ASTM F1425 - 06(2011)

    Standard Test Method for Determining the Tribocharge of Two-Component Developer Materials

    Active Standard ASTM F1425 | Developed by Subcommittee: F05.04

    Book of Standards Volume: 15.09


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    Significance and Use

    5.1 This test method measures a fundamental property of a toner and developer mix used in copiers and printers. This test method is used for quality control purposes and to determine the ability of the toner and developer materials to develop onto the photoreceptor.

    5.2 This test method may be used to measure the chargeto-mass ratio of new developer mixes.

    5.3 This test method may be used to measure the chargeto-mass ratio of developer material samples taken from a machine.

    5.4 This test method may be used to measure the toner concentration of new developer mixes.

    5.5 This test method may be used to measure the toner concentration of developer material samples taken from a machine.

    1. Scope

    1.1 This test method describes a technique for measuring the tribocharge or charge-to-mass ratio of a sample of developer material.

    1.2 This test method determines the concentration of toner in a sample of developer material.


    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

    F335 Terminology Relating to Electrostatic Imaging


    ICS Code

    ICS Number Code 37.100.20 (Materials for graphic technology)

    UNSPSC Code

    UNSPSC Code 44103108(Developer for printers or photocopiers)


    DOI: 10.1520/F1425-06R11

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