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MHT6035-2018: (Retro-reflective markers along taxiway)
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(Retro-reflective markers along taxiway)
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MH/T 6035-2018
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Basic data | Standard ID | MH/T 6035-2018 (MH/T6035-2018) | | Description (Translated English) | (Retro-reflective markers along taxiway) | | Sector / Industry | Civil Aviation Industry Standard (Recommended) | | Classification of Chinese Standard | V56 | | Word Count Estimation | 11,153 | | Date of Issue | 8/21/2018 | | Date of Implementation | 11/1/2018 | | Older Standard (superseded by this standard) | MH/T 6035��2005 | | Issuing agency(ies) | Civil Aviation Administration of China | MHT6035-2018: (Retro-reflective markers along taxiway)---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Taxiway edge retro-reflective marker
ICS 03.220.50
V 56
MH
Civil Aviation Industry Standard of the People's Republic of China
Replace MH/T 6035-2005
Taxiway side retroreflective marker
2018-08-21 released
2018-11-01 implementation
Issued by Civil Aviation Administration of China
Table of contents
Foreword...II
1 Scope...1
2 Normative references...1
3 Terms and definitions...1
4 Classification and naming...1
5 Technical requirements...2
5.1 Environmental requirements...2
5.2 Appearance...2
5.3 Retroreflector requirements...2
5.4 Foldability and non-foldability...4
6 Test method...4
6.1 Test environment...4
6.2 Temperature test...4
6.3 Wind load test...4
6.4 Salt spray test...4
6.5 Visual inspection...4
6.6 Classification of adhesive and retroreflective film...5
6.7 Performance requirements of retro-reflective film...5
6.8 Foldability and non-foldability...5
7 Inspection rules...6
7.1 Inspection classification...6
7.2 Type test...6
7.3 Delivery inspection...6
8 Nameplate and manual...7
8.1 Nameplate...7
8.2 Manual...7
9 Packaging, transportation and storage...7
Foreword
This standard was drafted in accordance with the rules given in GB/T 1.1-2009.
This standard replaces MH/T 6035-2005 "Reverse Reflective Markers on Taxiway Edges". Compared with MH/T 6035-2005, the main technical changes are as follows.
-Delete "Markers are classified according to the form of installation base" (see.2005 version 3.1);
--Modify the naming of the model of the marker (see 4.2,.2005 edition 3.3);
-Delete "humidity" and "rain" (2005 version 4.1 b and e);
-Increase the "impact resistance" technical requirements (see 5.3.3.3);
-Increase the "bending resistance" technical requirements (see 5.3.3.4);
-Increase the "adhesion performance" technical requirements (see 5.3.3.5);
-Increase the technical requirements for "shrinkage performance" (see 5.3.3.6);
--- Increase the technical requirements of "Releasable Paper Peelability" (see 5.3.3.7);
-Increase the "weather resistance" technical requirements (see 5.3.3.8);
-Increase the "impact resistance" test method (see 6.7.5);
--- Increase the "bending resistance" test method (see 6.7.6);
--- Increase the "adhesion performance" test method (see 6.7.7);
-Increase the "shrinkage performance" test method (see 6.7.8);
--- Increase the test method of "Releasable Paper Peelability" (see 6.7.9);
-Add "weatherability" test method (see 6.7.10).
This standard was proposed and interpreted by the Airport Department of the Civil Aviation Administration of China.
This standard was approved by the Aircraft Airworthiness Certification Department of the Civil Aviation Administration of China.
This standard is under the jurisdiction of the China Academy of Civil Aviation Science and Technology.
Drafting organizations of this standard. China Civil Aviation Science and Technology Research Institute, Shanghai Shidaizhiguang Lighting Appliance Testing Co., Ltd.
The main drafters of this standard. Wang Ye, Liu Yuhong, Li Jing, Chen Chaozhong, Wang Li.
Taxiway side retroreflective marker
1 Scope
This standard specifies the technical requirements, test methods, inspection rules, inscriptions for the retroreflective markers on the taxiway side (hereinafter referred to as markers)
Brands and instructions, packaging, transportation and storage.
This standard applies to markers installed on the edges of taxiways and aprons in civil airports to mark their boundaries.
2 Normative references
The following documents are indispensable for the application of this document. For dated reference documents, only the dated version applies to this article
Pieces. For undated references, the latest version (including all amendments) applies to this document.
GB/T 191 Packaging, Storage and Transportation Graphic Mark
GB/T 18833-2012 Road traffic reflective film
3 Terms and definitions
3.1
Retroreflection
Reflected light is a kind of reflection that returns from the opposite direction close to the incident light. When the incident light direction changes in a large range, it can still maintain this
nature.
3.2
Retroreflective sheeting
Retroreflective materials that have been made into thin films and can be directly applied.
3.3
Retroreflector
An optical device with excellent retroreflective performance for the outer frame, text, and pattern of the marker surface.
