GB/T 26443-2010 Safety colors and safety signs Classification, performance and durability of safety signs GB/T26443-2010 Standard download decompression password: www.bzxz.net
This standard specifies the relevant requirements for the safety sign performance classification system, and classifies the performance of safety signs according to the expected use environment, substrate, photometric properties, lighting method, installation method and surface characteristics of the safety signs. The relevant performance indicators and test methods specified in this standard are to accurately describe the various performance related to durability and expected service life when delivering products to purchasers. This standard does not apply to the performance of power supplies, power components and electric components of safety signs. This standard also does not apply to the performance of lighting components, but specifies the photometric properties of specific categories of safety signs.
This standard was drafted in accordance with the rules given in GB/T1.1-2009.
This standard adopts ISO17398:2004 "Safety colors and safety signs - Classification, performance and durability of safety signs" by redrafting method.
Compared with ISO17398:2004, the structural changes of this standard are as follows: the order of terminology items in ISO17398:2004 is adjusted.
The technical differences between this standard and ISO17398:2004 and their reasons are as follows: in order to adapt to China's technical conditions, the normative references in ISO17398:2004 are replaced by Chinese documents with consistent correspondence, and the corresponding replacement is reflected in the list of documents listed in Chapter 2 "Normative References" through the consistency degree mark. In addition, since GB/T15565 "Terms of Graphical Symbols" (all parts) covers the terms in ISO17724:2003, this standard replaces ISO17724:2003 with GB/T15565.
Compared with ISO17398:2004, this standard has been edited: the formats of Table 3, Table 4, Table 5, Table 6, Table 7, etc. have been adjusted.
This standard is proposed and managed by the National Technical Committee for Standardization of Graphic Symbols (SAC/TC59).
The drafting units of this standard are: China National Institute of Standardization, Institute of Geographical Names of the Ministry of Civil Affairs, Tianjin Fire Research Institute of the Ministry of Public Security, and Aviation Safety Technology Center of the Civil Aviation Administration of China.
The main drafters of this standard are: Zou Chuanyu, Bai Dianyi, Di Pingyuan, Yao Songjing, Chen Yongquan, Zhang Liang, and Liu Jiawei.
The following documents are indispensable for the application of this document. For any dated referenced document, only the dated version applies to this document. For any undated referenced document, the latest version (including all amendments) applies to this document.
GB/T2406.2 Determination of burning behavior of plastics by oxygen index method Part 2: Room temperature test (GB/T2406.2-2009, ISO4589-2:1996, IDT)
GB/T2423.55 Environmental testing for electric and electronic products Part 2: Environmental test test Eh: Hammer test (GB/T2423.55-2006, IEC60068-2-75:1997, IDT)
GB/T2893.1 Graphic symbols Safety colors and safety signs Part 1: Design principles for safety signs in workplaces and public areas (GB/T2893.1-2004, ISO3864-1:2002, MOD)
GB/T2918 Standard environment for conditioning and testing of plastic specimens (GB/T2918—1998, idtISO291:1997)
GB/T3920 Textiles - Tests for colour fastness - Colour fastness to rubbing (GB/T3920—2008, ISO105-X12:2001, MOD)
GB/T5169.10 Fire hazard tests for electric and electronic products - Part 10: Glow-wire/hot-wire basic test methods - Glow-wire apparatus and general test methods (GB/T5169.10—2006, IEC60695-2-10:2000, IDT)
GB/T5169.11 Fire hazard testing for electric and electronic products Part 11: Glow-wire/hot-wire basic test method Glow-wire flammability test method for finished products (GB/T5169.11—2006, IEC60695-2-11:2000, IDT)
GB/T6994 Definitions and general provisions for marine electrical equipment (GB/T6994—2006, IEC60092-101:2002, IDT)
GB/T9286 Cross-cut test for paint and varnish films (GB/T9286—1998, eqvISO2409:1992)
