Accurate Weld Test Laboratory is one of the best in the area because all procedures are subject to X Ray testing along with the tensiles and bends.Without radiographs you are " Flying Blind " with respect to what is being tested.There are too many labs out there who when you go back to them with a question they cannot seem to remember exactly what the testing requirements were. What is worse these " laboratories" will just ask you to tell them what you want the certificate to say and " slam / bam " the certificate isfixed , many times without going through the laboratories' customer.I have engaged every commercial laboratory in Southern California over the past 30 + years in the area within my employment in the petroleum, aerospace, and architect -engineering business and I find them without equal.