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JJG 291-2008

Chinese standards (related to): 'JJG 291-2008'
Standard IDContents [version]USDSTEP2[PDF] delivered inStandard Title (Description)See DetailStatusGoogle Book
JJG 291-2018English439 Add to Cart Days<=4 Dissolved Oxygen Meters JJG 291-2018 Valid JJG 291-2018
JJG 291-2008English155 Add to Cart 0--10 minutes. Auto immediate delivery. Verification regulation of dissolved oxygen meter with covered-membrane-electrode JJG 291-2008 Obsolete JJG 291-2008
JJG 291-1999English479 Add to Cart Days<=4 Verification Regulation of Film Electrode Dissolved Oxygen Meter JJG 291-1999 Obsolete JJG 291-1999
JJG 291-1982EnglishRFQ ASK Days<=3 (Chinese Industry Standard) JJG 291-1982 Obsolete JJG 291-1982

Standard ID JJG 291-2008 (JJG291-2008)
Description (Translated English) Verification regulation of dissolved oxygen meter with covered-membrane-electrode
Sector / Industry Metrology & Measurement Industry Standard
Classification of Chinese Standard A61
Classification of International Standard 17.020
Word Count Estimation 16,131
Date of Issue 2008-12-23
Date of Implementation 2009-06-23
Older Standard (superseded by this standard) JJG 291-1999
Drafting Organization Zhejiang Institute of Standardization
Administrative Organization National Technical Committee on Environment stoichiometric
Regulation (derived from) ?AQSIQ Announcement 2008 No.143
Issuing agency(ies) State Administration of Quality Supervision, Inspection and Quarantine
Summary This standard applies to real-time measurement of body surface potential heart-analog single-channel, multi-channel ECG initial verification and subsequent verification, This procedure does not apply to digital ECG machine, vector ECG, ECG and other nonlinear systems and ECG information processing and measuring instruments for special purposes.