GB/T9754 Paints and varnishes Determination of specular gloss at 20°, 60° and 85° of paint films without metallic pigments (GB/T9754-2007, ISO2813:1994, IDT)
GB/T10125 Artificial atmosphere corrosion test Salt spray test (GB/T10125-1997, eqvISO9227:1990)
GB/T15565 (all parts) Graphic symbol terminology
GB/T16422.2 Plastics laboratory light source exposure test method Part 2: Xenon arc lamp (GB/T16422.2-1999, idtISO4892-2:1994)
GB/T16422.4 Plastics laboratory light source exposure test method Part 4: Open carbon arc lamp (GB/T 16422.4—1996, eqv ISO 4892-4:1994)
Foreword III
Introduction IV
1 Scope1
2 Normative references1
3 Terms and definitions2
4 Detailed requirements for categories of safety signs and their product descriptions2
4.1 Categories of safety signs2
4.2 Product description3
5 Performance requirements5
5.1 General requirements for safety signs5
5.2 Internally illuminated safety signs5
5.3 Weather resistance of outdoor safety signs6
5.4 Salt spray corrosion resistance of outdoor metal safety signs6
5.5 Phosphorescent safety signs 6
5.6 Retroreflective safety signs 6
5.7 Bond strength of safety signs fixed with pressure-sensitive adhesives 6
6 Optional performance requirements for safety signs 7
6.1 General requirements 7
6.2 Shrinkage resistance 7
6.3 Resistance to chemical agents 7
6.4 Impact resistance7
6.5 Abrasion resistance7
6.6 Water resistance7
6.7 Weather resistance of safety signs with external light source or internal and external light source8
7 Test methods8
7.1 Test sample and control sample8
7.2 Moisture and heat resistance test8
7.3 Weather resistance test8
7.4 Salt spray corrosion resistance test10
7.5 Impact resistance test10
7.6 Water resistance test11
7.7 Flame resistance test11
7.8 Surface adhesion test11
7.9 Abrasion resistance test11
7.10
7.11 Measurement of the photopic brightness of phosphorescent safety signs 12 7.12
Testing the adhesive properties of safety signs mounted with pressure-sensitive adhesive 14
7.13 Weathering resistance 15
7.14 Shrinkage 16
7.15 Resistance to corrosion by chemical agents 16
7.16 Resistance to abrasion 16
8 Marking and identification 16
8.1 Marking 16
8.2 Identification 17
9 Documentation and test report 17
9.1 Documentation 17
9.2 Test report 17
Appendix A (Informative) Impact resistance test tool 18
Figure 1 Example of impact position 11
Figure A.1 Spring hammer test device 18
Table 1 Categories of safety signs 3
Table 2 Luminance blanking performance of phosphorescent safety signs 6
Table 3 Classification of peel strength and shear strength 7
Table 4 Conditions for accelerated weathering test using open carbon arc lamp 9
Table 5 Conditions for accelerated weathering test using condensation 9
Table 6 Conditions 1 for artificially simulated weathering test using xenon arc lamp 10
Table 7 Conditions 2 for artificially simulated weathering test using xenon arc lamp 10
Table 8 Climate conditions 15
Table 9 Reagents 16

ICS 01, 080. 01
National Standard of the People's Republic of China
GB/T26443—2010
Safety colours and safety signs
Safety colours and safety signs-Classification, performance and durability of safety signs (ISO 17398:2004, MOD)
2011-01-14 Issued
General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China Standardization Administration
2011-08-01 Implementation
Normative references
Terms and definitions
4 Detailed requirements for categories of safety signs and their product descriptions 4.1 Categories of safety signs
4.2 Product descriptions
5 Performance requirements
General requirements for safety signs
5.2 Internally luminous safety signs
5.3 Weather resistance of outdoor safety signs
5.4 Salt spray corrosion resistance of outdoor metal safety signs5.5 Phosphorescent safety signs.
5.6 Retroreflective safety signs
5.7 Adhesion strength of safety signs fixed with pressure-sensitive adhesive
6 Optional performance requirements for safety signs
·General requirements
Shrinkage resistance
Resistance to chemical reagents
Impact resistance
Abrasion resistance
Water resistance
Weather resistance test method for safety signs with external light source or internal and external light source
Sample and control sample
Mixed heat resistance test
Weather resistance test
Salt spray corrosion resistance test
Impact resistance test,
Water resistance test··.
