A Kind of Slow Aerated Method for H₂S Corrosin Resistance Performance Test

A kind of slow aerated method was proposed when carrying out sulfide stress corrosion (SSC-A)test and hydrogen induced cracking (HIC)test according to the standard of NACE TM0177-2005 and NACE TM0284-2011 respectively,and iodometric method was used to measure the mass concentration of H2S in the solution.At the same time,the time of H2S reaching saturation and the pH value of the solution were studied.The results show that every SSC-A test and HIC test could save 800 mL and 1 695 mL H2S gas respectively after adopting slow aerated method compared to original fast aerated method required in NACE TM0177-2005 and NACE TM0284-2011.So slow aerated method can greatly reduce the test cost and emissions of toxic gas H2S,as well as ensure the reliability and authenticity of the test results.