Noise and Vibrations
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This document discusses noise, vibration, and their prevention in the workplace. It defines noise as changes in air pressure perceived by the ears, which can cause temporary or permanent hearing loss. Most countries limit workplace noise exposure to 80-90 dB(A) over an 8 hour period. It also describes two types of vibrations - those transferred to hands and arms, which can cause white finger syndrome, and whole body vibrations. Preventative measures for both include reducing the source of noise and vibrations through equipment design and maintenance, isolating workers using barriers and personal protective equipment, and limiting exposure time through job rotation.
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Hand-Arm Vibration (HAV) is vibration transferred from powered tools to a worker's hands and arms, which can damage nerves and blood vessels if exposure is great enough. Sources of HAV include powered tools used in construction, manufacturing, forestry and other industries. The amount of HAV is measured in acceleration levels, with levels above 3.5 m/s^2 considered unsafe for more than 8 hours per day. Symptoms of HAV damage include finger numbness, pain, and blanching. Preventive steps include using vibration-dampened tools, gloves, and taking regular breaks to reduce exposure time.
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Hearing Conservation Training Program by U.S. Navy’s Public Safety Center
The Navy Hearing Conservation Program aims to prevent noise-induced hearing loss. It involves identifying noise hazardous areas, implementing engineering controls to reduce noise levels when possible, posting hazard signs, providing hearing protection, and conducting medical monitoring with audiograms. Key program elements include conducting sound level surveys to determine hazardous noise areas, considering engineering controls first before resorting to personal protective equipment, using double hearing protection in very loud areas over 104dB, and giving all naval personnel baseline and periodic audiograms.
OHH 01 Noise & Vibration.pptx
Physical hazards consists of occupational noise, vibration, inappropriate illumination, ventilation, ionizing and non ionizing radiation etc. Our hearing sensory will cause serious defects by noise and vibration
Hearing loss prevention
This document discusses hearing loss prevention and noise-induced hearing damage. It notes that 30 million Americans are exposed to dangerous noise levels daily and hearing loss is the most common occupational disability. While generally painless, noise-induced hearing loss is permanent but 100% preventable. It describes how noise is measured in decibels and discusses engineering and administrative controls to reduce noise hazards, with hearing protection devices as a last resort. The document provides guidance on proper use of earplugs and muffs and emphasizes the responsibilities of both employees and management to implement hearing protection programs.
OSHA Occupational Noise Training by San Diego State University
This document provides an overview of an occupational noise and hearing conservation program. It discusses noise exposure limits and the need for engineering and administrative controls to limit noise levels. When noise levels exceed permissible limits, hearing protection devices must be provided and worn. It outlines the key elements of a hearing conservation program, including noise monitoring, audiometric testing, training, and record keeping. The purpose of the program is to monitor workers' noise exposures and detect any noise-induced hearing loss so that further controls or protections can be implemented to prevent additional loss and protect workers' hearing.
NOISE INDUCED HEARING LOSS ~ Shri.Dr.Ch.Ramanachary Ji, MS ENT
NOISE INDUCED HEARING LOSS !
~ Shri.Dr.Ch.Ramanachary Ji, MS ENT,
Professor and HOD Prathima Institute of Medical Sciences,
Karimnagar, Telangana State, India
Hearing conservation ppt
This document discusses occupational hearing loss prevention. It covers topics like permissible noise exposure limits, types of hearing protection devices, audiometric testing procedures, and training requirements. The goal is to educate about noise-induced hearing loss and how to implement controls and testing to protect worker hearing.
Noise pollution
original ppt credits to dr yoganand. uploading again as a part of syllabus. i dont claim any authorship
Occupational Hearing-Conservation-Training
This document provides an overview of occupational noise exposure and hearing conservation training. It notes that about 30 million American workers are exposed to hazardous noise on the job and that noise-induced hearing loss is a common occupational hazard. The document defines noise, discusses how exposure can lead to temporary or permanent hearing loss, and outlines the anatomy of the ear. It also covers signs of hearing loss, types of hearing protection devices, proper fitting and use of devices, audiometric testing requirements, and access to information about noise exposure standards.
