ASTM B 827 - 05 Standard Practice for Conducting Mixed Flowing Gas (MFG) Environmental Tests

American Society for Testing and Materials (ASTM). Current edition approved May 1, 2005. Published June 2005. Originally approved in 1992. Last previous edition approved in 2003 as B 827 - 97 (2003). 9 p. This practice provides procedures for conducting environmental tests involving exposures to controlled quantities of corrosive gas mixtures.
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