Scope
DIN 45680
Low-Frequency Noise Measurement and Assessment
DIN 45680 specifies procedures for measuring and evaluating low-frequency noise (typically 8 Hz to 160 Hz) immissions in buildings and indoor environments. Low-frequency noise from sources such as wind turbines, industrial equipment, traffic, and HVAC systems can cause annoyance and health effects even at sound pressure levels below conventional noise limits. The standard defines frequency-weighted assessment methods, measurement locations, and evaluation criteria specific to low-frequency phenomena. Accreditation for this test method enables laboratories to conduct specialized assessments required for wind energy projects, industrial operations, and building acoustics investigations in sensitive environments.
What it measures
- Sound pressure levels in the low-frequency range (8–160 Hz)
- Low-frequency weighted acceleration and vibration metrics
- Frequency content and tonal characteristics of low-frequency sources
- Indoor sound field distribution and room resonance effects
- Infrasound component presence and magnitude
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DIN EN ISO 389-7
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BS EN ISO 389-7
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NF EN ISO 389-7
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UNI EN ISO 389-7
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UNE EN ISO 389-7
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NEN EN ISO 389-7
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DIN EN ISO 226
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BS EN ISO 226
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NF EN ISO 226
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UNI EN ISO 226
🇪🇸
UNE EN ISO 226
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NEN EN ISO 226
1,868
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20
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VDE 0113-201
VDE 0113-202
DIN EN 60204-1
EN 61508-1:
VDE 0803-1
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ID136
DIN EN 137
100 C>T, 124 G>A, 137_138
> 140
Amyloid β 1-42
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DIN EN ISO 15106-3
DIN EN ISO 1522
DIN 30720-1: 2016-02
DIN 30720-2: 2009-10
DIN 30722-1: 2021-12
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DIN EN ISO 11357-4
IEC 61037
DIN EN ISO 13850
DIN EN ISO 13855
ISO 14119
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IFA Kalibrierlaboratorium
Active
Eigenrauschen
−60 dB
Frequenzbewertung mit
akustischen Signalen
elektrischen Signalen
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DIN 58620: 2007-02
DIN 58621: 2011-10
DIN 58647-7: 1997-12
ID136
> 140
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IEC 61400-12
IEC 61400-12-1
IEC 61400-12-2
IEC 61400-12-3
IEC 61400-12-5
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Railway brakes — conditions for homologa
− Durchfluss von Flüssigkeiten
− Strömungsgeschwindigkeit von Gasen
− Widerstandsthermometer
− Temperatur-Transmitter, Datenlogger
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ADP
ASPI
TRAP
Amiodaron, Desethylamiodaron
Mycophenolsäure
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Devonport Royal Dockyard
Active
Specific Values 1
RF Power
RF Attenuation 10 MHz to 1 GHz
Other values -20 dBm to +20 dBm
Devonport Royal Dockyard
Active
BS 4206:1967 (superseded)
ISO 5173
ISO 7438
BS EN ISO 9606-2:2004
BS 131-5:1965
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Diagenom
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Chromosomensatz (angeboren)
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Adrenogenitales Syndrom
Angelman-Syndrom (15q11-Region, UBE3A)
Mikrodeletionen; AZFa-c)
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Diagnos MVZ
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HbA1c
Differentialblutbild, maschinell
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Kleines Blutbild
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Diatec Diagnostics
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AUDIOMETRIC EQUIPMENT
Attenuator linearity
Microphones
EAR SIMULATORS
Class LS, 1 and 2
Diehl Metering
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Volumen strömender 0,0005 m
− Durchfluss von Flüssigkeiten
0,025 m
Wasserzähler und 0,001 m
Durchflusssensoren
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DIN EN ISO 7730
EPA 6020
DIN EN ISO 6888-1
ISO 14698-1
ISO 4832
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Absolutdruck p *
Vickers hardness test (ISO 6507)
Flüssigkeitsvolumen *
variablem Volumen
aufnehmern sowie
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Staber & Kollegen
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Blutbild groß
Thrombozyten
Urinsediment
Natrium
Kalium
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Kreatin
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Nitisinon (NTBC), Succinylaceton
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Druck
Active
Gas pressure (absolute)
Hydraulic pressure (gauge)
Gas pressure (gauge)
(At low current)
Specific values (continued)
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Druck *
Negativer und
positiver Überdruck -0,01 bar
Positiver Überdruck p e
> 0,015 bar
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Duravit
Active
*6095991, BAG3 [OMIM *6038831
(-13910T>C) rs4988235
- PiM rs6647, PiZ rs28929474, rs17580
DIN EN 997
DIN EN 13407
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DynaGreen Environmental UK
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DIN EN 14791
IEC 60519-11
BS EN ISO 16911-1:2013 using
DIN EN 14792
DIN EN 13126-19
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