ASTM D7305-08a
Historical Standard: ASTM D7305-08a Standard Test Method for Reflection Density of Printed Matter
SUPERSEDED (see Active link, below)
ASTM D7305
1. Scope
1.1 This test method describes a procedure for measuring reflection density of printed matter using a reflection densitometer or spectrodensitometer.
1.2 This test method is intended primarily for process colors (yellow, magenta and cyan) and black. With appropriate instrumentation, it may also be used for other colors.
1.3 This test method applies to prints made by any printing process on a flat surface, with reflection density values ranging from just above zero, on the unprinted substrate, through to around 2.5 for very dense prints.
1.4 This test method can be used for prints on paper, film or board but not for those on metal or foil. It can be conducted in the pressroom or laboratory.
1.5 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
1.6 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
ASTM Standards
E284 Terminology of Appearance
E691 Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method
ANSI Standards
PH2.18 Spectral Conditions for the Measurement of Optical DensityOther Standard
DIN16536-2:1986 Testing of prints and printing inks in graphic technology -- Colour density measurements on on-press or off-press printsKeywords
process color; reflection densitometer; reflection density; spectrodensitometer; ICS Number Code 37.100.01
DOI: 10.1520/D7305-08A
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