Classification
YFF - Industrial safety regulations
60
TAT - Engineering Standards
26
TEDF - Electric power application
18
TEA - Electrical engineering - general
8
YFA - Labour legislation
4
TED - Electric power - industrial aspect
3
TEF - Electric machines, electric cables
3
TIG - Reliability, safety, quality control
3
UAU - Fire, fire protection, safety at the workplace, prevention of accidents
3
HYB - Public health, health politics
2
HYG - Occupational medicine, sports medicine
2
THD - Design and construction in mechanical engineering
2
THH - Machines
2
THHD - Machine parts
2
YDN - Industrial code
2
CAU - Laboratory and safety engineering in chemistry
1
HPM - Pharmaceutical industry
1
LTU - Genetic engineering
1
TCLD - Electromagnetic compatibility, pulse technique
1
TEK - Electric experiments, reliability and technology
1
TIF - Industrial ( occupational ) safety
1
TKB - Civil engineering - buildings
1
UCA - Environmental problems, man and environment - general aspects
1
UVA - Environmental chemicals, hazardous materials - comprehensive works
1
UVC - Environmental chemicals, hazardous materials - general aspects
1
UXL - Radiation protection - general aspects
1
YEB - Legislation on genetic engineering
1