42 Advisory services relating to material testing; consulting in the field of acoustics, sound, noise, and vibration for scientific purposes; industrial structure inspection and analysis; pipeline inspection services; quality control testing of anti-corrosion materials; testing and research on prevention of pollution; engineering, testing and inspection services, namely, non-invasive testing of pipes to detect leaks, defects and fault location; data collection, processing and automation service using proprietary software to evaluate, analyze and collect sensor data on leak detection and pipe conditions.