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Article 4.1 and Chapter 5 are compulsory and others are recommended.
This standard doesn't completely match Uniform Provisions on Safety Glazing Materials (ECER43-2000) of the Economic Commission for Europe. Major technical differences include:
---This standard has no provision on the plastic safety materials and treated laminated-glass.
---ECER43 states that the laminated-glass on the windscreen shall meet requirements on product head-form model impact and specimen head-form model impact tests.
This standard states that the laminated-glass of the windshield can meet only one of the said two head-form model impact test requirements.
---In this standard, the speed of the fire-resistance test on the plastic-glass composite is reduced to 100mm/min.
This standard shall replace the Safety Glazing Materials Used on Road Vehicles (GB9656-1996). Key technical differences compared with GB9656-1996 include:
---Explanations to terms in Chapter 3 have been canceled. All terms shall adopt the term standard concerning glass on road vehicles and road vehicles.
---No classification of A and B-class laminated-glass has been included. Both classes of glass are called laminated-glass.
---Zone tempered glass shall be used on the restrictively-applied windshield.
---Plastic-glass composites used on the windshield and others.
---Insulated safety glass used on objects beyond windshields is added.
---It is allowed that the autocar with the hourly speed lower than 40km/h can adopt the tempered glass to the windshield.
---Requirements on the quality of the original film used for producing safety glazing material for road vehicles have been provided.
---The high temperature resistance test, fire-resistance test, resistance-to-chemicals test on the plastic-glass composites has been added.
---Clauses on general technical requirements have been added.
Annex A is a normative.
This standard is put forward by the Original State Bureau of Building Materials Industry.
It is supervised by National Automotive Standardization Technical Committee Safety Glass Branch Committee.
This standard is drafted by the Institute of Glass Science % Special Glass Fiber of China Building Materials Academy.
Main Rapporteur:Yang Jianjun, Mo Jiao, Shi Xinyong, Han Song, Wang Wenbiao, Zhang Dashun, Gong Rui, Zhou Junyan.
The editions of replaced standards issuance conditions:
--- GB 9656-1988, GB 9656-1996.
Safety Glazing Materials for Road Vehicles
汽車安全玻璃
1. Scope
This standard has stated the classification, technical specifications, testing method, test rules, packaging, signs, transportation and storage of the safety glazing materials used for road vehicles.
This standard is applicable to safety glass used on automobiles as well as on farm trucks and other road vehicles.
2. Normative References
The following normative documents contain provision which, through reference in this text, constitute provisions of this national standard. For dated reference, subsequent amendments to, or revisions of, any of these publications do not apply. But the parties to agreements based on this standard are encouraged to investigate the possibility of applying the latest editions of the standards indicated below. For undated references, the latest edition of the normative document referred to applies.
GB/T 1216 External Micrometer (GB/T 1216-1985, neq ISO 3611-78)
GB/T 5137.1 Test Methods of Safety Glazing Materials Used on Road Vehicles Part 1: Mechanical Properties Test (GB/T 5137.1-2002, ISO 3537-1999, MOD)
GB/T 5137.2 Test Methods of Safety Glazing Materials Used on Road Vehicles Part 2: Optical Properties Test (GB/T 5137.2-2002, ISO 3538:1997, MOD)
GB/T5137.3 Test Methods of Safety Glazing Materials Used on Road Vehicles Part 3: Radiation, High Temperature, Humidity, Fire and Simulated Weathering Resistance Tests (GB/T 5137.3-2003, ISO 3917:1999, MOD)
GB 8410 Flammability of Automotive Interior Materials
GB 11614 Float Glass
GB/T 17339 Safety Glazing Materials for Road Vehicles - Testing Method for Resistance-to Chemicals and Resistance-to-Temperature Change
GB/T 18144 Test Method on Glass Stress
GB 18045-2002 Safety Glass Used on Railway Vehicles
JC/T 512 Packing of Safety Glazing Materials for Road Vehicles
3. Classification
3.1 Classification according to Processes
a) laminated-glass;
b) Zone tempered glass;
c) Tempered glass;
d) Insulated safety glass;
e) plastic-glass composite.
3.2 Classification according to Application Parts
3.2.1 Windscreen;
a) laminated-glass: applicable to all motor vehicles;
b) Zone tempered glass: applicable to motortrucks (N-class automobiles) that are not for holding people; in applicable to sedans and passenger cars that are for holding persons.
c) plastic-glass composite: applicable to all motor vehicles.
d) Tempered glass: applicable to motor vehicles with the designed hourly speed lower than 40km/h.
3.2.2 Glass for Parts except Windshields
a) laminated-glass: applicable to all motor vehicles;
b) tempered glass: applicable to all motor vehicles;
c) insulated safety glass: applicable to all motor vehicles;
d) plastic-glass composite: applicable to all motor vehicles.
Note: parts except the windshield include the car door, corner window, side window, back light and transom light.
4. General
4.1 Sections for producing safety glass for automobiles shall be in accordance with requirements on automobile-class glass stated in GB 11614.
4.2 Technical specifications include key technical specifications and general technical specifications. Key technical specifications are safety performance indices and shall be in accordance with provisions stated in relevant clauses. General technical specifications shall have the testing items negotiated by the supply and demand parties.
5. Key Technical Specifications
Key technical specifications of safety glass used on different parts of the automobiles shall be in accordance with Table 1. The insulated safety glass shall be composed of safety glazing materials that are in accordance with requirements stated in this standard.
Table 1 Key Technical Specifications and Testing Methods
Test Windshield Others Testing Method
Laminated-glass Zone Tempered Glass Plastic-glass Composite Tempered Glass Laminated-glass Tempered Glass Plastic-glass Composite Insulated Safety Glass
Thickness 5.1 5.1 5.1 5.1 5.1 5.1 5.1 5.1 7.1
Visible Light Luminous Transmittance 5.2 5.2 5.2 5.2 5.2 5.2 5.2 5.2 7.2
Deviation of Secondary Image 5.3 5.3 5.3 5.3 7.3
Optical Distortion 5.4 5.4 5.4 5.4 7.4
Color Identification 5.5 5.5 5.5 5.5 7.5
Abrasion Resistance 5.6 - 5.6 5.6 5.6 7.6
Heat Resistance 5.7 5.7 5.7 5.7 7.7
Radiation Resistance 5.8 5.8 5.8 5.8 7.8
Humidity Resistance 5.9 - 5.9 5.9 5.9 7.9
Head-form Model Impact 5.10 5.10 5.10 5.10 5.10 5.10 7.10
Penetration Resistance 5.11 5.11 7.11
Impact Resistance 5.12 5.12 5.12 5.12 5.12 5.12 7.12
Fragment State 5.13 5.13 5.13 7.13
Temperature-change Resistance - - 5.14 5.14 7.14
Fire Resistance - 5.15 5.15 7.15
Resistance to Chemicals 5.16 5.16 7.16
5.1 Thickness Deviation
The test shall be carried out according to 7.1. The thickness and its deviation of the product shall be in accordance with Table 2.
Table 2 Thickness and Thickness Deviation (in mm)
Classification Engineering Thickness (t) Thickness and Deviation
Laminated-glass Total thickness of the section glass and interlayer t±0.2n
Plastic-glass Composite Total thickness of the section glass, plastic materials and interlayer t±0.2n
Zone Tempered Glass t t±0.2
Insulated Safety Glass Total thickness of the safety glass composing the insulated safety glass and the interlayer The thickness and deviation of the safety glass for the insulated safety glass shall be in accordance with the said requirements.
Note: n is the layer number of the section glass for the laminated-glass or the plastic-glass composite.
