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This European Standard describes the reference method used for type testing and in case of dispute for determining the resistance to wear of coarse aggregates (main text) and aggregates for railway ballast (Annex A). For other purposes, in particular factory production control, other...
This European Standard describes the reference method used for type testing and in case of dispute for determining the resistance to wear of coarse aggregates (main text) and aggregates for railway ballast (Annex A). For other purposes, in particular factory production control, other...
This European Standard specifies general criteria to demonstrate by testing that newly constructed complete railway vehicles conform with standards or other normative documents. This standard is intended to be used as technical instructions for the processing of tests which may be needed for...
Requirements for d.c. supplied electronic ballasts formerly called transistorized ballasts.
Requirements for lamps with or without a red correcting fluorescent coating, operating an a.c. mains with a ballast complying with BS 4782.
This specification covers glass hydrometers of various scale graduation systems, as required by the ASTM test methods in which they are used. Hydrometers shall be of the constant-mass, variable-displacemen
This specification covers glass hydrometers of various scale graduation systems, as required by the ASTM test methods in which they are used. Hydrometers shall be of the constant-mass, variable-displacemen
This specification covers glass hydrometers of various scale graduation systems, as required by the ASTM test methods in which they are used. Hydrometers shall be of the constant-mass, variable-displacemen
This specification covers glass hydrometers of various scale graduation systems, as required by the ASTM test methods in which they are used. Hydrometers shall be of the constant-mass, variable-displacemen
This specification covers glass hydrometers of various scale graduation systems, as required by the ASTM test methods in which they are used. Hydrometers shall be of the constant-mass, variable-displacemen
This Japanese Industrial Standard specifies the classification of fluorescent lamps for general lighting service (hereafter referred to as fluorescent lamps), and light emitting diode (LED) module, self-ballasted LED lamps and non-integrated linear LED lamps with GX16t-5 cap (hereafter...
This specification covers glass hydrometers of various scale graduation systems, as required by the ASTM test methods in which they are used. Hydrometers shall be of the constant-mass, variable-displacemen
This specification covers glass hydrometers of various scale graduation systems, as required by the ASTM test methods in which they are used. Hydrometers shall be of the constant-mass, variable-displacemen
This specification is applicable to glass thermohydrometers of various scale graduation systems, intended for use in a variety of ASTM Test Methods. The thermohydrometers covered by this specification have larger maximum permissible scale errors than do their Hg-filled counterparts. It is up to the...
This method is used to determine combined wheel-rail roughness and track decay rates from rail vibration during the pass-by of a train. By combining sound pressure measurement from the same pass-by, a vibro-acoustic transfer function for rolling noise is determined. The track decay rate is a...
Applies to electrical insulation systems, specifies a short-time thermal and electrical evaluation procedure - applicable for devices with a supply voltage up to 1000 V (d.c./a.c./pulse), - using a wire-wound coil model; this model may be used for wire-wound applications, such as transformers,...
This International Standard specifies sample preparation methods for determining mercury levels in new tubular fluorescent lamps (including single capped, double capped, self-ballasted and CCFL for backlighting) containing 0,1 mg mercury or more. The intended resolution of the methods...
This part of IEC 61558 deals with the safety of small reactors for general applications. NOTE 1 Safety includes electrical, thermal and mechanical aspects. Unless otherwise specified, from here onward, the term transformer or reactor covers small reactors. This Part 2-20 is applicable to stationary...
IEC 60079-15:2010 specifies requirements for the construction, testing and marking for Group II electrical equipment with type of protection, 'n' intended for use in explosive gas atmospheres. This standard applies to electrical equipment where the rated voltage does not exceed 15 kV r.m.s. a.c. or...
