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Database: 189759 (19 Oct 2025)
HJ/T 398-2007 English PDF
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HJ/T 398-2007
: Stationary source emission - Determination of blackness of smoke plumes - Ringelmann smoke chart
Status: Valid
Standard ID
Contents [version]
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Standard Title (Description)
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HJ/T 398-2007
English
449
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Stationary source emission - Determination of blackness of smoke plumes - Ringelmann smoke chart
Valid
HJ/T 398-2007
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Basic data
Standard ID
HJ/T 398-2007 (HJ/T398-2007)
Description (Translated English)
Stationary source emission - Determination of blackness of smoke plumes - Ringelmann smoke chart
Sector / Industry
Environmental Protection Industry Standard (Recommended)
Classification of Chinese Standard
Z25
Classification of International Standard
13.040.40
Word Count Estimation
14,158
Date of Issue
2007-12-07
Date of Implementation
2008-03-01
Regulation (derived from)
SEPA Notice No. 81 of 2007
Issuing agency(ies)
Ministry of Ecology and Environment
Summary
This standard specifies the determination of the Ringelmann blackness blackness diagram method, including the observation position and conditions of observation methods, calculation methods and standards Ringelmann blackness drawing specifications. This standard applies to emissions from stationary sources in gray or black smoke emission monitoring blackness mouth, does not apply to other colors flue gas monitoring.