GB 31887-2015 English PDF

GB 31887-2015: [GB/T 31887-2015] Cycles -- Retro-reflective devices
Delivery: 9 seconds. Download (& Email) true-PDF + Invoice.
Get Quotation: Click GB 31887-2015 (Self-service in 1-minute)
Historical versions (Master-website): GB 31887-2015
Preview True-PDF (Reload/Scroll-down if blank)

GB 31887-2015
Cycles.Retro-reflective devices
ICS 43.150
Y14
National Standards of People's Republic of China
Bicycle reflecting means
(ISO 6472-2. 1985, Cycles-Lightingandretro-reflectivedevices-
Part 2. Retro-reflectivedevices, IDT)
Published 2015-09-11
2016-10-01 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China issued
Table of Contents
Preface Ⅰ
1 Scope 1
2 Normative References 1
Terms and definitions 1 3
Application 1 4 symbols and units
Optical claim 3 5
5.1 reflector 3
5.2 retroreflection tire 4
6 chromaticity requirements 4
7 Physical Requirements 5
7.1 reflectors 5
Tire 6 7.2 retroreflection
Test 8 optical reflector 8
8.1 Principle 8
8.2 Test apparatus arrangement 8
The light source 8 8.3
8.4 Receiver 9
9 viewing distance 8.5
8.6 reflector bracket (or brackets) 9
8.7 Test area reflector 9
8.8 illumination reflector 9
8.9 the directional reflector 9
9 retro-reflective optical test tire 9
9 9.1 Test Equipment arrangement
The light source 9 9.2
9.3 Receiver 9
9.4 illumination distance and the viewing distance 10
9.5 illumination reflection band 10
9.6 Test Method 10
10 color test 10
Measurement instrument 10 10.1
Visual comparison 10 10.2
10.3 Selection Method 10
11 marks 10
Foreword
This standard Chapter 5, Chapter 6, Section 7, 8.2,8.3,8.4,8.5,8.7,8.8,9.2,9.3,9.4,9.5, mandatory Chapter 11,
The rest is recommended.
This standard was drafted in accordance with rules GB/T 1.1-2009 given.
This translation method using identical with standard ISO 6742-2. 1985 "Bicycle lighting and optical reflecting means and the second physical requirements
Part. reflecting means. "
This standard made the following editorial changes.
--- is consistent with existing standard series, the standard name to "bicycle reflecting means";
--- For ease of use and more intuitive to reflect the colors of the reflector optics required technical parameters, based on ISO 6742-2. 1985
5.1 provisions clause 5.1 of this standard yellow reflector increases light intensity coefficient table 2 and the red reflection light intensity coefficient
Table 3, so the number of the table have been adjusted after it (see Chapter 5, Chapter 6, Section 7);
--- ISO 6742-2. 1985, clause 7.2.2.9 version cited "3.2" as a clerical error, this standard has been corrected to reference "5.2."
Consistency correspondence relationship with the international standard in normative documents referenced in our files are as follows.
Safety requirements for bicycles --- GB 3565-2005 (ISO 4210.1996, IDT);
--- GB/T 3977-2008 color representation (CIE15.2004, NEQ);
--- GB/T 3978-2008 and geometric standard illumination conditions (CIE15.2004, NEQ);
--- Measurement GB/T 3979-2008 object colors (CIE15.2004, NEQ).
Please note that some of the content of this document may involve patents. The issuing authority of this document does not assume responsibility to identify these patents.
The standard proposed by China Light Industry Federation.
This standard by the National Standardization Technical Committee bicycle (SAC/TC155).
This standard is drafted. Kunshan City Jinxi Plastic Products Co., Sate-Lite (Foshan) Co., Ltd. plastic products.
Participated in the drafting of this standard. National Cycling Center for Standardization, Jiangsu Inspection and Quarantine bike testing center, opened in Tianjin New Technology SG
Development Corporation, Howard plastic Shanghai United States and Plastics Co., Ltd., Ningbo, HUA Hong Plastics Co., Ltd., Yantai Changhong Plastic Products Limited
Secretary, CE Rubber Co., Ltd. Shenzhen Hi Dresdner Bicycle Co., Ltd. Jiangsu new electric car, Giant (Tianjin) have
Limited, Hangzhou far photoelectric information Limited.
The main drafters. Zhang Yongqing, Tang Xianshi, Liang Wenbo, Lu Jun, Yan Dejun.
Bicycle reflecting means
1 Scope
This standard specifies the physical and optical requirements of the reflecting means bicycle.
This standard applies to ride on public roads, in particular in accordance with ISO 4210 requirements reflecting means producing a bicycle used.
2 Normative references
The following documents for the application of this document is essential. For dated references, only applies to the version dated paper
Pieces. For undated references, the latest edition (including any amendments) applies to this document.
