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Friday, May 8, 2020 | History

2 edition of Methods of monitoring and evaluating airborne man-made mineral fibres found in the catalog.

Methods of monitoring and evaluating airborne man-made mineral fibres

Methods of monitoring and evaluating airborne man-made mineral fibres

report on a WHO Consultation, Copenhagen, 29 April-1 May 1980.

  • 2 Want to read
  • 28 Currently reading

Published by Regional Office for Europe, World Health Organization, Obtainable from WHO Publication Centre in Copenhagen, Albany, N.Y .
Written in English

    Subjects:
  • Minerals -- Toxicology -- Congresses.,
  • Inorganic fibers -- Toxicology -- Congresses.,
  • Synthetic fibers industry -- Health aspects -- Congresses.

  • Edition Notes

    SeriesEURO reports and studies ;, 48
    ContributionsWorld Health Organization. Regional Office for Europe., WHO Consultation on Methods of Monitoring and Evaluating Airborne Man-made Mineral Fibres (1980 : Copenhagen, Denmark)
    Classifications
    LC ClassificationsRA1231.M55 M48 1981
    The Physical Object
    Pagination53 p. :
    Number of Pages53
    ID Numbers
    Open LibraryOL3086936M
    ISBN 109289012145
    LC Control Number82188863

    Shipyard Mineral Wool (, Table Z) Respirable fraction: 5 mg/m 3 Total dust: 15 mg/m 3: Shipyard Inert or Nuisance Particulates (Mineral Dusts Table) 50 mppcf* (or 15 mg/m 3 whichever is the smaller) of total dust. Man-made mineral fibres This information is only available to paying isurv subscribers. In December , the European Commission set out the hazard classifications of mineral wools, RCFs and special purpose fibres (SPFs) in Directive 97/69/EC Classification, Packaging .

    Man‐made mineral fiber (MMMF) asbestos substitutes are mineral fibrous materials such as fibrous glass, rock wool, slag wool, and refractory (ceramic) fibers. It has been reported that the chemical composition and morphology of these substitute fibrous materials are similar to those of asbestos and, therefore, serious questions have been. The panels rely on the optical microscope to determine the levels of fibres in lung tissue, which readily show the larger blue crocidolite fibres but fail to see the fine white fibres. For instance, one of SPAID's cases shows one asbestos fibre was seen by this method, and using the electron microscope 8,, fibres of asbestos of all kinds.

    Current occupational exposures to man-made mineral fibers (MMMF), including refractory ceramic fibers (RCF), were measured as part of an exposure assessment program for an epidemiological study pertaining to cancer and mortality patterns of Ontario construction workers. The assessments were carried out at commercial and residential sites. A. Man-made mineral fibres; Man-made mineral fibres. This information is only available to paying isurv subscribers. A good deal of research has been undertaken into the possible health effects of the inhalation or ingestion of MMMF. To date, while statistical studies have shown conflicting results (probably the result of other factors such as.


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Methods of monitoring and evaluating airborne man-made mineral fibres Download PDF EPUB FB2

Methods of monitoring and evaluating airborne man-made mineral fibres. Copenhagen: Regional Office for Europe, World Health Organization, © (OCoLC) Document Type: Book: ISBN: OCLC Number: Notes. Get this from a library. Methods of monitoring and evaluating airborne man-made mineral fibres: report on a WHO Consultation, Copenhagen, 29 April-1 May.

A reference method for measuring the size distribution of airborne man-made mineral fibres in work place air, including rules for evaluating fibres that are branching, crossing or attached to other particles, has been published (World Health Organization, ). Samples for scanning electron microscopy are taken on filters that have a smooth.

Author(s): WHO/EURO Technical Committee for Monitoring and Evaluating Airborne MMMF. Title(s): Reference methods for measuring airborne man-made mineral fibres (MMMF): WHO/EURO MMMF reference Methods of monitoring and evaluating airborne man-made mineral fibres book monitoring concentration using a phase contrast optical microscope: determining size using a scanning electron microscope/ prepared by the WHO/EURO Technical Committee for.

DETERMINATION OF AIRBORNE FIBRE NUMBER CONCENTRATIONS current evaluation methods were compared and their differences iden- tified and analysed, with a view to understanding the effect of these differences on the results of counting airborne fibres.

Consensus was reached by the working group on a recommended method for. Determination of airborne fibre number concentrations: a recommended method, by phase- contrast optical microscopy (membrane filter method). pollutants, Occupational - analysis 2,Environmental monitoring - methods 3 Microscopy, Phase-contrast ISBN 92 4 1 (NLM Classification: WA ).

