ASTM B827-05(2009)e2

    Standard Practice for Conducting Mixed Flowing Gas (MFG) Environmental Tests

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    1. Scope

    1.1 This practice provides procedures for conducting environmental tests involving exposures to controlled quantities of corrosive gas mixtures.

    1.2 This practice provides for the required equipment and methods for gas, temperature, and humidity control which enable tests to be conducted in a reproducible manner. Reproducibility is measured through the use of control coupons whose corrosion films are evaluated by mass gain, coulometry, or by various electron and X-ray beam analysis techniques. Reproducibility can also be measured by in situ corrosion rate monitors using electrical resistance or mass/frequency change methods.

    1.3 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.

    1.4 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 become familiar with all hazards including those identified in the appropriate Material Safety Data Sheet (MSDS) for this product/material as provided by the manufacturer, to establish appropriate safety and health practices, and determine the applicability of regulatory limitations prior to use. See

    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

    B542 Terminology Relating to Electrical Contacts and Their Use

    B765 Guide for Selection of Porosity and Gross Defect Tests for Electrodeposits and Related Metallic Coatings

    B808 Test Method for Monitoring of Atmospheric Corrosion Chambers by Quartz Crystal Microbalances

    B810 Test Method for Calibration of Atmospheric Corrosion Test Chambers by Change in Mass of Copper Coupons

    B825 Test Method for Coulometric Reduction of Surface Films on Metallic Test Samples

    B826 Test Method for Monitoring Atmospheric Corrosion Tests by Electrical Resistance Probes

    B845 Guide for Mixed Flowing Gas (MFG) Tests for Electrical Contacts

    D1193 Specification for Reagent Water

    D2912 Test Method for Oxidant Content of the Atmosphere (Neutral Ki)

    D2914 Test Methods for Sulfur Dioxide Content of the Atmosphere (West-Gaeke Method)

    D3449 Test Method for Sulfur Dioxide in Workplace Atmospheres (Barium Perchlorate Method)

    D3464 Test Method for Average Velocity in a Duct Using a Thermal Anemometer

    D3609 Practice for Calibration Techniques Using Permeation Tubes

    D3824 Test Methods for Continuous Measurement of Oxides of Nitrogen in the Ambient or Workplace Atmosphere by the Chemiluminescent Method

    D4230 Test Method for Measuring Humidity with Cooled-Surface Condensation (Dew-Point) Hygrometer

    E902 Practice for Checking the Operating Characteristics of X-Ray Photoelectron Spectrometers

    G91 Practice for Monitoring Atmospheric SO2 Deposition Rate for Atmospheric Corrosivity Evaluation

    ICS Code

    ICS Number Code 71.100.20 (Gases for industrial application)

    UNSPSC Code

    UNSPSC Code 39121522(Electrical contacts)

    Referencing This Standard
    Link Here
    Link to Active (This link will always route to the current Active version of the standard.)

    DOI: 10.1520/B0827-05R09E02

    Citation Format

    ASTM B827-05(2009)e2, Standard Practice for Conducting Mixed Flowing Gas (MFG) Environmental Tests, ASTM International, West Conshohocken, PA, 2009,

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