Coal — Determination of nitrogen — Semi-micro Kjeldahl method
Specifies a method of determining the nitrogen content of hard coal, brown coal and lignite by the semi-micro Kjeldahl method. Replaces the third edition.
Surge arresters - Part 5: Selection and application recommendations - Section 1: General
Provides recommendations for the selection and application of surge
arresters to be used in three-phase systems with nominal voltages
above 1kV. It applies to non-linear resistor type gapped surge
arresters as defined in IEC 60099-1 and to gapless metal-oxide surge
arresters as defined in IEC 60099-4.
The contents of the corrigendum of April 1996 have been included in this copy.
Solid mineral fuels — Determination of total sulfur — High temperature combustion method
Gives a method of the determination of the total sulfur content of hard coal, brown coal, lignite and coke by a high temperature combustion method. Replaces the second edition.
Specifies requirements for lighting chains fitted with series or
parallel connected incandescent lamps for use indoors or outdoors
on supply voltages not exceeding 250 V.
The contents of the interpretation sheets 1 of March 2001 and the interpretation sheets 2 and 3 of July 2003 have been included in this copy.
Environmental testing - Part 2: Tests - Test Kb: Salt mist, cyclic (sodium, chloride solution)
Determines the suitability of components and equipment for use or exposure in a salt-laden atmosphere.
It has the status of a horizontal standard in accordance with IEC Guide 104.
The contents of the corrigendum of July 1996 have been included in this copy.
