UNI ISO 2471 : 2009

Current

Current The latest, up-to-date edition.

PAPER AND BOARD - DETERMINATION OF OPACITY (PAPER BACKING) - DIFFUSE REFLECTANCE METHOD

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Published date: 25-08-2009

Publisher: Ente Nazionale Italiano di Unificazione (UNI)

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Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Principle
5 Apparatus
6 Sampling and conditioning
7 Preparation of test pieces
8 Procedure
9 Calculation of results
10 Precision
11 Test report
Annex A (normative) - Spectral characteristics of
reflectometers for measuring luminance factor
Bibliography

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The standard describes a method of measuring the opacity of paper on a paper background by reflection in diffused light.

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Development Note	Supersedes UNI 7624. (09/2009)
Document Type	Standard
ISBN
Pages
Published
Publisher	Ente Nazionale Italiano di Unificazione (UNI)
Status	Current
Supersedes	UNI 7624 : 1986

International Equivalents – Equivalent Standard(s) & Relationship - (Show below) - (Hide below)

Equivalent Standard(s)	Relationship
ISO 2471:2008	Identical

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

ISO 4094:2005	Paper, board and pulps International calibration of testing apparatus Nomination and acceptance of standardizing and authorized laboratories
ISO 187:1990	Paper, board and pulps — Standard atmosphere for conditioning and testing and procedure for monitoring the atmosphere and conditioning of samples
ISO 186:2002	Paper and board — Sampling to determine average quality
ISO 10526:2007	CIE standard illuminants for colorimetry
ISO 2469:2014	Paper, board and pulps — Measurement of diffuse radiance factor (diffuse reflectance factor)

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