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| rsc.org/ The learned society for chemistry and the professional body for chemists in the UK with 46,000 members worldwide. It is a major publisher of chemical information, supports the teaching of chemistry at all levels, organises hundreds of chemical meetings a |    |
| aspe.net/ A multi-disciplinary professional and technical society concerned with research and development, design, manufacture, and measurement of high accuracy components and systems. ASPE activities encompass relevant aspects of mechanical, electronic, optical an |    | |
| acs.org/ The Society fosters scientific education and research, and promotes public understanding of science. Society founded in 1876, now claiming to be the world's largest scientific society, with a membership of over 155,000 chemists and chemical engineers. |    | |
| chem.qmw.ac.uk/iupac/ Full text of IUPAC recommendations, a list of elements in Atomic Number order, including an illustrated glossary of class names of organic compounds and reactive intermediates based on structure, a glossary of physical organic chemistry and a glossary of |    | |
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