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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 This standard does not purport to address all of the safety problems, 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. See 220.127.116.11.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
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 of 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
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ASTM B827-97, Standard Practice for Conducting Mixed Flowing Gas (MFG) Environmental Tests, ASTM International, West Conshohocken, PA, 1997, www.astm.orgBack to Top