BS EN ISO 18640-1:2018+A1:2019
$189.07
Protective clothing for firefighters. Physiological impact – Measurement of coupled heat and moisture transfer with the sweating torso
| Published By | Publication Date | Number of Pages |
| BSI | 2019 | 48 |
This document provides a test method for evaluating the physiological impact of protective fabric ensembles and potentially protective clothing ensembles in a series of simulated activities (phases) under defined ambient conditions. This standard test method characterizes the essential properties of fabric assemblies of a representative garment or clothing ensemble for thermo-physiological assessment:
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dry thermal insulation;
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cooling properties during average metabolic activity and moisture management (dry and wet heat transfer);
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drying behaviour.
Default measurements are done on fabric samples representing the garment or protective clothing combination. Optionally and in addition to the standard test method, the same testing protocol can be applied to characterise more complex protective clothing ensembles including underwear, air layer and certain design features1. In addition, measurements on readymade garments are possible.
This test method is intended to be used to measure and describe the behaviour of fabric assemblies of a garment or clothing ensemble in response to a simulated series of activities under controlled laboratory conditions, with the results used to optimize garment combinations and material selection. Furthermore, this document together ISO 18640‑2, is intended to be used to describe the thermo-physiological impact of protective clothing but not the risk for heat stress under actual fire conditions. The results of this test can be used as elements of a risk assessment with respect to thermo-physiological load.
1 A study conducted by Empa (Swiss Federal Laboratories for Materials Science and Technology, Switzerland) showed good correlation between results of standard torso tests (without underwear and air layers on fabrics) to tests on fabrics with underwear, tests on fabrics with underwear and air layers and test on readymade garments (with underwear and with or without air layers) of the same material composition. Due to the added thermal insulation values of the additional layers direct comparison of results between different measurement configurations is not possible, however.
PDF Catalog
| PDF Pages | PDF Title |
|---|---|
| 2 | National foreword |
| 4 | European foreword Anchor 4 Foreword to amendment A1 |
| 5 | Annex ZA (informative) Relationship between this European Standard and the Essential Requirements of EU Regulation (EU) 2016/425 |
| 8 | Foreword |
| 9 | Introduction |
| 11 | 1 Scope 2 Normative references 3 Terms and definitions |
| 14 | 4 Symbols and abbreviations 5 Apparatus |
| 15 | 5.1 Sweating torso 5.1.1 General |
| 16 | 5.1.2 Heated cylinder 5.1.3 Thermal guard sections 5.1.4 Heating and temperature control 5.1.5 Temperature measurement 5.1.6 Simulation of perspiration 5.1.7 Wicking layer |
| 17 | 5.1.8 Balance torso weight 5.2 Computer, control system and data acquisition 5.2.1 General 5.2.2 Computer and measurement software 5.2.3 Control system 5.2.4 Data acquisition 5.2.5 Measurement control options |
| 18 | 5.3 Climatic chamber 5.3.1 General 5.3.2 Climatic chamber sensors 5.4 Fan system 5.5 Sweat water supply |
| 19 | 5.5.1 Gravimetric sweat water control system |
| 20 | 5.6 Simulation of air layers |
| 21 | 6 Sampling and test specimens 6.1 General 6.1.1 Size of samples 6.1.2 Type of test specimen 6.1.3 Garment/ensemble specification 6.2 Number of test specimens 7 Specimen preparation |
| 22 | 7.1 Pre-treatment 7.2 Conditioning 8 Measurement procedure 8.1 Test preparation 8.1.1 Preparation of climatic chamber 8.1.2 Wind speed |
| 23 | 8.2 Specimen testing 8.2.1 General |
| 24 | 8.2.2 Dressing the torso 8.2.3 Recording specimen identification and test observations 8.2.4 Starting the test |
| 25 | 8.2.5 Calculated values |
| 28 | 9 Test report 9.1 General 9.2 Specimen identification 9.3 Experiment conditions 9.4 Calculated results |
| 29 | 10 Maintenance and calibration 10.1 Maintenance 10.1.1 Sweat water tank 10.1.2 Valve checks 10.2 Calibration 10.2.1 General 10.2.2 Correction value for thermal resistance, Rct0 (torso) 10.2.3 Wicking layer |
| 30 | 10.2.4 torso temperature sensors 10.2.5 torso heating power 10.2.6 torso sweat rate 10.2.7 Environmental conditions 10.3 Experiments with a standard fabric (optional) |
| 31 | Annex A (normative) torso size and materials definition |
| 35 | Annex B (normative) Calibration |
| 37 | Annex C (informative) Example of data evaluation |
| 41 | Annex D (informative) Sample check list |
| 42 | Annex E (informative) Validation of the measurement device |
| 43 | Annex F (informative) Example Matlab code |
| 47 | Bibliography |