4 Classification and naming
4.1 Markers are divided into three types. D, P, and W according to their ease of folding.
--D means that when the marker is hit by a collision, its fragile part will break;
--P means that the marker has no easy-foldable parts, and the part above the base is broken or broken when subjected to a collision;
--W means that the marker has no easy-folding parts, and the part above the base bends when subjected to a collision.
4.2 The model of the marker is named as follows.
5 Technical requirements
5.1 Environmental requirements
Markers should operate normally for a long time in the following environments.
a) Temperature. -55 ℃～65 ℃;
b) Wind load. the wind speed in any direction is not more than 160 km/h;
c) Salt spray. exposure to salt-saturated atmosphere.
5.2 Appearance
5.2.1 The structure of the retroreflector on the marker should be designed to maximize its visibility. When the observer faces the marker, he sees the monochrome table
The surface should be continuous and unbroken.
5.2.2 The marker should be a cylinder with a diameter of 7.5 cm ± 0.5 cm.
5.2.3 The bottom edge of the retro-reflective film should be at least 5.1 cm higher than the ground. In the case of easy-folding parts, it should be at least 7.6 cm higher than the ground.
5.2.4 At any viewing angle, the minimum retroreflective area should not be less than 150 cm2.The membrane should extend to the top of the cylinder.
5.2.5 After installation, the total height of the marker from the road surface should be no more than 35.5 cm.
5.3 Retroreflector requirements
5.3.1 Adhesive
The adhesive of retroreflective film is divided into the following 4 levels.
--Level 1.Use pressure-sensitive methods to bond the adhesive to a smooth and clean surface without requiring heat, solvent or other bonding preparations;
-Level 2.The adhesive on the back glue should be bonded to the material by heat and pressure. The temperature reaches at least 66 ℃ and a permanent bond should be formed.
The material should be resettable under normal factory production conditions, and the substrate temperature should reach 38 ℃ without damaging the material. Level 2 materials can be more
Hole, used to eliminate air when laminating the film on the thermal vacuum laminator. The particle size and frequency of the porous material should not be affected when printing the film.
damage;
--Level 3.The back glue should have a positionable adhesive for bonding to a smooth and clean surface, which is a low-viscosity, pressure-sensitive adhesive.
There is no need to use solvents, heat or other bonding agents. The viscose backing should be resettable, and the material should not be damaged when the temperature is as high as 38 ℃;
--Level 4.The adhesive should have a low temperature pressure sensitive adhesive, the temperature is as low as -7 ℃, when the film is bonded to a smooth, dry and clean surface
There is no need to use solvents, heat or other bonding agents.
5.3.2 Classification of retro-reflective film
According to the requirements of 4.2 in GB/T 18833-2012, the retroreflective film is classified.
5.3.3 Performance requirements of retro-reflective film
5.3.3.1 Retroreflective coefficient
It meets the blue requirements in 5.3.1 of GB/T 18833-2012.
5.3.3.2 Chromaticity and Luminance Factor
The retro-reflective film should be blue, its brightness factor should not be less than 0.01, and the chromaticity should be within the following limits, see Figure 1.
Green limit. y = 0.118 0.675x
White limit. y = 0.370 – x
Purple boundary. y = 1.65x 0.187
Figure 1 Color of retro-reflective film
5.3.3.3 Impact resistance
Meet the requirements of 5.5 in GB/T 18833-2012.
5.3.3.4 Bending resistance
Comply with GB/T 18833-2012 in 5.6.
5.3.3.5 Adhesion performance
It complies with 5.7 of GB/T 18833-2012.
5.3.3.6 Shrinkage performance
It meets the requirements of 5.8 in GB/T 18833-2012.
5.3.3.7 Peelability of release paper
Comply with GB/T 18833-2012 in 5.9.
5.3.3.8 Weather resistance
Comply with the provisions of 5.14 in GB/T 18833-2012.
5.4 Foldability and non-foldability
5.4.1 Type D markers should be designed to be easily folded or equipped with an easy-to-fold device, and the height of the easy-to-fold point from the ground should not be greater than 7.6 cm. When aviation
When the aircraft hits the marker, the damage to the aircraft is minimized.
5.4.2 P-type and W-type markers should be easily broken or bent. When the aircraft hits the marker, the damage to the aircraft or vehicle is reduced
To the smallest.
6 Test method
6.1 Test environment
Before the test, it should be placed in an environment with a temperature of 23 ℃ ± 2 ℃ and a relative humidity of 50% ± 10% for 24 hours, and then perform various tests.
The general test work should be carried out in an environment with a temperature of 23 ℃ ± 2 ℃ and a relative humidity of 50% ± 10%.
6.2 Temperature test
6.2.1 Non-metallic signs shall be subjected to a high temperature test with a temperature of 65 ℃ ± 2.0 ℃ and no less than 7 hours. Any phenomenon of thermal damage, such as plastic
Material deformation, cracking or cracking, and deterioration of the filter material are regarded as unqualified.
