ДСТУ EN ISO 29462:2023 Полевые испытания устройств фильтрации в системе общей вентиляции на эффективность удаления in situ по размеру частиц и перепаду давления (EN ISO 29462:2022, IDT; ISO 29462:2022, IDT)

ДСТУ EN ISO 29462:2023
(EN ISO 29462:2022, IDT; ISO 29462:2022, IDT)

Польові випробування пристроїв фільтрування у системі загальної вентиляції
на ефективність видалення in situ за розміром частинок та  та
перепадом тиску

 
   
 
 
     
Не є офіційним виданням.
Офіційне видання розповсюджує національний орган стандартизації
(ДП «УкрНДНЦ» http://uas.gov.ua)

Contents

Foreword

Introduction

1 Scope

2 Normative references

3 Terms, definitions, and abbreviated terms

3.1 Terms and definitions

3.2 Abbreviated terms

4 Test equipment and setup

4.1 Particle counter

4.2 Diluter

4.3 Pump

4.4 Sampling system

4.4.1 General

4.4.2 Sampling probes

4.4.3 Sampling lines

4.4.4 Sampling locations

4.4.5 Valve (manual or automatic)

4.4.6 Isoaxial sampling nozzle

4.4.7 Flow meter

4.5 Air velocity measurement instrument

4.6 Relative humidity (RH) measurement instrument

4.7 Temperature measurement instrument

4.8 Resistance to airflow measurement instrument

4.9 Test equipment maintenance and calibration

5 Site evaluation

5.1 General

5.2 Filter installation pre-testing inspection

5.3 Approval for testing

6 Test procedure

6.1 Air velocity

6.2 Relative humidity (RH)

6.3 Temperature

6.4 Resistance to airflow

6.5 Removal efficiency

6.5.1 Removal efficiency tests

6.5.2 Sampling method

6.6 Sampling probes

6.6.1 Location of sampling probes

6.6.2 Location of upstream sampling probes

6.6.3 Location of downstream sampling probes — Filter efficiency test

6.6.4 Location of downstream sampling probes — System efficiency test

7 Expression of results

7.1 General information

7.2 Data collection

8 Errors and data analyses

8.1 General

8.2 Relative humidity (RH)

8.3 Air temperature

8.4 Aerosol composition

8.5 Uniformity of aerosol concentration

8.6 Coincidence errors — Particle counter

8.7 Particle losses

9 Calculation of results

9.1 Calculation of removal efficiency

9.1.1 General

9.1.2 Dataset sample average

9.1.3 Minimum upstream concentration

9.1.4 Particle size range efficiency

9.1.5 Average efficiency by particle size

9.2 Calculation of uncertainty

9.2.1 General

9.2.2 95 % confidence limit

9.3 Coefficient of variation (Cv)

10 Optional enhanced test system

10.1 Application of enhanced test system

10.2 Principle of the enhanced test system

10.3 Determination of the corrected particle size

10.4 Presentation of results

Annex A (informative) Filter installation pre-testing inspection form

Annex B (informative) Approval for testing form

Annex C (informative) Example of how to complete testing

Bibliography