Vacuum box testing is a non-destructive examination used when trying to locate weld seam leaks. A vacuum box and a compressor create a high or low pressure vacuum while a detergent solution is applied to the test area. The detergent bubbles, making leaks visible within the created pressure envelope. AKMEC utilizes systems compliant with ASTM E515. All inspections are conducted within the parameters of ASME Section V Article 10, Appendix II or to client specifications.