Classification
YFF - Industrial safety regulations
20
CAU - Laboratory and safety engineering in chemistry
13
UAU - Fire, fire protection, safety at the workplace, prevention of accidents
12
TIG - Reliability, safety, quality control
10
UVC - Environmental chemicals, hazardous materials - general aspects
10
TIF - Industrial ( occupational ) safety
9
TAT - Engineering Standards
6
YEF - Law on hazardous materials
6
THH - Machines
4
UXL - Radiation protection - general aspects
4
UXP - Radioactive materials - transport, safety
4
UXS - Radioactive waste management
4
YEJ - Chemicals legislation
4
HYG - Occupational medicine, sports medicine
3
TNO - Nuclear reactor safety
3
YFA - Labour legislation
3
CAE - Chemistry - general
2
TEA - Electrical engineering - general
2
THJ - Machining
2
UVA - Environmental chemicals, hazardous materials - comprehensive works
2
UXPH - Nuclear warfare and protection
2
UXPN - Nonproliferation, nuclear weapons
2
YRE - Risk assessment
2
CAV - Chemicals, chemical reagents
1
CXX - Hydrogen production - chemistry and technology
1
ETF - Fuel cells - general
1
HPA - Drug lists, pharmacopoeias, pharmacologic glossaries
1
HPT - Toxicology
1
HYB - Public health, health politics
1
LAQ - Laboratory and safety engineering in biology
1
LTU - Genetic engineering
1
LVE - Food science - general
1
TEDD - Electric power transmission
1
TEJ - Electric devices, mechanical devices, magnets, dielectrics
1
THJL - Laser tooling
1
THP - Pressure vessels, boilers, pipes
1
TKA - Civil engineering - general
1
TKB - Civil engineering - buildings
1
TKJ - Traffic
1
TNJB - Nuclear reactor materials
1
TNK - Nuclear reactor components - general
1
TNL - Nuclear fuel, nuclear fuel elements - general
1
TNP - Nuclear reactor reliability, inspection, testing
1
TNR - Nuclear reactor licensing, decommissioning, dismantling, demolition
1
TNT - Management of nuclear materials
1
UCJ - Environmental protection - general aspects
1
UCQ - Environmental technology
1
UEDH - Policy of nonproliferation
1
USGK - Waste incineration
1
UUG - Environmental aspects of genetically modified organisms, viruses, genes
1
more ...