Classification
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530 - Physics
67
531 - Classical mechanics; solid mechanics
5
532 - Fluid mechanics; liquid mechanics
1
534 - Sound & related vibrations
2
535 - Light & infrared & ultraviolet phenomena
9
536 - Heat
9
537 - Electricity & electronics
8
538 - Magnetism
3
539 - Modern physics
11
540 - Chemistry & allied sciences
562
541 - Physical chemistry
244
542 - Techniques, equipment & materials
11
543 - Analytical chemistry
71
546 - Inorganic chemistry
45
547 - Organic chemistry
202
548 - Crystallography
9
549 - Mineralogy
9
550 - Earth sciences
3
551 - Geology, hydrology & meteorology
17
553 - Economic geology
2
570 - Life sciences; biology
14
571 - Physiology & related subjects
47
572 - Biochemistry
94
576 - Genetics & evolution
6
577 - Ecology
31
578 - Natural history of organisms
2
579 - Microorganisms, fungi & algae
9
580 - Plants (Botany)
24
581 - Specific topics in natural history
4
582 - Plants noted for characteristics & flowers
1
589 - [Unassigned]
1
590 - Animals (Zoology)
3
600 - Technology
24
610 - Medicine & health
58
611 - Human anatomy, cytology & histology
1
612 - Human physiology
22
613 - Personal health & safety
5
614 - Incidence & prevention of disease
4
615 - Pharmacology & therapeutics
99
616 - Diseases
49
617 - Surgery & related medical specialties
1
618 - Gynecology, obstetrics, pediatrics & geriatrics
5
620 - Engineering & allied operations
169
621 - Applied physics
53
623 - Military & nautical engineering
1
624 - Civil engineering
1
627 - Hydraulic engineering
1
628 - Sanitary & municipal engineering
7
629 - Other branches of engineering
3
630 - Agriculture & related technologies
11
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