Machine made mineral fibre MMMF
4.2 Machine made mineral fibre MMMF
Machine Made Mineral Fibres MMMF includes ceramic fibers, special purpose fibers and continuous filament fibers. The material is normally made from molten glass, rock or slag. The material exhibits good resistance to heat and chemicals and can be woven. It is therefore widely used in thermal and acoustic insulation of buildings and process plant and as structural fire protection in the form of rolls, slabs, blown cavity wall filling, plasterboard laminates and pipe insulation. Use of MMMF has accelerated as asbestos materials have been phased out. Since their introduction in the late 1800s it has been recognised that mineral wools cause irritations of the skin and eyes, and that at excessively dusty conditions they lead to irritation of the upper respiratory tract. The irritation of skin and eyes is caused by coarse fibres. While most skin becomes resistant after a transitory period, some people need to take precautions to protect their skin and a small number need to move to other work. Studies in which non-asbestos mineral fibres were implanted into the chests of laboratory animals have shown that mesothelioma tumours result, but other experiments in which animals inhaled high concentrations of mineral wool fibres have not indicated an association with excess occurrence of lung tumours. Inhalation studies on animals have not led to clinically significant fibrosis. A large American industry mortality study showed no cases of mesothelioma. In 45 this study an excess of lung cancer was observed in small groups of workers with more than 30 years since first exposure to mineral wool, but there was no correlation between either the intensity or length of exposure and the excess of lung cancer. In fact, X-ray and lung function studies on current workers have not shown exposure to mineral wool to be associated with lung abnormality.4.3 Welding Fume
Parts
» Basic Principles is Occupational Hygiene 2010
» History Basic Principles is Occupational Hygiene 2010
» The Importance of Occupational Hygiene
» Dermatitis Physical damage Skin
» Musculo Skeletal System Nervous System
» The circulatory system Endocrine system
» The Blood Respiratory system
» The Gastro Intestinal Tract The Liver
» Introduction Terms Basic Principles is Occupational Hygiene 2010
» Physical Form Dose Route of entry absorption
» Metabolism Excretion Response to toxins
» Crystalline silica Basic Principles is Occupational Hygiene 2010
» Machine made mineral fibre MMMF
» Welding Fume Isocyanates Basic Principles is Occupational Hygiene 2010
» Wood Dust Pharmaceuticals Basic Principles is Occupational Hygiene 2010
» Petroleum Products Basic Principles is Occupational Hygiene 2010
» Mining Metal use and refining
» Define the extent of the assessment Gather Information
» Introduction Hazard and Risk Expert Systems and Control Banding
» Sampling Techniques Types of Sampling
» Particle size Elements of a sampling system
» Sampling Equipment Sampling for gases and vapours
» Sampling Methods Fixed Position Sampling
» Sampling Equipment Sampling Records Introduction
» Setting of Hygiene Standards and Exposure Limits Biological Monitoring Guidance Values
» EliminationSubstitution Isolation Segregation Engineering Controls - Ventilation
» Administrative Controls Types of Control Measures
» Information, Instruction and Training Personal Protective Equipment PPE
» Vision X-rays Neurological tests Audiometry Types of Control
» General Considerations InletsHoods General Features of an LEV System
» Ductwork Air Cleaners General Features of an LEV System
» Legal requirements Regular Maintenance Thorough Examination and Testing
» Properties of Asbestos Uses of Asbestos Airborne Asbestos Fibres
» Health Hazards of Asbestos Asbestos Register .1 Function of the Asbestos Register
» Introduction to Biological Hazards
» Hepatitis B Blood Borne Diseases
» Anthrax ACDP Group 3 Leptospirosis Hazard group 2
» Moulds Pandemics Basic Principles is Occupational Hygiene 2010
» Genetic modification Background Basic Principles is Occupational Hygiene 2010
» Health Effects of Excessive Noise
» Addition of Sound Levels Frequency Analysis Decibel Weightings
» Assessment of Workplace Noise
» Control of Workplace Noise Protection of Personnel at Risk
» Exposure to Vibration Health Effects of Vibration
» Measurement of Vibration Heat Transfer from the Body
» Duration of Exposure Dry Bulb Temperature Mean Radiant Temperature Air Velocity
» Heat Stress Indices Thermal Comfort Cold Stress Introduction
» Infrared IR Radiation Laser Radiation Microwave Radiation
» Evaluation of Illumination Glare Good Illumination
» Evaluation of Non-Ionising Radiation Nature
» External and Internal Radiation Levels of Radiation Biological Effects of Ionising Radiation
» Uses of Radiation Industrial Measurement of Radiation Radiological Protection
» Health Surveillance Introduction Basic Principles is Occupational Hygiene 2010
» Making a Manual Handling Assessment Methods of Reducing Risk
» Workplace Risk Assessment Repetitive Tasks
» Possible Effects from Using DSE Postural Problems Upper limb pains and discomfort
» Making an Assessment Identification of DSE Users Minimum Requirements for Workstations
» Motivation and Behaviour Modification
» Symptoms of stress Assessment of Stress
» Management of Stress Basic Principles is Occupational Hygiene 2010
» In-house services Occupational Hygiene Practice
» Consultancy Occupational Hygiene Practice
» State agencies Research and Teaching
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