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GB/T 17226-2017: Hygienic requirements of classroom ventilation in middle and elementary school
Status: Valid GB/T 17226: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 17226-2017 | English | 109 |
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3 days [Need to translate]
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Hygienic requirements of classroom ventilation in middle and elementary school
| Valid |
GB/T 17226-2017
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| GB/T 17226-1998 | English | 199 |
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2 days [Need to translate]
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Health standard of classroom ventilation in elementary and secondary school
| Obsolete |
GB/T 17226-1998
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PDF similar to GB/T 17226-2017
Basic data | Standard ID | GB/T 17226-2017 (GB/T17226-2017) | | Description (Translated English) | Hygienic requirements of classroom ventilation in middle and elementary school | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | C56 | | Classification of International Standard | 13.100 | | Word Count Estimation | 5,517 | | Date of Issue | 2017-11-01 | | Date of Implementation | 2018-05-01 | | Older Standard (superseded by this standard) | GB/T 17226-1998 | | Regulation (derived from) | National Standard Announcement 2017 No. 29 | | Issuing agency(ies) | National Health and Family Planning Commission of the People's Republic of China, Standardization Administration of China | GB/T 17226-2017: Hygienic requirements of classroom ventilation in middle and elementary school---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Hygienic requirements of classroom ventilation in middle and elementary school
ICS 13.100
C56
National Standards of People's Republic of China
Replacing GB/T 17226-1998
Primary and secondary school classroom ventilation requirements
Posted.2017-11-01
2018-05-01 implementation
National Health and Family Planning Commission of the People's Republic of China
China National Standardization Administration released
Foreword
This standard was drafted in accordance with the rules given in GB/T 1.1-2009.
This standard replaces GB/T 17226-1998 "primary and secondary school classroom ventilation standards", and GB/T 17226-1998 compared to the main technical
The changes are as follows.
--- Modify the standard name "primary and secondary school classroom ventilation requirements";
--- Partially modified the scope of the standard (see Chapter 1,.1998 edition of Chapter 1);
--- Added some terms and definitions (see 3.1 and 3.4);
--- Remove the number of classroom ventilation requirements (see.1998 version 3.2);
--- Modify the classroom indoor air carbon dioxide concentration requirements and the necessary ventilation requirements (see Chapter 4, Chapter 5,.1998 edition
3.1,3.3);
--- Modify the provisions of the classroom ventilation mode (see Chapter 7,.1998 edition Chapter 4);
--- Modify the classroom ventilation system, an increase of ventilation time (see Chapter 8,.1998 edition of Chapter 5);
--- Modify Appendix A content.
This standard is proposed and managed by the National Health and Family Planning Commission of the People's Republic of China.
This standard was drafted by Harbin Medical University, Peking University, Inner Mongolia Autonomous Region Hohhot Disease Prevention and Control Center.
The main drafters of this standard. Wang Yi Jun, Zhang Huiying, Ma Jun, Zhang Lin, Liang Shuang, Chen Sufen, Ulanqimuge.
This standard replaces the standards previously issued as.
--- GB/T 17226-1998.
Primary and secondary school classroom ventilation requirements
1 Scope
This standard specifies the average daily maximum allowable concentration of carbon dioxide in air in primary and secondary school classrooms and determination of methods, primary and secondary students need to change
Gas, classroom ventilation and ventilation system.
This standard applies to new construction, renovation, expansion and daily central heating in general classrooms, secondary professional, vocational and technical schools can be
According to use.
2 Normative references
The following documents for the application of this document is essential. For dated references, only the dated version applies to this article
Pieces. For undated references, the latest edition (including all amendments) applies to this document.
GB/T 18204.2 public places health inspection methods - Part 2. Chemical contaminants
GB 50099 primary and secondary school design specifications
3 Terms and definitions
The following terms and definitions apply to this document.
3.1
Daily average maximum allowable concentration maximumalowableconcentration-dailyaverage
The maximum allowable value of the mean concentration for any one day.
3.2
Classroom ventilation classroomventilation
The use of doors and windows of the gap, ventilation pipes, ventilation windows, etc., directly into the outdoor air, indoor air pollution replacement.
3.3
Necessary ventilation volume necessaryventilationvolume
To ensure the basic indoor air quality, to ensure the health of people the necessary ventilation.
According to equation (1) calculation.
Q =
K-K0
(1)
In the formula.
Q --- necessary ventilation, the unit is cubic meter per hour people [m3/(h · people)];
M --- exhaled carbon dioxide, in units of liters per hour [L/(h · people)];
K --- classroom indoor air maximum allowable concentration of carbon dioxide,%;
K0 --- outdoor air carbon dioxide concentration,%.
3.4
Classroom transom classroomtransom
The upper part of the classroom doors and windows for ventilation.
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