Wyniki wyszukiwania - BazTech

1

Firefighters' protective clothing - water cleaning method vs liquid CO2 method in aspect of efficiency

Szmytke Ewelina, Brzezińska Dorota, Machnowski Waldemar, Kokot Szymon

Architecture Civil Engineering Environment

|

2022

|

Vol. 15, no. 2

169--176

EN

Multilayer material of firefighters’ Personal Protective Equipment (PPE) creates obstacles in toxins disposal while washing. This leads to long-term exposure and health risks to firefighters. The University of Leuven conducted experiments that showed the highest concentrations of toxins in the bodies of firefighters who wore the most contaminated clothes. In contrast a non considerable increase of toxins was observed in the group using LCO2 decontaminated clothes. Another study run in Finland in 2018 analyzed water cleaning of PPE and concluded that it was not efficient in providing safe and clean firefighters’ clothing. To check the efficiency of LCO2 cleaning, a set of laboratory tests on worn-out Polish fire gear was undertaken. The results presented in this paper confirmed that the clothes were clean enough to consider them safe for use.

2

A CB Protective Firefighter Turnout Suit

Barker R., Deaton S., Liston G., Thompson D.

International Journal of Occupational Safety and Ergonomics

|

2010

|

Vol. 16, No. 2

135--152

EN

This paper describes research that developed a prototype chemical and biological (CB) protective firefighter suit. It is presented as a case study demonstrating an integrated systems approach to designing, developing and evaluating a protective clothing ensemble based on end user requirements. It includes a discussion of the process that was used to gain an understanding of firefighter performance needs for a structural turnout suit that also incorporated chemical protection. It describes the design features of the turnout suit that were developed to meet these expectations as well as the program of testing and evaluation used to characterize garment performance. It discusses ensemble level performance evaluations in instrumented fire manikin tests and man-in-stimulant test procedures. It describes studies conducted to determine the impact of prototype garment design features on heat stress, wear comfort and ergonomic function in structural firefighting applications.

3

Study of the Effect of Material Assembly on the Moisture and Thermal Protective Performance of Firefighter Clothing

Cui Z., Zhang W.

Fibres & Textiles in Eastern Europe

|

2009

|

Vol. 17, no. 6 (77)

80--83

EN

Heat protection and moisture comfort are important for firefighter protective clothing. In this study, the thermal protective performance (TPP) and water vapour transmission rate (WVTR) were measured for 16 assemblies. It was established that outer heat resistant fabric and the moisture barrier have significant effects on the TPP rating of assemblies. The moisture barrier also has a strong influence on the water vapour transmission rate of assemblies, and the WVTR of three-layer assemblies is much lower than that of single layer material. At the same time, the low moisture permeability of any layer will lead to a low WVTR of the turnout system. Considering thermal protection and moisture comfort, the optimal assembly of the overall materials is A1B1C2.-application.

PL

Zabezpieczenie termiczne oraz transport wilgoci są ważnymi czynnikami, które muszą być brane pod uwagę przy produkcji ubrań strażackich. Testowano 16 zestawów ubrań określając skuteczność ochrony termicznej oraz szybkość transportu pary wodnej. Określono, że zewnętrzna tkanina odporna na temperaturę i zapewniająca wodoszczelność ma znaczący wpływ na skuteczność termiczną ubrania. Bariera wodoszczelna ma również olbrzymi wpływ na transport wilgoci przez trójwarstwowy strój strażacki, w efekcie różniący się znacznie od ubrania jednowarstwowego. Jednocześnie niska przepuszczalność pary wodnej każdej z warstw prowadzi do słabej przepuszczalności całego systemu. W pracy określono optymalne zestawy użytych materiałów.