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NB/T 42140-2017 English PDF

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NB/T 42140-2017: Insulating liquids. Oil-impregnated paper and pressboard. Determination of water by automatic coulometric Karl Fischer titration
Status: Valid
Standard IDContents [version]USDSTEP2[PDF] delivered inStandard Title (Description)StatusPDF
NB/T 42140-2017English419 Add to Cart 4 days [Need to translate] Insulating liquids. Oil-impregnated paper and pressboard. Determination of water by automatic coulometric Karl Fischer titration Valid NB/T 42140-2017

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Basic data

Standard ID NB/T 42140-2017 (NB/T42140-2017)
Description (Translated English) Insulating liquids. Oil-impregnated paper and pressboard. Determination of water by automatic coulometric Karl Fischer titration
Sector / Industry Energy Industry Standard (Recommended)
Classification of Chinese Standard K15
Classification of International Standard 29.040.10
Word Count Estimation 18,110
Date of Issue 2017-11-15
Date of Implementation 2018-03-01
Adopted Standard IEC 60814-1997, MOD
Regulation (derived from) National Energy Board Bulletin 2017 No. 10
Issuing agency(ies) National Energy Administration
Summary This standard specifies the method for determining the moisture content of insulating liquids and oil-impregnated cellulose insulation materials by Karl Fischer automatic electric titration. The direct titration method is suitable for low viscosity insulating liquids with a viscosity of less than 100 mm ^ (2) / s at 40 �� C and a moisture content of more than 2 mg / kg. The gas extraction method is applicable to a high viscosity insulating liquid having a viscosity of more than 100 mm ^ (2) / s at 40 �� C and a moisture content of more than 2 mg / kg. The method for determining the water content in oil-impregnated paper and paperboard is suitable for oil-impregnated paper and oil-impregnated paperboard having a moisture content of 0.1% to 20%.

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