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  • UNI EN ISO 7490 : 2001

    Withdrawn A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.

    DENTAL GYPSUM-BONDED CASTING INVESTMENTS

    Available format(s): 

    Withdrawn date:  07-10-2015

    Language(s): 

    Published date:  31-12-2000

    Publisher:  Ente Nazionale Italiano di Unificazione (UNI)

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

    Contents
    Foreword
    Introduction
    1 Scope
    2 Term and definition
    3 Classification
    4 Requirements
    4.1 Appearance of powder
    4.2 Fluidity at working time
    4.3 Setting time
    4.4 Compressive strength
    4.5 Linear setting expansion
    4.6 Linear thermal expansion
    5 Sampling, test conditions and mixing
    5.1 Sampling
    5.2 Test conditions
    5.3 Mixing
    6 Test methods
    6.1 Visual examination
    6.2 Fluidity at work time
    6.3 Setting time
    6.4 Compressive strength
    6.5 Linear setting expansion
    6.6 Linear thermal expansion
    7 Manufacturer's instructions
    8 Packaging
    8.1 Packaging
    8.2 Mould lining
    9 Marking

    Abstract - (Show below) - (Hide below)

    Specifies requirements for, and establishes a classification of, gypsum-bonded casting investments together with the test methods to be used to determine compliance with these requirements. Applies to gypsum-bonded investments suitable for casting dental gold alloy which have liquid temperatures not greater than 1080 Degrees C. Coverage includes: sampling, packaging and marking. Also includes annexes, tables and diagrams.

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

    Development Note Supersedes UNI EN 27490. (07/2001)
    Document Type Standard
    Publisher Ente Nazionale Italiano di Unificazione (UNI)
    Status Withdrawn
    Supersedes
    View more information

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