Skip to content
Please enter a keyword to search

  • BS ISO 17221:2014

    Current The latest, up-to-date edition.

    Plastics. Determination of image clarity (degree of sharpness of reflected or transmitted image)

    Available format(s):  Hardcopy, PDF

    Language(s):  English

    Published date:  31-05-2014

    Publisher:  British Standards Institution

    Add To Cart

    Table of Contents - (Show below) - (Hide below)

    Foreword
    Introduction
    1 Scope
    2 Normative references
    3 Terms and definitions
    4 Principle
    5 Instrument
    6 Test specimen
    7 Procedure
    8 Calculation
    9 Test report
    Annex A (informative) - Example of determination
    Annex B (informative) - Precision
    Bibliography

    Abstract - (Show below) - (Hide below)

    Describes an instrumental method for determining the image clarity on plastics specimens by measuring reflection from the specimen surface or transmission through the specimen.

    Scope - (Show below) - (Hide below)

    This International Standard specifies an instrumental method for determining the image clarity on plastics specimens by measuring reflection from the specimen surface or transmission through the specimen.

    The method can be applied only to a flat surface.

    NOTE For same materials, different values of image clarity can be obtained depending on specimen preparation.

    General Product Information - (Show below) - (Hide below)

    Committee PRI/21
    Development Note Supersedes 12/30265045 DC. (05/2014)
    Document Type Standard
    Publisher British Standards Institution
    Status Current
    Supersedes

    Standards Referencing This Book - (Show below) - (Hide below)

    ISO 5725-1:1994 Accuracy (trueness and precision) of measurement methods and results — Part 1: General principles and definitions
    ISO 11664-1:2007 Colorimetry Part 1: CIE standard colorimetric observers
    ISO 472:2013 Plastics Vocabulary
    ISO 11664-2:2007 Colorimetry — Part 2: CIE standard illuminants
    ISO 14782:1999 Plastics Determination of haze for transparent materials
    ISO 2813:2014 Paints and varnishes — Determination of gloss value at 20°, 60° and 85°
    View more information

    • Access your standards online with a subscription

      Features

      • Simple online access to standards, technical information and regulations
      • Critical updates of standards and customisable alerts and notifications
      • Multi - user online standards collection: secure, flexibile and cost effective