42 Testing of materials, analysis and evaluation of the goods of others to determine conformity with certification standards, authentication and quality control services for others in the field of jewellery, precious metals, non-precious metals, plastics, resin, glass, leather and textiles; materials testing; authentication, testing and analysis and evaluation of the goods of others to determine conformity with certification standards services for metals, jewellery, precious and semi-precious stones and precious and semi-precious metals, non-precious metals, plastics, resin, glass, leather and textiles; quality control services for others in the nature of assaying, analysis and evaluation of the goods of others to determine conformity with certification standards and quality accreditation standards; metallurgical testing; quality checking in the nature of evaluation and testing of jewellery and precious metals; quality checking in the nature of evaluation and testing of precious and semiprecious stones; analytical testing services, namely, the testing and evaluation of jewellery, precious metals, precious and semiprecious stones, non-precious metals, plastics, resin, glass, leather and textiles; preparation of technical reports in the nature of quality control and research of precious metals, precious and semi-precious stones, non-precious metals, plastics, resin, glass, leather and textiles; technological advice and consultancy in the field of precious metals materials testing and evaluation; technical data analysis of precious metals and precious and semi-precious stones testing; new product design services for jewellery, watches and clocks; scientific and technological laboratory and research services in the fields of precious metals and precious and semi-precious stones, non-precious metals, plastics, resin, glass, leather and textiles; laboratory research services relating to precious metals and precious and semi-precious stones, non-precious metals, plastics, resin, glass, leather and textiles; laboratory testing services in the fields of precious metals and precious and semi-precious stones, non-precious metals, plastics, resin, glass, leather and textiles; design and development of software; maintenance, updating and design of computer software for databases; information, advice and consultancy for all the aforesaid services