The "Unused Silicon Insulating Liquids for Electrical Purposes (GB/T 21218-2007/IEC 60836:2005)" is issued by the China National Standardization Management Committee of the General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China. This standard is under the jurisdiction of the National Insulation Materials Standardization Technical Committee (SAC/TC 51). This standard is developed for the first time. The main modifications are as follows: a) The word "this international standard" is changed to "this standard"; b) Removed the preface and introduction of IEC 60836:2005; c) The decimal point symbol "," is changed to ".", and the volume symbols "cm3" and "dm3" are changed to "mL" and "L"; d) Change "allowable values" to "requirements" in Table 1; e) The calculation formula for neutralization value is expressed in accordance with the provisions of GB/T 1.1-2000 and GB/T 20001.4-2000
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