Flammability resistance test
Surface adhesion test
Abrasion resistance test
Scratching test
Measurement of photopic brightness of phosphorescent safety signs
GB/T 26443--2010
GB/T26443—2010
Test of bonding properties of safety signs installed with adhesive Weather resistance
Resistance to chemical agents
Abrasion resistance
8 Marking and identification
8.1 Marking
8.2 Identification
9 Documents and test reports
9.1 Documentsbzxz.net
9.2 Test reports
Appendix A (informative)
Figure 1 Example of impact position||tt| |Impact resistance test tool
Figure A.1 Spring hammer test device
Table 1 Category of safety signs
Table 2 Brightness blanking performance of phosphorescent safety signsTable 3 Classification of peel strength and shear strength
Table 4 Conditions for accelerated weathering test of open carbon lamp typeTable 5 Conditions for accelerated weathering test of condensation type-Table 6 Conditions for artificial simulated weathering test of xenon arc lamp-Table 7 Conditions for artificial simulated weathering test of xenon arc lamp II
Table 8 Climate conditions
This standard was drafted in accordance with the rules given in GB/T1.1-2009. GB/T 26443—2010
This standard adopts the redrafting method to revise and adopt IS017398:2004 Safety colors and safety signs - Classification, performance and durability of safety signs".
Compared with IS017398:2004, the structural changes of this standard are as follows: the order of the terminology items in IS(>17398:2004 has been adjusted.
The technical differences between this standard and 15017398:2004 and their reasons are as follows: In order to adapt to the technical conditions of my country, the specifications in ISO17398:2004 are revised. The normative reference documents are replaced by Chinese documents with consistent correspondence. The corresponding replacement is reflected in the list of documents listed in Chapter 2 "Normative Reference Documents" through consistency mark. In addition, since GB/T15565 "Graphic Symbol Terminology (All Parts)" covers the terms in ISO17721:2003, this standard replaces ISO17724:2003 with GB/T15565. Compared with 1S017398:2004, this standard has made editorial changes: the formats of Table 3, Table 4, Table 5, Table 6, Table 7 and other tables have been adjusted. This standard The standard was proposed and coordinated by the National Technical Committee for Standardization of Graphic Symbols (SAC/TC59). The drafting units of this standard are: China National Institute of Standardization, Institute of Geographical Names of the Ministry of Civil Affairs, Tianjin Fire Research Institute of the Ministry of Public Security, and Aviation Safety Technology Center of the Civil Aviation Administration of China. The main drafters of this standard are: Zou Chuanyu, Bai Dianyi, Di Pingyuan, Yao Songjing, Chen Shuiquan, Zhang Liang, and Liu Jiawei. GB/T26443—2010 The purpose of formulating this standard is to provide manufacturers (suppliers) and buyers of safety signs with a basis for negotiation and determination of safety sign performance parameters. . During the expected life of the safety sign, the agreed performance parameters must remain stable. This standard requires manufacturers (suppliers) to classify their products and provide detailed product descriptions. Manufacturers (suppliers) and purchasers can clarify their requirements for products from the perspective of performance level or expected use environment. The promotion and implementation of this standard will help to better implement the requirements in the text and provide a deeper understanding of the performance of various safety signs used.
