International Standard
ISO/IEC TR 19782:2006
Information technology — Automatic identification and data capture techniques — Effects of gloss and low substrate opacity on reading of bar code symbols
Reference number
ISO/IEC TR 19782:2006
Версия 1
International Standard
ISO/IEC TR 19782:2006
недоступно на русском языке
Опубликовано (Версия 1, 2006)
Последний раз этот стандарт был пересмотрен в  2009. Поэтому данная версия остается актуальной.

ISO/IEC TR 19782:2006

ISO/IEC TR 19782:2006
CHF 96
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Users of bar code systems have experienced problems with poor read rates. These read rate problems can sometimes be attributed to spectral gloss from either the substrate or the image or both.

In many bar code applications, the position and orientation of the scanner relative to the bar code symbol can be directly controlled by the operator. In these applications, the presentation of the bar code symbol to the reader will usually be manipulated by the operator to achieve optimal performance. However, in bar code applications using fixed position automated reading systems, the ability to control bar code symbol presentation to the reader and achieve optimised performance is diminished.

Due to the very high volume of bar code marked items in today's supply chain, even a small reduction in read rate can represent significant logistics problems.

Traditional gloss measurements are made at the angle that maximises specular reflection and do not provide results that can be used to predict performance at other angles. Moreover, many laser scanners use a retro-collective optical system that would correspond to a gloss meter using a zero degree angle of incidence, which is not commonly available.

Present international bar code quality standards, such as ISO/IEC 15416, do not factor the impact of gloss from either the bar code image or substrate into quality grade ratings. Thus a Grade '4' label may be high gloss or low gloss. Low gloss labels and images tend to work well in all scanning systems, while high gloss labels and images may not. In the absence of industry specifications, users have no convenient reference to use when requesting suppliers to provide labels that will work well in their systems. ISO/IEC TR 19782:2006 provides a method for the measurement of gloss that will permit users to judge if the bar code symbol and substrate are suitably matched for the reading system used in their application.

Low opacity of the substrate can degrade system performance because it may reduce the apparent contrast of the bar code symbol. ISO/IEC TR 19782:2006 therefore provides means for measuring the substrate opacity.

The test method described in ISO/IEC TR 19782:2006 provides a means for the production of reproducible measurements. In specific applications, it may be necessary to correlate these measurements to practical performance. For example, a substrate backed by dark liquid may exhibit lower opacity than when measured dry.

ISO/IEC TR 19782:2006 gives guidelines to deal with the effects of substrate gloss and/or low opacity on the performance of bar code symbols when scanned by reading and verification systems.

It defines methods of measurement for gloss and opacity; it identifies conditions and values that present a risk of reading problems and provides recommendations to users on the specification of substrates and the set-up of scanning systems to minimize these problems. It also addresses the relationship between verification results and read performance when either or both of the factors are present.

ISO/IEC TR 19782:2006 is intended for those who specify or implement labelling systems and those involved in the reading of bar code symbols on packages, components and other carriers of bar code symbols.

Общая информация

  •  : Опубликовано
     : 2006-06
    : Подтверждение действия между-народного стандарта [90.93]
  •  : 1
  • ISO/IEC JTC 1/SC 31
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