NT Methods Archive

Here you can find and download all published NT Methods.

NT Methods Files

File size: 21.37 KB Download

Building gaskets: Contact and migration stain (NT BUILD 112)

NT BUILD 112

  • This test method is used to study the risks of staining involved in contact between a building gasket and painted or varnished surfaces, plastic coatings or similar. In openable windows, for instance, discolouration of the paint or varnish is usually considered undesirable.

File size: 20.60 KB Download

Building gaskets: Resistance to solvents, salt spray, cleaning agents and other chemicals (NT BUILD 111)

NT BUILD 111

  • This test method is used to check if gaskets are sufficiently resistant to solvents, salt spray, cleaning agents etc.

File size: 24.23 KB Download

Building gaskets: Compression set (NT BUILD 109)

NT BUILD 109

  • This test method has been developed to make it possible to study the degree of permanent deformation a gasket will attain when it is kept compressed or deformed over time.

File size: 21.46 KB Download

Building gaskets: Deformation resistance (NT BUILD 108)

NT BUILD 108

  • This test method is used to find if a building gasket has a sufficiently low resistance to deformation when it is installed or during actual use.

File size: 17.47 KB Download

Building gaskets: Rain penetration (NT BUILD 107)

NT BUILD 107

  • This NORDTEST method may be used to study the ability of a building gasket to seal against driving rain.

File size: 20.73 KB Download

Building gaskets: Water absorption (NT BUILD 106)

NT BUILD 106

  • This test method has been developed to check the water absorption of building gaskets.

File size: 28.56 KB Download

Plastics, aged: Thickness of oxidized layer (NT BUILD 095)

NT BUILD 095

  • This NORDTEST METHOD covers the determination of the oxidation degree of an aged plastic.

File size: 23.37 KB Download

Walls: Strength and deflection under static point load (NT BUILD 067)

NT BUILD 067

  • This NORDTEST METHOD specifies a test method to determine the strength and deflection of the interior face of walls when exposed to a static point load.

File size: 64.80 KB Download

Walls: Resistance to hard body impact (NT BUILD 066)

NT BUILD 066

  • This NORDTEST METHOD specifies a test method to determine the strength of walls when exposed to concentrated impact loads (e.g. simulating blows from a broomstick).

File size: 112.58 KB Download

Floors in bathrooms: Watertightness (NT BUILD 065)

NT BUILD 065

  • The scope of this NORDTEST method is to test the watertightness of floors.

File size: 98.71 KB Download

Vertical building surfaces: Resistance to glancing blows (NT BUILD 063)

NT BUILD 063

  • The purpose of this NORDTEST METHOD is to measure the resistance of vertical building surfaces to glancing blows. For testing purposes such glancing blows are simulated by means of an impact body having a hard and rough edge.

File size: 47.52 KB Download

Partitions under horizontal static load: Rigidity (NT BUILD 062)

NT BUILD 062

  • This NORDTEST METHOD specifies a test procedure for testing the rigidity of partitions under horizontal static load.

File size: 26.72 KB Download

Cladding materials: Indentation hardness (NT BUILD 059)

NT BUILD 059

  • This NORDTEST method specifies a test method for determining the indentation hardness of a building surface exposed to a static point load.

File size: 40.81 KB Download

Walls in bathrooms: Watertightness and resistance to water and moisture (NT BUILD 058)

NT BUILD 058

  • The scope of this suitability of walls NORDTEST method is to evaluate the - especially walls containing wood or wood based materials - in bathrooms or other rooms with a similar exposure to water. The test is intended to simulate the effect of long-term use.

File size: 316.99 KB Download

Floor materials: Indentation with loading - General short-time testing (NT BUILD 042)

NT BUILD 042

  • The scope of the method is to determine the degree of indentation on floor materials.

File size: 1.93 MB Download

Acoustics: Determination in the field of structure-borne sound source strength of building service equipment (NT ACOU 117)

NT ACOU 117

  • This substitution method may be used as a survey method in the field to determine structure borne sound source strength of machines and building service equipment with light-framed structures or elastic supports on heavy-weight concrete floors.