1 Scope
Safety colors and safety signs
Classification, performance and durability of safety signs CB/T 264432010
This standard specifies the relevant requirements for the safety sign performance classification system. The performance of safety signs is graded according to the expected use environment, substrate, photometric properties, lighting method, installation method and surface characteristics of the safety signs. The relevant performance indicators and test methods specified in this standard are to accurately describe the various performance related to durability and expected service life when delivering products to purchasers. This standard does not apply to the performance of power supplies, power components and electric components of safety signs. This standard also does not apply to the performance of lighting components, but specifies the photometric homogeneity of specific categories of safety signs. 2 Normative references
The following documents are indispensable for the application of this document. For all dated references, the version with the date applies to this document. For all undated references, the latest version (including all amendments) applies to this document. CB/T2406.2 Determination of burning behavior of plastics by oxygen index method Part 2: Temperature test (GB/T2406.220091S04589-2:1996.IDT
GB/T2423.55 Environmental testing for electrical products Part 2: Environmental test test Eh: Hammer test (CB/T2423.55-2006.IEC 60068-2-75:1997.IDT)GB/T2893.1 Graphic symbols Safety colors and safety signs Part 1: Design principles for safety signs in workplaces and public areas (GB/T2893.1—2004.ISO3864-1:2002.M0D)GB/T2918 Standard environment for conditioning and testing of plastic specimens (GB/T2918—1998, dtIS0291:1997) Textiles Color fastness test Color fastness to rubbing (GB/T3920-2008, IS0105-X12:2001, GB/T3920
GB/T5169.10 Fire hazard test for electric and electronic products Part 10: Glow wire/hot wire basic test method Glow wire device and general test method (CB/T5169.10-2006, IEC60695-2-10:2000, IDT) GB/T5169 .11 Fire hazard test for electrical products Part 11: Glow-wire/hot-wire basic test method Glow-wire flammability test method for finished products (GB/T5169.112006, IEC60695-2-11:2000, IDT) CB/T6994 Ship electrical equipment: Definitions and general provisions (GB/T6994-2006.IEC60092-101:2002, IDT) GB/T9286 Paint and varnish Scratching test of film (GB/T9286-1998egV1S) 2409:1992) GB/T9754 Determination of 20°60° and 85° specular selectivity of paints and varnishes without screen pigments (GB/T$754-2007.ISO2813:1594.IDT) GB/T10125 Artificial atmosphere corrosion test Salt burial test (GB/T10125-:1997,eqVI509227:1990）GB/T15565 (all parts) Graphical symbols GB/T16422.2 Plastics laboratory light source exposure test method Part 2: Xenon arc lamp (GB/T16422.2---1999idtIS04892-2;1994)
GB/T 16422.4 Plastics laboratory light source exposure test method Part 4: Open carbon arc lamp (GB/T 16422.4-1996eqvIS4892-4:1994)
CB/T 26443--2010
GB/T23809 Principles and requirements for setting up emergency guidance systems (GB/T23809-2CC9, IS () 16069: 2004, MOD) ISO554 Standard atmosphere for randitioning and/or testing —Specifications
IS04046-4: 2002 Paper, hoard, pulps and related tertns-Vocabulary-Part 4: Paper and board grades and converted products
IS () 7784-3 Paints and varnishes—De-termination of resistance to ahrasion Part 3.Reciprocating test panel method CIE 15.2 Colorimetry) CIE 69 Methods of characterizing illuminance meters and luminance meters: performance, characteristics and specifications (Methods of characterizing illuminance meters and luminance meters performance, characteristics and specifications) 3 Terms and definitions
GB/T15565 defines and the following terms and definitions apply to this document. 3.1
Ordinary safety signs ardinary safety signs are safety signs that are neither retroreflective nor phosphorescent. 3.2
Phosphorescent safety signs phosphorescent safety signs are safety signs that use phosphor as a coating and can continue to emit light after the excitation energy is removed. Note: According to the luminescence mechanism, phosphorescent safety signs are also called photoluminescent safety signs and photoluminescent safety signs. 3.3
Retroreflective safety signs retrorelective safety signs are safety signs made of retroreflective materials, that is, materials that reflect light in the opposite direction of the incident light as the base material. 3. 4
Expected service life The time during which the safety sign marked by the manufacturer (supplier) maintains its classification and performance. 3.5
Pressure-sensitive adhesive Pressure-sensitive adhesive Adhesive that bonds two surfaces by pressing.
4 Detailed requirements for categories of safety signs and their product descriptions 4.1 Categories of safety signs
Safety signs should be classified according to Table 1.
