低温湿硫化氢腐蚀最低浓度是多少? sour wet, sour water equipment in sour wet and sour water services are required to undergo testing to ensure that welds do not exceed a maximum brinell hardness. nace standard covers the requirements for design, material and construction for equipment designated on the data sheet as "sour wet", and "sour water" service. sour wet service is defined as a service in which the process stream contains liquid water and the gas being handled is at an absolute pressure of 65 psia or greater and the partial pressure of h2s in the gas is greater than 0.05 psia. sour water service is defined as all process streams which contain either: · liquid water and at least 10 ppm h2s or · liquid water and at least 10 ppm of h2s and cn (or other metallurgical poisons such as p, as, se, sb and te which can cause hydrogen attack). 不知你们说的是不是第二种?查看更多