DUS 1999: 2018, Standard Test Method for Measurement of Retroreflective Pavement Marking Materials with CEN-Prescribed Geometry Using a Portable Retroreflectometer, First Edition.

来源：epingalert 发布时间：2018-07-13 浏览量：*

通告成员：

Uganda

通告类型：

TBT

通告发布时间：

2018-07-13

评议截止时间：

2018-09-11

通告描述：

This Draft Uganda Standard covers the measurement of the retroreflective properties of horizontal pavement marking materials containing retroreflecting beads, such as traffic stripes and surface symbols, using a portable retroreflectometer that can be placed on the road delineation to measure the retroreflection at a prescribed geometry. The restriction to bead based materials is for the purpose of ensuring a sufficiently gradual optical response function (from points of the source aperture to points of the receiver aperture) to allow generous sized instrument source and receiver apertures.

The entrance and observation angles of the retroreflectometer affect the readings. As specified by the European Committee for Standardization (CEN), the entrance and observation angles shall be 88.76° and 1.05°, respectively. This test method is intended to be used for field measurement of pavement markings but may be used to measure the performance of materials on sample panels before placing the marking material in the field.

文档编号：

G/TBT/N/UGA/880

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原文文档翻译文档

ICS Code：

87.040 - Paints and varnishes

HS Code：

3208 - Paints and varnishes, incl. enamels and lacquers, based on synthetic polymers or chemically modified natural polymers, dispersed or dissolved in a non-aqueous medium; solutions of products of subheading 3901 to 3913 in volatile organic solvents, containing > 50% solvent by weight (excl. solutions of collodion)
3209 - Paints and varnishes, incl. enamels and lacquers, based on synthetic polymers or chemically modified natural polymers, dispersed or dissolved in an aqueous medium

通告目的：

Protection of human health or safety (TBT)
Prevention of deceptive practices and consumer protection (TBT)
Harmonization (TBT)

DUS 1999: 2018, Standard Test Method for Measurement of Retroreflective Pavement Marking Materials with CEN-Prescribed Geometry Using a Portable Retroreflectometer, First Edition.

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