مقدار کلراید هیدروتست طبق API 510 مخازن تحت فشار در حین سرویس

5.8.5.2 Hydrostatic pressure tests of equipment having components of Type 300 series stainless steel should be 

conducted with potable water or steam condensate having a chloride concentration of less than 50 ppm. After the 

test, the vessel should be completely drained and dried. The inspector should verify the specified water quality is 

used and that the vessel has been drained and dried (all high-point vents should be open during draining). If potable 

water is not available or if immediate draining and drying is not possible, water having a very low chloride level (e.g. 

steam condensate), higher pH (>10), and inhibitor addition should be considered to reduce the risk of pitting, chloride 

stress corrosion cracking, and microbiologically induced corrosion. For sensitized austenitic stainless steel piping 

subject to polythionic stress corrosion cracking, consideration should be given to using an alkaline-water solution for 

pressure testing (see NACE RP0170).