Man-made mineral fibre products release airborne respirable fibres during their production and use. In general, as the nominal diameter of man-made mineral fibre products decreases, both the concentration of respirable fibres and the ratio of respirable to total fibres increase.

Airborne Synthetic Mineral Fibres' in Technical Report on Synthetic Mineral Fibres and Guidance Note on the Membrane Filter Method for the Estimation of Airborne Synthetic Mineral Fibres, AGPS, Canberra, 2. Standards Australia, AS Workplace Atmospheres - Methods for Sampling and Gravimetric Determination of Inspirable.

Manmade Mineral Fibres A variety of inorganic materials are made into fine fibers and used for structural strengthening or insulation; they are known as man-made mineral fibers (MMMF). Types of man-made mineral fiber have names such as mineral wool (which includes rock wool, slag wool, and glass wool), continuous filament, superfine and.

The group of man-made mineral or vitreous fibres (MMMFs or MMVFs) includes glass wool, rock wool, slag wool, glass filaments and microfibres, and refractory ceramic fibres (RCFs).

MAN-MADE MINERAL FIBRES Engholm, G., Englund, A., Hallin, N. & von Schmalensee, G. () Incidence of respiratory cancer in Swedish construction workers exposed ta MM MF. ln: Biological Effectsof Man-made Mineral Fibres(Proceedingsofa WHO/ IARC Conference), VoL.

i, Copenhagen, W orld Health Organization, pp. Book Reviews: Biological Effects of Man Made Mineral Fibres. A report on a WHO/IARC Meeting.

Published by WHO from HMSO Publications Centre 51 Nine Elms Lane, London SW8 5DR. Price Sw. 12 Binding Paperback. ISBN: 92 1. Basalt fibres with a higher modulus of elasticity than glass fibres are available (see Table ).

Another important aspect of the basalt fibres is the potential for high biosolubility (biodegradability) with respect to many advanced man-made fibres (Di Ludovico et al., ; Dhand et al., ). Biosolubility (biodegradability) is a key. Chapter Man-made vitreous fibres Air Quality Guidelines – Second Edition WHO Regional Office for Europe, Copenhagen, Denmark, 4 Occurrence in air There are numerous man-made crystalline and amorphous substances that can release respirable fibres during handling (1–4).

Asbestos and other natural mineral fibres () and 77 Man-made mineral fibres (). The document aims at providing basic information to all concerned when implementing safety in the use of mineral and synthetic fibres other than asbestos.

It covers a wide range of materials: (i) man-made mineral fibres - insulation wools (rockwool. Similarly, the method of measuring airborne Man-made fibre concentrations is given in M "Man-made mineral fibre: airborne number concentration by phase contrast light microscopy".

The Health and Safety Commission have approved the following methods of measurements and calculations for determining fibre concentrations of MMMF.

MMMF are made by spraying or extruding molten glass, furnace slag, or mineral rock. Health concerns are based on the morphological and toxicological similarities between MMMF and asbestos, and the well-documented evidence that asbestos fibers can cause lung fibrosis (asbestosis), bronchial cancer, and mesothelioma in humans.

The main production methods used for man-made mineral fibres (MMMF) are drawing, a combination of blowing and centrifugal force, and flame attenuation. These methods determine the fibre sizes and the probability of occurrence of fibres within the respirable range.

HL Deb 01 December vol cc § p.m. § The Earl of Gosford rose to ask Her Majesty's Government whether they are satisfied with the methods of monitoring asbestos that are currently in general use and with the progress made in developing alternatives for asbestos.

§ The noble Earl said: My Lords, I am sorry that this Question has come on so late, but I am consoled by. Man-made mineraI fibres break predominantly across the fibre axis. They do not form fibri1s, as does chrysotile.

These differences in breakage characteristics explain why chrysotile in air is associated with a large number of submIcron-size fibres, while airborne man-made mineraI fibres are not. Optical microscopy can be used for routine.

The different methods used to assess the fibre size distribution of man-made mineral fibres are reviewed with special attention to the scanning electron microscope. In order to investigate to what extent the measurement of the fibre size distribution obtained from photomicrographs may differ from that obtained directly from the screen of a.Health, 8, Verbeck, S.

I. A., Buise-van Unnik, E. M. M. and Malten, K. E. () Itching in office workers from glass fibers, Contact Der- matitis 7, World Health Organization () Methods of monitoring and evalu- ation of airborne man-made mineral fibers. EURO Reports and Studies No. WHO Regional Office for Europe, Copenhagen.Reference methods for measuring airborne man-made mineral fibres Who Measurements of particle emissions from nanotechnology processes, with assessment of .