cumulative area of ??fragments larger than 2 cm2 should not be less than 10% of the rectangular area of ??evaluation area 1: 2. There must be no larger than 16cm Fragments,
3. Three fragments larger than 16cm and less than 25cm2 are allowed within a circle with a radius of 10cm with the impact point as the center. 4. The shape of the fragments should be basically regular and without sharp corners. However, no more than 10 irregular fragments are allowed in any 500mm×200mm rectangle, and the number of irregular fragments in the entire front windshield glass is not more than 25. However, fragments with a sharp angle length greater than 35mm as defined in Note 2 are not allowed to exist,
5. .Long-shaped fragments are allowed, but their length shall not exceed 100 mm. The fragment state must be between the allowed fragment states of two adjacent areas. Note: 1) When the height dimension of the sample is less than 440mm, the evaluation area shall be 500×150mm. rectangular shape. When the height dimension of the sample is more than 440mm, the evaluation area shall be a rectangular shape of 500×200mm. 2) Irregular fragments refer to fragments that cannot be accommodated within a circle with a diameter of 40 mm, or have at least one sharp corner with a length greater than 15 mm. The length of the sharp corner refers to the part from the top of the sharp corner to the width of the sharp corner equal to the thickness of the glass. length, and fragments with one or more sharp angles less than 40°. When one of the six specimens does not meet the requirements of Table 18, but the fragment status does not exceed the following range: Peripheral area: no more than 5 long strip fragments with a length of 75 to 150 mm. Main viewing area: With the impact point as the center of the circle, there are no more than 3 fragments with an area of ??16 to 20 cm2 outside a radius of 100 mm. There should be no more than 4 long strips with a length of 100~175mm. At this time, an additional new sample is tested, and repeated testing at the same impact point is performed. If it meets the requirements of Table 18, or is within the above range, it will be qualified.
When 2 of the 6 specimens do not meet the requirements of Table 18, but their fragmentation state does not exceed the above-mentioned range, additional 6 new specimens shall be tested. If all 6 specimens comply with the requirements of Table 18 regulations, or if no more than 2 pieces are within the above range, it is qualified. 5.13.2 Fragment status of tempered glass
a. For flat tempered glass or single curved tempered glass, take 3 samples for testing. If all 3 samples meet the requirements in Table 19, they are qualified.
b. For composite curved curved tempered glass, take 4 samples for testing. If all 4 samples meet the requirements in Table 19, they are qualified.
380
Type
Tempered glass
GB 9656-1996
Table 19 Fragment status of tempered glass
Fragment status||tt ||1. In any square of 50mm×50mm, the number of fragments shall be no less than 40, but not more than 400. If the thickness is no greater than 3.5mm, the number of fragments shall be more than 40 and less than 450; 2. In the above regulations, the fragments spanning the edge of the square should be counted as half a piece: 3. The fragments within 20mm of the edge of the product will not be inspected; the fragments within a 75mm radius with the impact point as the center will not be inspected; 4. Except for the above items Except for the parts specified in Article 3, no pieces exceeding 3ctm are allowed. 5. A small number of long strips are allowed, their length does not exceed 75mm, and their parts are not blade-shaped. The angle formed by the long strips extending to the edge of the glass and the edge is not greater than 45°. When one of a set of samples does not meet the table 19, but the fragment status does not exceed the following range: no more than 5 long strip fragments 60~~75mm long. No more than 4 long strips of 75 to 100mm length. At this time, an additional new sample is tested, and repeated testing at the same impact point is performed. If it meets the requirements of Table 19, or is within the above-mentioned range, it is qualified.
When 2 pieces of a group of samples do not meet the requirements of Table 19, but their fragmentation state does not exceed the above specified range, repeat all impact point tests on a new group of samples. If they meet the requirements of Table 19 stipulations, or when no more than 2 new samples of this group are within the above-mentioned stipulations, they are qualified. 6 Test method
When using the product as a sample for testing, if the inspection item does not affect its performance, the sample can be used to continue testing other items. When using test pieces for testing, the test pieces must be produced from the same material and under the same conditions as the product. 6.1 Determination of thickness
Use a dry ruler that complies with GB1216 or an instrument with the same accuracy to measure the midpoint of each side of the glass. The arithmetic mean of the measurement results on each side is used as the thickness value. The measurement value should be accurate to 0.01 mm. 6.2 Determination of transmittance
Conduct the test according to the GB5137.2 method.
6.3 Sub-image deviation
Conduct the test according to the GB5137.2 method.
6.4 Optical distortion
Test according to GB5137.2 method.
6.5 Color Identification
Conduct the test according to the GB5137.2 method.
6.6 Wear resistance
Test according to GB5137.1 method.
6.7 Heat resistance
Test according to GB5137.3 method.
6.8 Radiation resistance
Tested according to GB5137.3 method.
6. 9 Moisture resistance
Test according to GB5137.3 method.
6.10 Human Head Model Impact
Conduct the test according to the GB5137.1 method.
6.11 Penetration resistance
Tested according to GB5137.1.
381
6.12 Impact resistance
Tested according to GB5137.1 method.
6.13 Fragmentation status
Test according to GB5137.1 method.
6.13.1 Zoning of regional tempered glass
GB 9656-1996
Peripheral area: an area at least 70mm wide from the periphery of the glass. a.
b． Main viewing area: A rectangle in front of the driver with a height of at least 200mm and a length of 500mm. c. Transition area: the area between the main viewing area and the peripheral area, generally no more than 50 mm in width. 6.13.2 Impact point location of regional tempered glass The impact point location is shown in Figure 1. wwW.bzxz.Net
Point 1: in the center of the main viewing area;
Point 2: located on the center line of the transverse edge of the transition area closest to the main viewing area: Points 3 and 3°: on the shortest center line of the specimen on, 30mm from the edge. Point 4: The maximum curvature point on the longest center line of the sample. Point 5: The minimum curvature radius at the corner or periphery of the sample, 30 mm from the edge. Transition area
Peripheral area
Transition area
Main area
Minimum width?cm
Minimum width 7cm
Maximum width 5cm
Zi border area
large width 5cm
Figure 1 area tempered glass sample impact point location 6.13.3 The impact point position of tempered glass
The impact point position is shown in Figures 2a, 2b and Figure 3. Point 1: The minimum curvature radius of the corner of the specimen, a point 30mm from the corner top along the corner bisector to the center, either left or right; Point 2: 30mm from the edge of the longest or shortest center line of the specimen, 382
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