Decisive Testing, Inc. opened it’s doors in 1968 and is family owned and operated. After over 50 years of operation we’ve grown to be one of the most capable mechanical and non-destructive testing laboratories in southern California. We perform testing across numerous specifications and industries while providing the highest standards of service.


Our facility is 16,000 square feet complete with non-destructive testing, metallurgical and mechanical testing labs. A complete machine and welding shop are also included on the premises.

Personnel Certification

Decisive Testing, Inc.’s inspectors are certified Level II and Level III to NAS-410, ASNT-TC-lA, ASNT CP-189 S9074-AS GIB-010/271, IRRSP, TUV cert, PED AWS QC-I, NADCAP and ESD control. Factory trained OES, PMI Hardness inspectors and Metallurgical Engineer on staff.

Quality Systems

Decisive Testing, Inc.’s quality system is certified to ISO 9001, AS 9100 ANSI/NCSC-21540, Mil-Q-9858B, SAE Rev B and NADCAP. J50 /7Pt,J.

Services Provided

Nondestructive testing includes ET, MT, UT, VT, RT, LT/Helium, PT, GPR, Surface Roughness and Ferrite Content, Utility Location, Coating Thickness, Metallurgical and Mechanical inspection.

Destructive testing includes tensile, hardness, pressure, bend testing, charpy, chemical (through Optical emission spectrometer and Xray refraction), grain size and structure, modulus of elasticity, dimensional metallurgical mounts, macro/micro hardness, microscopy (with digital dimensions), holiday testing, and
failure analysis.

Standards Certified To

ASTM, ASME, API, AWS, Federal Standards, ANSI , ISO 9001, AS 9100 Mil-Std, DOD, SAE, City of Los Angeles.