GB/T 17225-2017Hygienic requirements of microclimate for heating classroom in middle and elementary school (English PDF)

Foreword

This standard was drafted in accordance with the rules given in GB/T 1.1-2009.

This standard replaces GB/T 17225-1998 "primary and middle school classroom heating temperature standard", this standard compared with GB/T 17225-1998 The main technical changes are as follows.

--- Standard name was changed to "primary and secondary heating classroom micro-climate health requirements";

--- Modify the standard scope of use (see Chapter 1, 1998 edition Chapter 1);

--- Increasing the normative references (see Chapter 2);

--- Added and revised some terms and definitions (see Chapter 3, Chapter 2 of the 1998 edition);

--- Modify the classroom health and temperature and humidity requirements (see 4.1 and 4.2, 1998 version 3.1 and 3.2);

--- Modify the classroom temperature, humidity and wind speed measurement method (see Chapter 5, 1998 edition Chapter 4).

1 Scope

This standard specifies the heating area primary and middle schools winter heating classroom micro-climate health requirements and determination of indicators.

This standard applies to heating central heating facilities in general ordinary primary and secondary schools and secondary vocational schools, vocational and technical schools classrooms.

Non-centralized heating area primary and middle school classrooms can refer 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 document. For undated references, the latest edition (including all amendments) applies to this document.

GB/T 18204.1 public places health inspection methods - Part 1: Physical factors

3 Terms and definitions

The following terms and definitions apply to this document.

4 Health requirements

4.1 During the study period, the temperature in the middle of the classroom (0.8m ~ 1.2m from the ground) is 18 °C ~ 22 °C; the horizontal and vertical temperature difference Should not exceed ± 2 °C. […]