Classification
620 - Engineering & allied operations
530 - Physics
142
667 - Cleaning, color & coating technologies
69
547 - Organic chemistry
36
621 - Applied physics
23
541 - Physical chemistry
20
660 - Chemical engineering
15
502 - Miscellany
4
537 - Electricity & electronics
4
616 - Diseases
4
005 - Computer programming, programs & data
2
664 - Food technology
2
062 - Organizations in British Isles; in England
1
543 - Analytical chemistry
1