#干湿态标线 1 个

#逆反测试方法 1 个

#标线及涂料检验检测 11 个

ASTM E2177-18

在标准潮湿试验条件下

交通标线逆反射亮度系数（R

L

）测试方法

ASTME2177-18

Scope范围

1.1 This test method covers themeasurement of the wet retroreflective (R

L

) properties of horizontalpavement marking materials, such as traffic stripes and road surface symbols,using a portable or mobile retroreflectomenter that can be placed on or beforethe road marking to measure the retroreflection at the prescribed geometry.

1.1本试验方法包括使用便携式或移动式逆反射标线测量仪测量水平路面标线材料(如交通

标线

和路面符号)的潮湿状态下的逆反射性能，逆反射测量仪可选择放置在标线上面或前面，以测量标线在规定几何条件下的逆反射性能。

1.2This method of measuring the wet retroreflective properties (R

L

) of pavement markings measures the retroreflectivity in a standard condition of wetness （see fig.1）

1.2这种测量路面标线潮湿状态下逆反射亮度系数(R

L

)的方法是在标准潮湿条件下测试逆反射亮度系数 (见图1)

1.2.1 Discussion—This test condition typically exists (1) after a rainfall has endedand the pavement markings are still wet or (2) as the markings are wet from dewor humidity.

1.2.1讨论—这种试验条件通常存在(1)降雨结束后，路面标线仍然潮湿，或(2)由于露水或湿度的标线潮湿。

1.3

Retroreflective performanceobtained with this test in conditions of wetness does not necessarily relate tohow markings perform in conditions of rain, that is, as markings are beingrained upon. Test Method E2832 defines a method to measure the performance ofpavement markings in conditions of simulated rain.

1.3在潮湿条件下通过本试验获得的逆反射性能不一定与标线在下雨情况下的性能有关，也就是说，在标线被雨淋时，测试方法E2832定义了一种在模拟降雨条件下测量路面标记性能的方法。

1.4 This test method specifies the useof portable or mobile reflectomenters that can measure pavement markings inaccordance with Test Method E1710.

2

The entrance and observationangles required of the retroreflectometer in this test methed are commonlyreferred to as “30 meter geometry.”

2

1.4本测试方法规定了便携式或移动式逆反射亮度系数测量仪的测试方法，该测量仪可根据E1710.2测量路面标线。本测试方法中，逆反射亮度系数测量仪所需的入射角和观察角通常称为“30米几何条件”

1.5 The values stated in SI units areto be regarded as standard. No other units of measurement are included in thisatandard.

1.5以国际单位制表示的数值应被视为标准值。本标准不包括其他测量单位。

1.6 This standard does not purport toaddress all of the safety concerns, if any, associated with its use. It is theresponsibility of the user of this standard to establish appropriate safety,health, and environmental practices and determine the applicability ofregulatory limitations prior to use.

1.6本标准并非旨在解决与使用相关的所有安全问题。本标准的使用者有责任建立适当的安全，健康和环境规范，并在使用前确定法规限制的适用性。

1.7 This international standard wasdeveloped in accordance with internationally recognized principles onstandardization established in the Decision on Principles for the Developmentof International Standards, Guides and Recommendations issued by the World TradeOrganization Technical Barriers to Trade(TBT) Committee.

  1.7本国际标准是根据世界贸易组织技术性贸易壁垒委员会发布的《关于制定国际标准、指南和建议的原则的决定》中确立的国际公认的标准化原则制定的。

2．ReferencedDocuments参考文件

2.1 ASTM Standards:

3

ASTM标准

E177

 Practice for Use of the TermsPrecision and Bias in ASTM Test Methods

E691

 Practice for Conducting anInterlaboratory Study to Determine the Precision of a Test Method

E965

 Test Method for Measuring PavementMacrotexture Depth Using a Volumetric Technique

E1710

 Test method for Measurement ofRetroreflective Pavement Marking Materials with CEN-Prescribed Geometry Using aPortable Retroreflectometer

E2832

 Test Method for Measuring theCoefficient of Retroreflected Luminance of Pavement Markings in a StandardCondition of Continuous Wetting(R

L-2

)

2.1美国材料试验学会标准

E177美国材料试验标准试验方法中精度与偏差术语的使用规程

E691实验室研究测定试验方法精度的标准操作规程

E965用体积测量法测量路面宏观结构深度的标准试验方法

E1710用便携式逆反仪测量CEN规定几何形状的路面反光标线材料的测试方法

E2832在连续润湿（R

L-2

）标准条件下测量路面标线逆反射亮度系数的测试方法

2.2 Other Standard 其它标准

CEN-EN1436 Road Marking Materials——Road marking Performance for Road Users and Test Methods

4

CEN-欧洲标准1436道路标线材料——道路使用者的交通标线性能和测试方法

3. Terminology 术语

3. Terminology

术语

3.1 coefficient of retroreflectedluminance, RL, n—the ratio of the luminance, L, of a projected surface to thenormalillminance, E, at the surface on a plane normal to the incident light,expressed in candelas per square meter per lux (cd/m

2

/lx

1

).Becauseof the low luminance of pavement markings, the untis commonly used aremillicandelas per square meter per lux (mcd/m

2

/lx).

3.1 逆反射亮度系数R

L

，投影到标线表面的亮度L与垂直于入射光的平面上的法向照度E之比，以坎德拉每平方米每勒克斯(cd/m

2

/lx

1

)。由于路面标线的亮度较低，因此常用的单位是毫坎德拉每平方米每勒克斯(mcd/m

2

/lx

1

)。

3.2 condition of wetness, n-the testcondition is created by liberally wetting the pavement marking and waiting acertain time period after wetting for water to run off.

3.2潮湿状态，试验条件是通过充分润湿路面标线并在润湿后等待一定时间让水流出而创建的试验条件。

3.2.1 Discussion—Similar conditionsexist when pavement markings are wet or damp such as typically found after arain has ended or from dew and high hunmidity.

3.2.1分析：路面标线潮湿状态，存在下列类似的情况，通常在降雨结束后或因露水和高....