BS ISO 9932:2021 – TC
$134.27
Tracked Changes. Paper and board. Determination of water vapour transmission rate of sheet materials. Dynamic sweep and static gas methods
| Published By | Publication Date | Number of Pages |
| BSI | 2021 | 106 |
This document describes general test methods for determining the water vapour transmission rate of sheet materials by means of a dynamic gas method or a static gas method. Depending on the method and specific apparatus employed, materials up to 38 mm thick and with water vapour transmission rates in the range from 0,05 g/(m2·d) to 65 g/(m2·d) can be tested. The basis of the function of the instrumental techniques is briefly described. Advice on calibration is given in Annex B.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 60 | undefined |
| 68 | 1 Scope 2 Normative references |
| 69 | 3 Terms and definitions |
| 71 | 4 Symbols and abbreviations |
| 73 | 5 Performance testing of aerodynamic characteristics 5.1 External leakages 5.1.1 Test installation 5.1.2 Test procedure 5.1.2.1 General |
| 74 | 5.1.2.2 Specificity for units with ducted inlet and/or outlet (Category B, C or D) |
| 75 | 5.1.2.3 Specificity for units with free inlet and outlet (Category A) 5.1.2.4 Result 5.2 Air flow/pressure performance 5.2.1 General |
| 76 | 5.2.2 Test Installation 5.2.2.1 General |
| 77 | 5.2.2.2 Specificity for exhaust or supply ventilation units with multi-inlets or multi-outlets 5.2.2.3 Specificity for roof exhaust fans 5.2.3 Test procedure 5.2.3.1 General |
| 78 | 5.2.3.2 Determination of external static pressure difference 5.2.3.3 Determination of maximum air volume flow and corresponding pressure |
| 79 | 5.2.3.4 Determination of reference air volume flow and reference pressure |
| 80 | 5.2.3.5 Measurement of air flow/pressure curves for ducted ventilation units 5.2.3.6 Measurement of air flow for non-ducted ventilation units |
| 81 | 5.3 Air flow sensitivity |
| 82 | 5.4 Indoor/outdoor airtightness 6 Energy 6.1 Performance testing of electrical power 6.1.1 Testing method 6.1.2 Electrical power input at reference and maximum air volume flow 6.1.3 Assessment of part load energy efficiency (optional) 6.2 Operable mode 6.3 Standby mode |
| 83 | 7 Performance testing of acoustic characteristics 7.1 General |
| 85 | 7.2 Noise radiated through the casing of the unit LWc 7.2.1 General 7.2.2 Test Installation |
| 86 | 7.2.3 Measurements |
| 87 | 7.3 Radiated sound power level in the indoor or outdoor space – LWi and LWo 7.3.1 General 7.3.2 Test Installation 7.3.2.1 General 7.3.2.2 Reverberant room method 7.3.2.3 Anechoic or semi-anechoic room method |
| 88 | 7.3.2.4 Free field method |
| 89 | 7.3.3 Measurements 7.4 In-duct sound power level of the unit 7.4.1 General 7.4.2 Test Installation |
| 91 | 7.4.3 Measurements 7.5 Airborne sound insulation 7.5.1 General 7.5.2 Test Installation |
| 92 | 7.5.3 Measurements 8 Test results 8.1 Test report 8.2 Product specifications |
| 93 | 8.3 Leakages 8.4 Air flow/pressure curve 8.5 Air flow sensitivity for non-ducted ventilation units 8.6 Indoor/outdoor airtightness for non-ducted ventilation units 8.7 Energy 8.8 Acoustic characteristics |
| 96 | Annex A (normative)Connection box(es) |
| 98 | Annex B (normative)Evaluation of maximum air volume flow and pressure |
| 99 | Annex C (normative)Examples for the evaluation of reference pressure |
| 100 | Annex D (informative)Assessment of part load energy efficiency |
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