File size: 1.95 MB Download

Road vehicles: Determination of noise emission (NT ACOU 116)

NT ACOU 116

  • This method specifies how to determine the noise emission characteristics of road vehicles to obtain input data to be used in prediction methods for road traffic noise.

File size: 166.17 KB Download

Measurement of occupational noise exposure of workers: Part ii: engineering method (NT ACOU 115)

NT ACOU 115

  • This Nordtest method specifies an engineering method for determination of occupational noise exposure at work places. The method contains different approaches for carrying out the measurements.

File size: 102.68 KB Download

Measurement of occupational noise eaxposure of workers: Part i: survey method (NT ACOU 114)

NT ACOU 114

  • This Nordtest Method specifies survey methods for determination of occupational noise exposure at work places.

File size: 210.44 KB Download

Acoustics: Prominence of impulsive sounds and for adjustment of Laeq (NT ACOU 112)

NT ACOU 112

  • Noise with prominent impulses is more annoying than continuous types of noise (without impulses or tones) with the same equivalent sound pressure level. Therefore an adjustment KI is added to the measured LAeq, if prominent impulses are present in the noise, to adjust for the extra annoyance due to the impulses.

File size: 138.62 KB Download

Acoustics: Human sound perception – Guidelines for listening tests (NT ACOU 111)

NT ACOU 111

  • It is the intention of these guidelines to provide a tool to increase the effectiveness and reliability of listening tests.

File size: 80.81 KB Download

Acoustics: Human sound perception – measurement positions for measurement of loudness (NT ACOU 110)

NT ACOU 110

  • The traditional physical descriptor, the A-weighted sound pressure level, LPA, is often not an adequate objective descriptor for perceived sound.

File size: 129.12 KB Download

Vehicles: Determination of immission relevant noise emission (NT ACOU 109)

NT ACOU 109

  • This NORDTEST method specifies determination of the noise emission of vehicles to obtain input data to be used in prediction methods for road traffic noise.

File size: 143.50 KB Download

Acoustics: In situ measurements of permanently installed public address systems (NT ACOU 108)

NT ACOU 108

  • This Nordtest method specifies a practical test method for in situ measurements of permanently installed public address systems.

File size: 84.96 KB Download

Acoustics: Framework for the verification of environmental noise calculation software (NT ACOU 107)

NT ACOU 107

  • This NORDTEST method gives the framework for the verification and subsequent type approval/certification and issuing a declaration that software intended for calculation of environmental noise levels yields results in conformity with a specific calculation method.

File size: 574.58 KB Download

Acoustics: Assessment of annoyance caused by vibrations in dwellings from road and rail traffic by means of socio-vibrational and social surveys (NT ACOU 106)

NT ACOU 106

  • This Nordtest Method is a guide to the content, conduct, text file output describing the survey, procedures, sites and objective measures, and the data file output of sociovibrational and social surveys measuring annoyance due to vibrations in dwellings from road and rail traffic.

File size: 264.85 KB Download

Air terminal devices: Acoustic transmission loss (NT ACOU 105)

NT ACOU 105

  • The method describes a test arrangement and procedure for measuring transmission loss without flow of duct-mounted air terminal devices. This is a laboratory substitution method, which is to be applied in a reverberation room.

File size: 240.88 KB Download

Ground surfaces: Determination of the acoustic impedance (NT ACOU 104)

NT ACOU 104

  • This NORDTEST method specifies a procedure for the determination of the normalised specific acoustic impedance of flat outdoor ground surfaces in situ.

File size: 138.80 KB Download

Machines - vibration: Mechanical mounting of accelerometers (NT ACOU 103)

NT ACOU 103

  • This Nordtest method specifies methods for accelerometer mounting to be used for measurement of vibration with limited peak amplitudes. It shall be used as a complement to IS0 5348:1998 in which basic information is given.

File size: 42.81 KB Download

Building elements - facade elements and facades: Field measurements of airborne sound insulation - Loudspeaker method using mls noise signals (NT ACOU 102)

NT ACOU 102

  • This NORDTEST method specifies a field method using a special kind of sound source signal, known as a “Maximum Length Sequence”.

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