Note: The application of categories of safety signs in marking is shown in Chapter 8. 1) GB/T4587-2007 has been modified to adopt ISO4046:2002, but has not adopted IS01046-4,2C022
Use environment
Resistance (R)
Flexibility (F)
Photometric properties
Lighting method
Installation method
Indoor (I)
Plastic ()
Pigment (P)
External (E)
Mechanical (M)
High gloss (H) )
The classification of the use environment is
Table 1 Category of safety signs
Outdoor (E)
Metal (M)
Retroreflection (R)
Internal reflection (T)
H sensitive cavity (P)
Medium gloss ()
Special (S>
Other<0)
Ordinary (0)
Interior and exterior (B)
Optional-(A)
Gloss (L)
GB/T 26443—2010
Related clauses
4. 2, 2.5. 3.5, 4.7. 3.7. 4
4, 2. 3,5. 4,7. 4
4. 2. 3. 3.5. 3.5. 5.5. 6,7, 3,7. 114. 2. 4,5. 2.7. 11
4.2. 5.5. 7,7. 12
1: Usually applicable to environments with room temperature of 1°C to 30°C and subject to limited degradation conditions. The causes of degradation include collision, abrasion, short-term temperature changes exceeding the above temperature values, ultraviolet radiation or corrosive gases. Generally speaking, it can be cleaned regularly with a non-corrosive detergent. Safety signs:
E: The applicable climatic conditions include seasonal and monthly temperature and humidity changes, such as sunlight, wind, etc. The climatic conditions can also be described in detail, such as "northern hemisphere" and "tropical", and the special global use environment specified in the design can also be supplemented: S: Usually applicable to non-class I or E use environments, or, although it is a class I and E use environment, it emphasizes the special performance of the product. b The definitions of phosphorescent, retroreflective and general safety signs are shown in Chapter 3. 4.2 Product Description
4. 2. 1 General Requirements
Safety signs should be accompanied by product descriptions, and the product descriptions supplement the information on the classification of safety signs according to Table 1. 4. 2.2 Usage Environment
The product description shall describe the usage environment of the safety sign in detail, especially the special usage environment in Table 1. 4.2.3 Substrate and Structure
4.2.3.1 Description of Substrate and Structure
The product description shall describe the characteristics of the product substrate in detail. The description of the material structure shall include multi-layer materials (multi-layer materials are composite). The product description of multi-layer materials shall describe the preparation method and bonding method of the optical layer. The product description shall describe the surface characteristics of the material and other special protections that the material has. If the safety sign is phosphorescent (P) or retroreflective (R), the product description should describe the structure of the retroreflective layer and the protection it has. The product description should describe the consistency of the surface of the photometric layer and indicate the locations that do not have photometric properties (such as edges). 4.2.3.2 Physical properties of substrates and safety signs The product description should describe in detail the following physical properties of the materials used to make the safety sign, and their physical properties should be determined according to the corresponding test methods:
…Thickness;
—Size:
—Density:
GB/T2 6443—2010
Tensile strength, elongation at break, elongation at break; - tear strength of flexible materials,
- peel strength of multilayer composite materials.
After testing in accordance with the requirements of 7.10, the product description shall describe the secondary classification of the safety sign substrate, i.e. R (rigid) or F (multiplicity). Materials that meet the following conditions shall be classified as R (rigid): When the temperature is 23℃±2, one end of a 50mm wide strip is firmly fixed on a horizontal surface and under its own weight, it will be at least 200 Materials that meet the following conditions should be classified as F (flexible): When the temperature is 23°C ± 2°, a 50 mm wide strip of material is firmly fixed at one end on a horizontal plane. Under its own weight, at least 200 mm of the other end sags at an angle greater than 5° and at least 300 mm of the other end sags at an angle greater than 15°. 4. 2, 3, 3 Photometric properties The appearance of the printed surface of the safety sign should be described when the product is delivered. The product description should describe the reprocessing method, that is, the method of printing graphic elements, symbols, safety colors and contrast colors on the material surface, and should specify whether the above elements are processed on the surface or sub-surface. The product description should describe the color development and photometric properties, and in accordance with GB/T2893.1 Measure and check the chromaticity and photometric properties. The product description of phosphorescent safety signs shall describe the color of the phosphorescence. The color of the phosphorescence shall be determined based on the radiance spectrum of the phosphorescent safety sign within 5 minutes after being excited by the light source tested (see 7.11.5.2a) and its relationship with the standard color vividness. The test method is shown in CIE 15.2. The product description shall include the test results according to 7.3, as well as detailed test conditions (including any differences from the conditions specified in 7.3):
For safety signs classified as P (phosphorescent) according to 4.1, the product description shall include the secondary classification of brightness blanking (see 5.5). The secondary classification of brightness blanking shall constitute the product classification together with the main classification of photometric attributes, such as PA, PR, PC or PD. Retroreflective safety signs shall be classified as secondary (i.e. RI or R2) according to the properties at the time of delivery in accordance with GB/T 2893.1.
