Wyniki wyszukiwania - BazTech

Ograniczanie wyników

Znaleziono wyników: 2

Liczba wyników na stronie

Wyniki wyszukiwania

Wyszukiwano:
w słowach kluczowych: automatic welding filter

Sortuj według:

Ogranicz wyniki do:

Application of a Photochromic Dye in an Automatic Welding Filter

Pościk A., Wandelt B.

International Journal of Occupational Safety and Ergonomics

2009

Vol. 15, No. 3

243--254

The main purposes of this study were to select a photochromic dye and to develop an active welding filter with a photochromic layer. A series of functionalized spirobenzopyranoindolins were synthesized and their photophysical and photochemical properties were investigated in a solution using absorption and emission spectroscopy. Time-resolved fluorescence spectroscopy measurements were used to characterize the decays and rate constants of fluorescence emission. One dye was selected as a suitable photoactive compound in automatic welding filters. A model of an active welding filter with a photochromic layer based on 1’,3’,3’-trimethyl-6-nitrospiro[2H-1-benzopyran-2,2’-indole] (6-nitroBIPS) was developed. The paper presents the results of tests of the filter conducted according to EN standards.

Review of Research Studies of Ergonomic Aspects of Selected Personal Protective Equipment

Szczecińska K., Łężak K.

International Journal of Occupational Safety and Ergonomics

2000

Zeszyt Specjalny

143--151

This article is a review of research studies conducted in the Central Institute for Labour Protection (CIOP) on ergonomic aspects of personal protective equipment (PPE) design and use. Research was related to, among other things, a comparison of body strain and work time limitation for users wearing gas-tight and drill suits. Some other studies were connected with the biophysical properties of clothing materials for medical use. On the basis of the measurement results, a proposal of clothing construction with an optimum combination of protection and comfort was created. Research leading to the development of test methodology concerning automatic welding filters with switchable luminous transmittance is also conducted n CIOP. The article also brings up the subject of designing new PPE assuring a high level of comfort. A modei of material to be used under tight protective clothing, an inflammable harness for working at a height, and a model of intelligent clothing that will assist human thermoregulation processes during physical effort are examples of new PPE.