Analysis and testing for oil workings; Analysis of oil fields; Testing of raw materials; Testing, analysis and evaluation of materials, namely, metal, plastic and nylon; Testing, analysis and evaluation of metal tools, machinery and fabrication equipment; Testing, analysis, and evaluation of the goods of others to assure compliance with industry standards; Analysis and testing for oil workings; Chemical analysis; Environmental engineering, testing and inspection services; Executing of chemical analyses; Material testing; Materials testing and analysing; Materials testing and evaluation; Performance of chemical analyses; Product testing; Research, development, engineering and testing services in the fields of welding and material joining; Testing, analysis and evaluation of materials, namely, metal, plastic and nylon; Testing, analysis and evaluation of metal tools, machinery and fabrication equipment; Testing, analysis, and evaluation of the goods of others to assure compliance with industry standards; Testing, analysis, and evaluation of the knowledge, skills and abilities of others in the field of coatings to determine conformity with certification standards; Testing, analysis, and evaluation of manufacture and production to assure compliance with regulated industry standards; Testing, analysis, and evaluation of production to determine conformity with certification standards; Working on and evaluation of chemical analyses