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  • AS 3894.1-2002

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    Site testing of protective coatings Non-conductive coatings - Continuity testing - High voltage (brush) method (Reconfirmed 2013)

    Available format(s):  Hardcopy, PDF 1 User, PDF 3 Users, PDF 5 Users, PDF 9 Users

    Language(s):  English

    Published date:  07-06-2002

    Publisher:  Standards Australia

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    Abstract - (Show below) - (Hide below)

    This Standard provides a practical test method for the on-site determination of the presence of pinholes, holidays, cracks and other discontinuities that penetrate to the substrate, in a non-conductive, protective coating of at least 150 µm thickness on a conductive substrate, using the high voltage or ‘brush’ method.

    Scope - (Show below) - (Hide below)

    This Standard provides a practical test method for the on-site determination of the presence of pinholes, holidays, cracks and other discontinuities that penetrate to the substrate, in a non-conductive, protective coating of at least 150 mm thickness (see Note) on a conductive substrate, using the high voltage or ‘brush’ method.NOTE: Where coatings are less than 150 mm thick, an alternative method such as the low voltage wet sponge method should be used.This Standard is applicable to site testing of coated metal items of equipment or structures which may be subjected to long-term burial or immersion, such as structural steel, pipelines, storage vessels, bridges and mobile/transportable containers. The method is confined to testing instruments that can provide a minimum voltage of 500 V. The Standard is not intended to apply to coating types incorporating components that conduct an electric current, such as zinc dust and aluminium flakes.The voltages recommended in this Standard are intended to be applied under conditions of normal atmospheric pressure and temperature.

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

    Committee CH-003
    Document Type Standard
    Product Note Reconfirmation Notice 12/11/2013
    Publisher Standards Australia
    Status Current
    Supersedes

    History - (Show below) - (Hide below)

    First published as AS 3894.1-1991.Second edition 2002.Reconfirmed 2013. Originated AS 3894.1-1991. Second edition 2002.

    Standards Referenced By This Book - (Show below) - (Hide below)

    AS/NZS 2310:1995 Glossary of paint and painting terms
    AS/NZS 2310:2002 Glossary of paint and painting terms (Reconfirmed 2016)
    AS 2886-1986 Voltage measurement - Sphere-gap method (one sphere earthed)
    AS 2243.7-1991 Safety in laboratories - Electrical aspects
    AS 3894.7-2002 Site testing of protective coatings Determination of surface temperature (Reconfirmed 2013)
    AS/NZS 1580.101.5:1999 Paints and related materials - Methods of test Conditions of test - Temperature and humidity control (Reconfirmed 2013)
    AS/NZS 3894.7:1996 Site testing of protective coatings Determination of surface temperature

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

    AS/NZS 1596:2002 The storage and handling of LP Gas
    AS/NZS 2310:2002 Glossary of paint and painting terms (Reconfirmed 2016)
    AS 1627.0-1997 Metal finishing - Preparation and pretreatment of surfaces Method selection guide
    AS 3750.2-1994 Paints for steel structures - Ultra high-build paint
    AS/NZS 2638.2:2011 Gate valves for waterworks purposes Resilient seated (Reconfirmed 2022)
    AS/NZS 1518:2002 External extruded high-density polyethylene coating system for pipes (Reconfirmed 2016)
    AS 4506-2005 Metal finishing - Thermoset powder coatings
    AS 5081-2008 Hydraulically operated automatic control valves for waterworks purposes
    AS 4956-2008 Air valves for water supply
    AS 4795-2002 Double-flanged butterfly valves for waterworks purposes
    AS 4883-2008 Air valves for sewerage
    AS/NZS 2312:2002 Guide to the protection of structural steel against atmospheric corrosion by the use of protective coatings
    AS 4883:2017 Air valves for sewerage
    AS 3894.2-2002 Site testing of protective coatings Non-conductive coatings - Continuity testing - Wet sponge method
    AS 2885.1-2007 Pipelines - Gas and liquid petroleum - Design and construction
    AS 2638.2-2006 Gate valves for waterworks purposes - Resilient seated
    AS/NZS 4158:2003 Thermal-bonded polymeric coatings on valves and fittings for water industry purposes
    AS 4822-2008 External field joint coatings for steel pipelines
    AS 3862:2020 External fusion-bonded epoxy coating for steel pipes
    AS 2638.1-2002 Gate valves for waterworks purposes Metal seated
    AS 4795-2006 Butterfly valves for waterworks purposes
    AS/NZS 3788:2006 Pressure equipment - In-service inspection
    AS/NZS 1596:2008 The storage and handling of LP Gas
    AS 4956:2017 Air valves for water supply
    AS 2638.2-2002 Gate valves for waterworks purposes - Resilient seated
    AS/NZS 5131:2016 Structural steelwork - Fabrication and erection
    AS 4795.2-2011 Butterfly valves for waterworks purposes Double flanged
    AS/NZS 3750.2:2008 Paints for steel structures Ultra high-build paint (Reconfirmed 2020)
    AS 2885.1-2012 Pipelines - Gas and liquid petroleum Design and construction
    AS/NZS 1596:2014 The storage and handling of LP Gas
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