4.2,4 Illumination mode
Because the light source has special requirements for the light source, the light source will cause special luminance conditions, which may in turn affect the chromaticity and light properties of the safety sign. The temperature resistance is affected, so the product description of the internal luminous safety sign should describe all special temperature conditions that may occur in the environment of use.
The manufacturer (supplier) of phosphorescent safety signs should explain the brightness blanking performance of the product. The information on brightness blanking performance should at least include the photopic brightness blanking performance under different lighting levels and different light sources specified in 7.11.5.2. If it is to describe the optional performance in 4.2.6, or the product is used for safety signs or emergency guidance elements specified in GB/T23809, the product description should include the time for the brightness to decay to 3mcd/m and 2mcd/m (tested under the excitation conditions in 7.11.5.1 and 7.11.5.2 respectively). 4.2.5 Installation method||t t||The product description should describe one or more recommended installation methods for the safety sign. When the safety sign is delivered as a whole with a pressure-sensitive adhesive (P), the type of pressure-sensitive adhesive should be described according to the following performance description. The type of pressure-sensitive adhesive should be determined according to the situation. The type of pressure-sensitive adhesive may be a combination of one or more of the following categories: Permanent (P): Permanent pressure-sensitive adhesive can be bonded to a fixed position throughout its service life; Peelable (R): Peelable pressure-sensitive adhesive allows the sign to be easily peeled off within the specified service life without damaging the bonded surface.
Removable (M): Removable pressure-sensitive adhesive allows the sign to be moved from one surface to another and reused many times without adverse effects;
Special (S): Special pressure-sensitive adhesive is used for rough surfaces. , non-polar surface or low surface energy base; - Low temperature (L): Low temperature pressure sensitive adhesive is used in environments with a minimum temperature of 4°C: - Ultra-low temperature (V): Ultra-low temperature pressure sensitive adhesive is used in environments with a temperature below 4°C. The temperature limit can be specified according to the requirements.
GB/T26443—2010
For safety signs installed with pressure sensitive adhesive (installation method P> in 4.1, the product description shall include the secondary classification of bonding strength (see 5.7). The manufacturer <supplier) shall explain the correct storage method of the safety sign before installation, other service and maintenance requirements, etc. 4.2.6 Optional performance description
When the safety sign has one or more optional performances in Chapter 6, the product description shall explain the optional performance. 5 Performance requirements
5.1 General requirements for safety signs
5.1.1 Flame resistance
When tested in accordance with one of the test methods in 7.7, safety signs made of materials other than metal, glass or ceramics shall meet the following relevant performance requirements according to the test method adopted: oxygen index not less than 26 (see 7.7.2),
—— pass the 850℃ glow wire test (see 7.7.3); — be classified as non-flammable (see?..4). 5.1.2 Moisture and heat resistance
After testing the safety sign specimens in accordance with 7.2, observe the specimens visually and compare them with new control specimens that have been tested. After the test, the materials and (or) graphic elements of the specimens shall have no obvious dents, separation, cracks, powdering, swelling, surface peeling, blistering, flaking, large scratches or cracks.
5.1.3 Friction resistance
After testing the safety sign sample in accordance with 7.16, observe the sample with the naked eye and compare it with the new control sample that has not been tested. After the test, the material and (or) graphic elements of the sample should have no obvious marks, separation, cracks, powdering, expansion, surface peeling, leakage, flaking, large scratches or cracks.
5.1.4 Surface printing adhesion
When tested in accordance with 7.8, there should be no obvious marks on the pressure-sensitive adhesive tape. 5.1.5 Gloss
When tested in accordance with GB/T 9754 When the surface gloss of the safety sign is measured under 60° geometry, the surface with safety color shall be divided into the following three categories: - High gloss (H): > 75 units;
- Medium gloss (1>): 50 units to 75 units; - Low gloss (L): ≤ 50 units.
