DIN 45642 specifies standardized methods for measuring noise immissions from road and rail traffic at receiver locations. This test quantifies sound pressure levels and frequency characteristics of traffic noise in the environment, typically at building facades or sensitive areas. Municipalities, environmental authorities, and transportation agencies require this test to assess compliance with noise limit values and evaluate environmental impact. Accreditation ensures measurements are reproducible, comparable, and defensible in regulatory and legal proceedings. Proper measurement following this standard is critical for noise action planning and protection of public health.
What it measures
Sound pressure level (Leq, LA) from traffic sources
Maximum sound pressure levels (Lmax, LAmax)
Frequency spectrum analysis
Temporal noise characteristics
Compliance with national noise limit values
๐ฉ๐ช
DIN EN ISO 3744
๐ฌ๐ง
BS EN ISO 3744
๐ซ๐ท
NF EN ISO 3744
๐ฎ๐น
UNI EN ISO 3744
๐ช๐ธ
UNE EN ISO 3744
๐ณ๐ฑ
NEN EN ISO 3744
๐ฉ๐ช
DIN EN ISO 1996-1
๐ฌ๐ง
BS EN ISO 1996-1
๐ซ๐ท
NF EN ISO 1996-1
๐ฎ๐น
UNI EN ISO 1996-1
๐ช๐ธ
UNE EN ISO 1996-1
๐ณ๐ฑ
NEN EN ISO 1996-1
Environmental protection and monitoringUrban planning and infrastructureRailway and road transport operatorsBuilding and real estate developmentPublic health and occupational health
Related Standards
ISO 3744Acoustics โ Determination of sound power levels of noise sources using sound pressure
ISO 1996-1Acoustics โ Description, measurement and assessment of environmental noise
DIN 45645Fluctuation strength โ Calculation and evaluation of noise containing impulses