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ASTM G97-1997(2013) Standard Test Method for Laboratory Evaluation of Magnesium Sacrificial Anode Test Specimens for Underground Applications

Standard Number:  ASTM G97-1997(2013)
Title:  Standard Test Method for Laboratory Evaluation of Magnesium Sacrificial Anode Test Specimens for Underground Applications
Language:  English
Replacing Standard:  ASTM G97-97(2007)

Status:  Current
International Classification for Standards (ICS)METALLURGY>>Products of non-ferrous metals>>Magnesium products
Publisher:  American Society for Testing Material (ASTM)
Price:  
Number of Pages:  

Description:

Scope

1.1 This test method covers a laboratory procedure that measures the two fundamental performance properties of magnesium sacrificial anode test specimens operating in a saturated calcium sulfate, saturated magnesium hydroxide environment. The two fundamental properties are electrode (oxidation potential) and ampere hours (Ah) obtained per unit mass of specimen consumed. Magnesium anodes installed underground are usually surrounded by a backfill material that typically consists of 75 % gypsum (CaSO4·2H 2O), 20 % bentonite clay, and 5 % sodium sulfate (Na 2SO4). The calcium sulfate, magnesium hydroxide test electrolyte simulates the long term environment around an anode installed in the gypsum-bentonite-sodium sulfate backfill.

  
File Format:  PDF(Acrobat Reader) or Word version doc Document
File Size:  478KB
Tile in English:  Standard Test Method for Laboratory Evaluation of Magnesium Sacrificial Anode Test Specimens for Underground Applications

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