Anläggningsarbete

Kommittébeteckning: SIS/TK 248 (Vägutrustning)
Källa: CEN
Svarsdatum: den 26 okt 2017
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This European Standard specifies requirements for the following road traffic noise reducing devices (as defined in 3.1):

— noise barriers (as defined in 3.4),

— claddings (as defined in 3.5),

— covers (as defined in 3.6), and

— added devices (as defined in 3.7).

These devices may include both acoustic and structural elements, where:

— an acoustic element is an element whose primary function is to provide a noise reducing device with sound insulation, diffraction and/or sound absorption, it is a part of noise reducing device to be used along roads, and

— a structural element is an element whose primary function is to support or hold in place acoustic elements, it is a part of noise reducing device to be used along roads. Depending upon the design of the noise reducing device, structural elements may potentially be tested separately from acoustic elements.

They may be made of different materials for which specific standards are to be applied in accordance with the specifications prescribed hereafter. Some of the materials may contain dangerous substances, the reason why all the materials are declared.

This European Standard identifies the relevant characteristics of road traffic noise reducing devices, the corresponding methods of evaluation and specifies the provisions on evaluation of conformity and marking.

This European Standard covers acoustic, non-acoustic and long-term performance, but not aspects such as resistance to vandalism or requirements of visual appearance.

This European Standard provides Annex ZA for the declaration of performance of all types of Noise Reducing Devices and for their elements. When prepared for an element, the declaration of performance has to be included through a cascading process in the declaration of performance of the final / installed Noise Reducing Device.

This European Standard does not cover road surfaces or the airborne sound insulation of houses.

Ämnesområden: Körbana
Kommittébeteckning: SIS/TK 202 (Vägmaterial)
Källa: CEN
Svarsdatum: den 2 nov 2017
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Ämnesområden: Körbana
Kommittébeteckning: SIS/TK 202 (Vägmaterial)
Källa: CEN
Svarsdatum: den 2 nov 2017
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This draft European Standard specifies methods of moulding specimens from bituminous mixtures by impact compaction. Such specimens are primarily used to determine bulk density and other technological characteristics e.g. Marshall stability and flow according to EN 12697-34.

This draft European Standard applies to bituminous mixtures (both those made up in a laboratory and those resulting from work site sampling), with not more than 15 % by mass retained on the 22,4 mm sieve and none on the 31,5 mm sieve.

Ämnesområden: Körbana
Kommittébeteckning: SIS/TK 202 (Vägmaterial)
Källa: CEN
Svarsdatum: den 2 nov 2017
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This draft European Standard specifies the Semi-Circular Bending (SCB) test method to determine the tensile strength or fracture toughness of an asphalt mixture for the assessment of the potential for crack propagation. The results of the test can be used to calculate:

— the maximum load that the material containing a notch (crack) can resist before failure;

— when the presence of a notch is critical.

It should be noted that the test only describes a method to determine the resistance to crack propagation of an asphalt mixture. The crack propagation phase describes the second part of failure mechanism during dynamic loading. The first phase, which is the crack initiation phase, is mainly covered by the fatigue test (EN 12697-24).

Ämnesområden: Körbana
Kommittébeteckning: SIS/TK 202 (Vägmaterial)
Källa: CEN
Svarsdatum: den 2 nov 2017
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This draft European Standard specifies test methods for determining the maximum density of a bituminous mixture (voidless mass). It specifies a volumetric procedure, a hydrostatic procedure and a mathematical procedure.

The test methods described are intended for use with loose bituminous materials containing paving grade bitumens, modified binders or other bituminous binders used for hot mix asphalt. The tests are suitable for both fresh or aged bituminous materials.

Samples may be supplied as loose material or as compacted material; the latter should be separated first.

NOTE General guidance on selection of a test procedure to determine the maximum density of a bituminous mixture is given in Annex A.

Kommittébeteckning: SIS/TK 254 (Järnvägar)
Källa: CEN
Svarsdatum: den 23 nov 2017
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1.1 This European Standard specifies a direct method for characterizing the surface roughness of the rail and wheel associated with rolling noise ("acoustic roughness"), in the form of a one-third octave band spectrum.

This standard describes a method for:

a) selecting measuring positions along a track or selecting wheels of a vehicle;

b) selecting lateral positions for measurements;

c) the data acquisition procedure;

d) measurement data processing in order to estimate a set of one-third octave band roughness spectra;

e) presentation of this estimate for comparison with limits of acoustic roughness;

f) comparison with a given upper limit in terms of a one-third octave band wavelength spectrum;

g) the measuring system requirements.

1.2 It is applicable to the:

a) performance testing of reference track sections in relation to the acceptance test for noise emitted by railway vehicles;

b) performance testing of track sections in relation to noise emitted by railway vehicles;

c) acceptance of the running surface condition only in the case where the acoustic roughness is the acceptance criterion;

d) assessment of the wheel surface condition as an input for the acoustic acceptance of brake blocks;

e) assessment of the wheel and rail roughness as input to the calculation of combined wheel rail roughness;

f) diagnosis of wheel-rail noise issues for specific tracks or wheels;

g) assessment of the wheel and rail roughness as input to rolling noise modelling;

h) assessment of the wheel and rail roughness as input to noise source separation methods.

1.3 It is not applicable to the:

a) measurement of roughness (rail roughness, wheel roughness or combined roughness) using an indirect method;

b) analysis of the effect of wheel-rail interaction, such as a "contact filter";

c) approval of rail and wheel reprofiling, including rail grinding operations, except for those where the acoustic roughness is specifically the approval criterion (and not the grinding quality criteria as provided in e.g. EN.

d) characterization of track and wheel geometry except where associated with noise generation.

Kommittébeteckning: SIS/TK 198 (Vatten- och avloppssystem)
Källa: CEN
Svarsdatum: den 4 dec 2017
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This European Standard specifies the principles of design, sizing, installation, identification, commissioning and maintenance of greywater systems with the purpose of use of greywater on-site.

It applies preferably for the use of treated greywater for:

— WC flushing;

— garden watering;

— laundry;

— cleaning purposes.

This European Standard also specifies the minimum requirements for greywater systems.

Excluded from the scope of this European Standard are:

— the use as drinking water and for food preparation;

— the use for personal hygiene purposes;

— direct reuse systems for external use e. g. garden watering;

— product design for specific system components;

— industrial effluents;

— heat recovery and cooling demands.

NOTE Conformity with this European Standard does not exempt from compliance with the obligations arising from local or national regulations.