DL/T 677-2009 (English Version) PDF

Scope: This standard specifies the technical requirements, inspection conditions and inspection methods for online conductivity, pH value, sodium ion, dissolved oxygen and silicate instruments in power plants. This standard is applicable to the acceptance inspection when the above-mentioned online chemical instruments are newly purchased in power plants and the measurement inspection during operation. Laboratory instruments may refer to this standard.

DL/T 677-2009 Referenced Document

DL/T 1029 Quality management guidelines for power plant water quality analysis instruments laboratories*， 2022-05-13 Update
DL/T 913 Guidelines for quality acceptance of water quality analysis instruments in power plants
GB/T 12148 Methods for analysis of water for boiler and for cooling Determination of total silicon Photometric method by conversion with hydrofluoric acid for low silicon
GB/T 12149 Determination of silica in water for industrial circulating cooling system and boiler*， 2017-09-07 Update
GB/T 13966 Terminology for analytical instruments*， 2013-11-21 Update
GB/T 14640 Determination of potassium and sodium in water for industrial circulating cooling system and boiler*， 2017-11-01 Update
GB/T 6903 Analysis of water used in boiler and cooling system—General rule*， 2022-03-09 Update
JB/T 8276 Preparation method of buffer solution for the measurement of pH
JJG 119 Laboratory pH (acidity) meter verification procedures*， 2019-06-25 Update
JJG 291 Dissolved Oxygen Meters*， 2018-02-27 Update
JJG 376 Verification Regulation of Electrolytic Conductivity Meters
JJG 822 Verification Regulation for Sodium Ionometer

2018 DL/T 677-2018 Checking and calibration code for on-line chemical analysis instrument of fossil fuel power plant
2009 DL/T 677-2009 Checking and calibration code for on-line chemical monitoring instrument of power plant
1999 DL/T 677-1999 Checking and calibration code for on-line chemical analysis instrument of fossil fuel power plant