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PubMed2002

Workers' understanding of chemical risks: electroplating case study.

BACKGROUND: There is limited research concerning how small companies in particular, respond to health and safety messages. AIMS: To understand individuals' knowledge and beliefs about chemical risks and to compare these with those of experts. METHODS: The use of chromic acid in particular, and also other chemicals associated with chrome plating were studied. All chromium plating firms were based in the West Midlands. The methodology involved initial face to face interviews (n = 21) with chromium platers, structured questionnaires (n = 84) to test the prevalence of beliefs identified in the interviews, an expert questionnaire, and a workshop to discuss findings. The responses of platers were compared with those of occupational health and safety experts. RESULTS: Although chromium platers appeared to understand the short term adverse effects of the chemicals to which they are exposed, their understanding of long term, or chronic effects appeared to be incomplete. They had good knowledge of acute effects based primarily on experience. Platers were aware of the hazardous nature of the chemicals with which they work, but did not draw distinction between the terms "hazards" and "risks". They had difficulties articulating the effects of the chemicals and how exposure might occur; although it is inappropriate to equate this with lack of knowledge. A significant minority of platers displayed deficiencies in understanding key technical terms used in Safety Data Sheets. CONCLUSIONS: This study provides a method which can be used to gain some understanding of workers' knowledge and beliefs about risks that they are exposed to in the workplace. The study also identifies gaps between the platers' knowledge and beliefs and those of experts. New risk information needs to be designed which addresses the information needs of platers using language that they understand.

Acute Disease↗
PubMed1992

[Experimental studies of electroplating-resin bonding systems].

Optimized conditioning of galvanically produced gold frameworks (Auro-Galva-Crown-System) by means of Silicoater, Silicoater MD and Rocatec techniques gives rise to a reliable bond to veneering resins. After experimental stress (thermocycling) the strength of the compound could be found between 17 and 26 MPa and SEM investigations of the contact zone showed no crevices.

Composite Resins↗
PubMed1964

[ELECTROPLATING].

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Electroplating↗
PubMed2005

Biosorption of zinc (II) using Spirogyra species from electroplating effluent.

Zinc was removed from the metal plating effluent with the biosorbent consisting of filamentous algae Spirogyra sp. The sorption was pH dependent with best adsorption at pH 2.5. The metal uptake increased from 3.9% (for no dilution) to 36.8% (for 10 times dilution), indicating that sorption increased with dilution of sample. The adsorption was faster at initial contact time, gradually decreased and remains constant after certain optimum time. Percentage removal of zinc increased from 20.3% to 63.6% with increase in the temperature from 25 degrees C to 35 degrees C but further increase resulted in the decrease in adsorption. Freundlich isotherm was applied and it holds good for the adsorption data.

Adsorption↗
PubMed1991

[The hygienic characteristics of the working conditions in the modern electroplating industry].

The contributors propose a set of newly performed hygienic studies in the widely developed technologies of electrotype, expound a complex of the hazardous occupational factors commonly encountered in modern galvanoplastics, contamination of the equipment, overalls and the skin with the metallic compounds contained in the galvanic electrolytes. Shops with non-isolated electrotype lines were characterized by the most unfavourable labour conditions.

Aerosols↗