ISO 3768 metal plating neutral spray test (NSS Test) [Metaliccoatings-Neutralspraytest (NSS
test)]
ISO 4210 two bicycles bicycle safety requirements (Cycles-Safetyrequirementsofbicycles)
IEC publication No.50 (45) International Electrotechnical Vocabulary lighting (InternationalElectrotechnicalVocabulary-
Lighting)
CIE Publication No.15 colorimetric (Colorimetry). International Commission on Illumination (IEC ) official recommended the file
3 Terms and Definitions
IEC Publication No.50 (45) define the following terms and definitions apply to this document.
3.1
Reflecting means retro-reflectivedevice
Reflector reflector
You can reply by one or more light reflecting units of readily available components.
3.2
Wide-angle reflectors wideanglereflector
Means for retroreflection sides of the axis from the reference level is not less than 50 ° angle of incidence of light can be made.
3.3
Common reflector conventionalreflector
Means for retroreflection sides of the axis from the reference level is not less than 20 ° angle of incidence of light can be made.
4 Application symbols and units
The following symbols and units apply to this document. see picture 1.
Note 1. The following symbols are predetermined in accordance with a UN/ECE No.3 about return reflection means).
1) see document E/ECE324-E/ECE/T RANS/505- Appendix 2/correction 1, No.3 states. reflecting means on the vehicles and their trailers
Terms of unity.
FIG 1 illustrates the application symbols
A. Reply effective area of the reflecting surface means, unit. cm2;
C. reference center;
NC. the reference axis;
Rr. a receiver, the visualizer or measurement devices;
CR. receiving center;
φR. Rr If the receiver is circular, its diameter means, unit. cm;
Se. a light source;
Cs. the light source center;
φS. a light source diameter, unit. cm;
De. Distance from the center of the light source to the reference center C Cs, unit. m;
D'e. the distance from the receiver to the reference center CR center C, unit. m;
Note 2. In general De and D'e is almost the same, as viewed under normal circumstances, it can be assumed to De = D'e. In order to achieve artificially increased measured
When the amount of the targeting system used from the effective distance may be employed.
D. The average diameter of the return reflected on the reflection of the tire ring, unit. mm;
α. angle of observation;
β. the angle of incidence. Given CsC always considered as horizontal straight line, so that when the reflection means for, in accordance with the NC axis with respect to the light source Se
Line position, the incident angle is defined as the symbol. is a left (-), the right is (), of the (), is lower (-). Angle may be in any direction
Is determined by two angles, i.e., the vertical angle and the horizontal angle, vertical angle is always EDITORIAL;
γ. see Rr is the aperture angle of the receiver from the point C;
δ. Se aperture angle of the light source seen from point C;
ε. the rotation angle. Facing the illuminated surface, when rotated clockwise, the rotation angle is positive; the words reflecting means if labeled "TOP" (on), and
This positive discharge of the word as a starting position.
Note 3. All angles are in degrees, minutes to FIG.
E. illuminance return reflection means, unit. lx;
CIL. intensity factor, Unit. mcd/lx.
Optical claim 5
Reflector 5.1
When tested by the method specified in clause 8, the light intensity coefficient reflector (the CIL) of not less than Table 1 or Table 2, Table 3, Table 4, a predetermined
Value.
Table 1 is applied to the front reflector, the values listed in the side reflector and the back reflector is a transparent (white) value reflector. Yellow reflection
Is the value of 5/8 should be transparent reflector (see Table 2), the value of the red of the reflector should be transparent reflector 1/4 (Table 3).
Table 4 apply to pedal reflector.
Table 1 Transparent intensity coefficient reflector (the CIL) in units of milli candela per lux
The observation angle α
The angle of incidence β
Vertical. 0 °
Levels. 0 °
± 10 °
0 °
0 °
± 20 °
0 °
± 30 °
0 °
± 40 °
0 °
± 50 °
0 ° 12 '
0 ° 20 '
1 ° 30 '26 18 11 11 11 11
NOTE. Transparent reflector incidence angle of ± 30 °, CIL value at ± 40 ° and ± 50 ° is not available at the reflector.
Table 2 Coefficient of yellow light intensity of the reflector (the CIL) in units of milli candela per lux
The observation angle α
The angle of incidence β
Vertical. 0 °
Levels. 0 °
± 10 °
0 °
0 °
± 20 °
0 °
± 30 °
0 °
± 40 °
0 °
± 50 °
0 ° 12 '
0 ° 20 '
1 ° 30 '16.25 11.25 6.88 6.88 6.88 6.88
Note. Yellow reflector incidence angle of ± 30 °, CIL value at ± 40 ° and ± 50 ° is not available at the reflector.