6.2.2 Non-metallic signs should undergo a low temperature test at a temperature of -55 ℃ ± 2.0 ℃ and no less than 24 h. Any damage is regarded as unqualified.
6.3 Wind load test
6.3.1 The marker should withstand a wind load of 80 km/h for 10 minutes, and the marker should remain erect.
6.3.2 The marker should withstand a wind load of 160 km/h for 10 minutes, and the marker and installation system should not show any permanent deformation
Or malfunction.
6.3.3 6 The equivalent static pressure calculated from the wind speeds in 6.3.1 and 6.3.2 can be used to verify the wind load requirements. The equivalent static pressure should be applied vertically
Add to the vertical axis of the marker. The applied pressure P is calculated according to formula (1).
6.4 Salt spray test
Carry out the salt spray test according to the requirements of 6.13 in GB/T 18833-2012.
6.5 Visual inspection
6.5.1 Visually inspect whether the surface structure of the marker meets the requirements of 5.2.1.
6.5.2 Use a size measuring tool to measure whether the size of the marker meets the requirements of 5.2.2 to 5.2.5.
6.6 Classification of adhesive and retroreflective film
Check whether the adhesive and retro-reflective film specification documents meet the requirements of 5.3.1 and 5.3.2.
6.7 Performance requirements of retro-reflective film
6.7.1 No testing conditions
If the manufacturer can provide a qualified report issued by a qualified third-party inspection agency, it proves that the performance of the retroreflective film has met
The requirements of 5.3.3 can be exempted from this test.
6.7.2 Standard test conditions
Before the test, place all test samples and samples of glued structure and non-glued structure at a temperature of 23 ℃ ± 2 ℃ and a relative humidity of 50% ±
Within 5% of the environment, the time is 24 h.
6.7.3 Retroreflective coefficient test
Prepare a 150 mm×150 mm monochromatic sign surface sample and test it in accordance with the method specified in GB/T 18833-2012 6.4.
6.7.4 Chromaticity and Luminance Factor
Prepare a 150 mm×150 mm monochromatic sign surface sample and test it in accordance with the method in GB/T 18833-2012 6.5.
6.7.5 Impact resistance
Test according to 6.6 of GB/T 18833-2012.
6.7.6 Bending resistance
Test according to 6.7 of GB/T 18833-2012.
6.7.7 Adhesion performance
Test according to 6.8 of GB/T 18833-2012.
6.7.8 Shrinkage performance
Perform the test according to the method in GB/T 18833-2002 6.9.
6.7.9 Peelability of release paper
Test according to GB/T 18833-2012 6.10.
6.7.10 Weather resistance
Test according to GB/T 18833-2012 6.15.
6.8 Foldability and non-foldability
6.8.1 Foldability
Completely assemble the marker according to the nominal height and install it on a firmly fixed base plate. The load should be placed on the marker close to the reflection
The lower edge of the membrane is gradually applied at a speed of no more than 220 N/min until it reaches 204 N•m. After confirming that the marker can withstand this load
After it is not damaged, the load should continue to increase at the original speed, and this easy point should be broken before the bending moment reaches 680 N•m. Handle 5 easy-folding devices
For inspection, any component that fails to meet the requirements or breaks off the easy-to-break device, any component damage is regarded as unqualified.
6.8.2 Inflexibility
For markers with no easy-folding parts and the parts above the base made of brittle or flexible materials, the test is carried out according to the following method and shown in Figure 3.
7 Inspection rules
7.1 Inspection classification
Taxiway side retroreflective markers are divided into type test and delivery test.
7.2 Type test
7.2.1 Type test should be carried out in one of the following situations.
a) Finalize the retro-reflective marker on the side of the new taxiway;
b) Production of this model has been suspended for more than 1 year and resumed production;
c) Changes in design, technology, and materials may affect the performance of retroreflective markers on the taxiway side;
d) There is a big gap between the factory inspection results and the last type test results;
e) The civil aviation management department proposes equipment compliance inspection requirements.
7.2.2 Type test items, technical requirements, test methods and sample quantity should be carried out in accordance with Table 1.
7.3 Delivery inspection
According to Table 1, samples are randomly selected for inspection.
8 Nameplate and manual
8.1 Nameplate
Each marker should be set with a permanent nameplate containing the product model, production date, and manufacturer (or trademark).
8.2 Instructions
Each marker should be accompanied by instructions for use including the following information.
a) Complete parts list;
b) Physical characteristics (dimensions and installation dimensions);
c) Assembly and installation instructions.
9 Packaging, transportation and storage
It should be properly packaged in accordance with the provisions of GB/T 191, and the accompanying packing box should be accompanied by a packing list, product qualification certificate, and instruction manual. Each order should be
At least three sets of installation and maintenance instructions are attached.
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