5.2 Internally illuminated safety signs
After testing the safety signs at the temperature given in Table 8 of 7.13 or the maximum operating temperature given in the product instructions, observe the samples with the naked eye and compare them with new control samples that have not been tested. The materials and (or graphic elements of the tested samples shall have no obvious indentations. Separation, cracks, powdering and swelling, surface peeling, blistering, flaking, large scratches or cracks. 5
GB/T26443---2010
5.3 Weather resistance of outdoor safety signs
After testing according to one or more test methods given in 7.3, according to the provisions of 7.3 or according to the existing agreement between the manufacturer (supplier) and the purchaser, the photometric properties of the safety signs during the test period shall comply with the limited range of photometric values ​​and chromaticity coordinates in GB/T2893.1 and the relevant requirements for secondary classification in 5.5. Observe the sample with the naked eye, And compare with the new untested control sample. After the test, the material and (or) graphic elements of the sample should have no obvious marks, separation, cracks, powdering, expansion, surface peeling, blistering, flaking, large scratches or cracks. 5.4 Salt spray corrosion resistance of outdoor metal safety signs After the safety sign samples are tested for 100 hours in accordance with 7.4, observe the samples with the naked eye and compare with the new untested control sample. The material and (or) graphic elements of the test sample should have no obvious marks, separation, cracks, powdering, expansion, surface peeling, blistering, flaking, large scratches or cracks. || tt||Safety signs used in special use environments (S) shall also meet this performance requirement, but are limited to special outdoor environments (E). 5.5 Phosphorescent safety signs
When conducting the test in 7.11, the minimum brightness of safety signs classified as phosphorescent (P) in accordance with 4.1 shall comply with the requirements of one of the four level classifications in Table 2. Both the phosphorescent classification and the secondary classification shall remain unchanged after completing the test in 7.3. Table 2 Brightness blanking performance of phosphorescent safety signs Primary classification
5.6 Retroreflective safety signs
Blanking time 2min
Minimum charge/(cd/ Safety signs (R) classified as retroreflective in 4.1 shall be classified as R1 or R2 in accordance with GB/T 2893.1 according to their photometric properties. Both the retroreflective classification and the secondary classification shall remain unchanged after the test in 7.3. 5.7 Bond strength of safety signs fixed with pressure-sensitive adhesive When testing safety signs installed with pressure-sensitive adhesive (installation method P in 4.1) in accordance with 7.12, the secondary classification of the bonding properties shall be divided according to Table 3 according to the type of safety sign substrate (rigid or flexible). When the shear strength of rigid materials is tested in accordance with 7.12.4, the test results shall be classified as follows:
a) When a 10√ weight is attached, if any of the three specimens fails to bond, the shear strength shall be classified as "0"; b) When a 10 N weight is attached, if all three specimens are firmly bonded, the shear strength shall be classified as \N\; c) When a 50 N weight is attached, if any of the three specimens fails to bond, the shear strength shall be classified as \V\; d) When a pull weight is attached, if all three specimens are firmly bonded, the shear strength shall be classified as "H\. 6
Peel strength of flexible materials
N (per 25 mm width)
10≤WA13
7≤<10
6 Optional performance requirements for safety signs
6.1 General requirements
Table 3 Classification of peel strength and shear strength
GB/T 26443—2010
Shear strength of brush-type materials
N (per 25mm×25mm area)
According to the specific use environment, the safety signs shall meet the performance requirements in 6.2~6.7. 6.2 Shrinkage resistance
After testing the safety sign samples in accordance with 7.14, the shrinkage rate of the samples shall not exceed 5%. 6.3 Resistance to abrasion by chemical agents
After testing the safety sign samples in accordance with 7.15, observe the samples with the naked eye and compare them with new control samples that have not been tested. After the test, the materials and (or) graphics of the samples shall be free of obvious dents, separation, cracks, powdering, expansion, surface peeling, blistering, flaky residue, large scratches or cracks.
6.4 Impact resistance
Test the safety sign sample with impact energy according to 7., where the impact energy value used is 0.5N·Ⅱ or the value agreed upon by the manufacturer (supplier) and the purchaser according to 7.5. Under the test conditions agreed upon by both parties, the safety sign should have only slight dents and no other damage to its surface or graphic elements. 6.5 Abrasion resistance
Perform 600 reciprocating motion tests on the safety sign sample according to 7.9, observe the sample with the naked eye, and compare it with a new untested control sample. After the test, the material and (or graphic elements of the sample) should have no obvious dents, separation, scratches, powdering, expansion, surface blistering, flaking, large scratches or cracks. 6.6 Water resistance
After testing the safety sign sample according to 76, observe the sample with the naked eye and compare it with a new untested control sample. After the test,
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