Table 3 coefficient of the red light intensity of the reflector (the CIL) in units of milli candela per lux
The observation angle α
The angle of incidence β
Vertical. 0 °
Levels. 0 °
± 10 °
0 °
0 °
± 20 °
0 °
± 30 °
0 °
± 40 °
0 °
± 50 °
0 ° 12 '
0 ° 20 '
1 ° 30 '6.25 4.5 2.75 2.75 2.75 2.75
Note. red reflector incidence angle of ± 30 °, CIL value at ± 40 ° and ± 50 ° is not available at the reflector.
Table 4 Yellow pedal intensity coefficient reflector (the CIL) in units of milli candela per lux
The observation angle α
The angle of incidence β
Vertical. 0 °
Levels. 0 °
± 10 °
0 °
0 °
± 20 °
0 ° 12 '
0 ° 20 '
1 ° 30 '16.5 11.5 7.5
5.2 retro-reflective tires
When tested by the method specified in Chapter 9, the tire retroreflective light intensity coefficient (the CIL) not less than the value specified in Table 5.
When D < 420mm when, for each set of viewing angle and a minimum angle of incidence of the measured light value should be equal to the value D = 420mm to.
Table 5 light intensity reflection coefficient of the tire (the CIL) in units of milli candela per lux
The observation angle α
The angle of incidence β
-4 ° 20 ° 40 ° 50 °
0 ° 12 '
0 ° 20 '
1.21D
0.91D
1.06D
0.80D
0.70D
0.53D
0.21D
0.16D
1 ° 30 '0.121D 0.106D 0.070D 0.021D
6 color requirements
When tested by the method specified in Chapter 10, within the scope of the measured reflected color coordinates in Table 6 to be a predetermined chromaticity.
Note. For ease of reference, these ranges have been represented in FIG.
Table 6 chromaticity coordinates of the intersection of the boundary line of light and color (x, y)
Color coordinates
red
x 0.665 0.645 0.721 0.735
y 0.335 0.335 0.259 0.265
yellow
x 0.560 0.546 0.612 0.618
y 0.440 0.426 0.382 0.382
white
x 0.285 0.453 0.500 0.500 0.440 0.285
y 0.332 0.440 0.440 0.382 0.382 0.264
White/yellow a
x 0.380 0.509 0.618 0.440 0.380
y 0.408 0.490 0.382 0.382 0.337
only for a retroreflective tires.
7 Physical Requirements
Reflector 7.1
7.1.1 Structure
Reflector and/or reflector bracket to be fitted with a special way to ensure that the reflectors can be positioned as designed, installed in their own
Car.
FIG 2 reflecting means color boundary line sections
7.1.2 Test
7.1.2.1 General
The reflector shall comply with the requirements of Section 5.1 and 6, or in any of the tests all subjected to the test specified in 7.1.2.2 ~ 7.1.2.8
After will affect the performance of the reflector should be no loose bracket, frame no deformation.
7.1.2.2 Temperature Test
When the test according to the method described below, should not significantly damage the reflector.
The reflector is placed in the preheating furnace 50 5 0 ℃ temperature of at least 1h.
NOTE. pedal reflector may be integrally tested pedal.
7.1.2.3 Impact Test
The reflector at room temperature, when a method according to the test, the reflector mirror should not break.
And mounted on the same bicycle, the reflector is mounted in place, but the flat mirror reflector upward.
To a 13mm diameter polished solid steel ball falls from the central portion of the vertical height of 0.76m reflector mirror. Ball falls
You can have boots, but does not affect its free fall.
Note. The pedal reflectors removed from the trial.
7.1.2.4 humidity resistance test
Reflecting means, whether or not there lighting portion, after which all the parts are removable to dismantle immersed in a temperature (50 ± 5) ℃ water
10min, the highest point of the reflecting surface of the underwater part of 20mm was immersed. Then reflecting means turn 180 °, i.e., the reflection surface, so that the back surface
10min 20mm deep immersion in water, and then immediately immersed in a temperature of the reflecting means (25 ± 5) ℃ water, according to the same requirements described above
Repeat the test.
7.1.2.5 reflecting means aligned Test
, (Except for the reflector and the pedal mounted on the spoke reflector) according to the test method described below when the optical axis of the reflector during the test
Offset of not greater than 15 °, rendering a permanent offset after the test should not exceed 5 °.
And reflector means mounted on the rigid bracket a test specifically for the generic member or cooperating with the frame (which may be Ann
Rigidly mounted on the stationary bicycles are a) selecting at least three of the reflector most easily shifted in the direction of the force applied to 90N, respectively.
7.1.2.6 corrosion
When the method according to the test specified in ISO 3768, the reflector should not exhibit significant signs of corrosion, so as not to affect the finished mounting or ho...