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Company profile lorea printing
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We are 100% Export Oriented Garments printing factory in Chittagong of Bangladesh. Quality is our trademark. We belong to the best quality screen-printing on any kind of fabric in this region. Our factory site is a spacious one and we have an arrangement of the latest technology in screen-printing having the most modern set up of machinery and equipment. Apart from this, we have a set up of efficient stuff, specialized technicians, creative designers, skilled printers and above all an excellent administration so as to perform the printing works up to the quality our valued customers require. What we do is teamwork to maintain the quality of printing to the International Standard and we have a wide reputation for specializing in quality screen-printing to our valued customers from different parts of the world.
Company profile lorea printing
Edit
We are 100% Export Oriented Garments printing factory in Chittagong of Bangladesh. Quality is our trademark. We belong to the best quality screen-printing on any kind of fabric in this region. Our factory site is a spacious one and we have an arrangement of the latest technology in screen-printing having the most modern set up of machinery and equipment. Apart from this, we have a set up of efficient stuff, specialized technicians, creative designers, skilled printers and above all an excellent administration so as to perform the printing works up to the quality our valued customers require. What we do is teamwork to maintain the quality of printing to the International Standard and we have a wide reputation for specializing in quality screen-printing to our valued customers from different parts of the world.
Bangladesh labor act 2006 english
This document provides a summary of key amendments made to the Bangladesh Labour Act of 2006 through subsequent legislation.
The key amendments include: [1] Expanding the definition of "partial disablement"; [2] Adding a definition for "agricultural worker"; [3] Modifying the definition of "gratuity" to include wages for 30 days or 45 days depending on length of service.
The document provides context for these legislative changes by reproducing the relevant sections of the original Bangladesh Labour Act of 2006 that were amended.
Bangladesh labour law (amendment) 2013
The document discusses the benefits of exercise for mental health. Regular physical activity can help reduce anxiety and depression and improve mood and cognitive function. Exercise causes chemical changes in the brain that may help protect against mental illness and improve symptoms.
Ir introduction
This document defines industrial relations and discusses the key actors and forces that influence industrial relations. It begins by defining industrial relations as the complex relationship between employers and employees in an industrial organization, as defined by several experts. It identifies the three main actors in industrial relations as workers and their organizations (e.g. trade unions), management, and the government. It then discusses the social, political, economic, and psychological forces that influence the patterns of industrial relations. Finally, it outlines conditions necessary for good industrial relations, such as a history of cooperation, economic and social satisfaction of workers, enlightened labor unions, and government policy and legislation.
Safety and Health Signalization
Safety signs are used to draw attention to potential hazards in the workplace. There is no single universally accepted safety sign system, but the main systems in use are ISO, ANSI, and EU. Safety signs must be clearly visible, installed at a suitable height, and located where genuine dangers exist. Different types of signs convey different types of information - prohibition signs indicate prohibited actions, mandatory signs require certain behaviors like PPE use, and warning signs provide risk information. Gas cylinder signs use standardized color codes along with detailed labels to identify contents, as color alone varies between locations.
Personal Protective Equipment(PPE)
PPE is protective equipment meant to protect against workplace hazards and risks. It includes equipment for the eyes and face, hearing, respiration, hands, head, body, and feet. While PPE reduces risk, general safety measures and collective protection are preferred when possible. Employers must provide appropriate PPE to employees, ensure its proper use, and provide training on PPE requirements. Employees must correctly use and maintain assigned PPE.
Ergonomics Practice
This document discusses ergonomics and how to optimize work efficiency while considering human limitations. It defines ergonomics as the science focusing on adapting equipment, machines, and the environment. There are constant interactions between humans and their work, influenced by environmental and human factors. Lighting, noise, vibrations, and climatic conditions can impact workers and measures are discussed to mitigate their effects. Physical and mental strain from tasks are examined along with measures to prevent issues like static strain from prolonged muscle tension or dynamic strain from repetitive motions. Specific guidelines are provided for sitting, standing, lifting loads, and creating an ergonomic office workspace.
Asbestos Safety
Asbestos is a mineral fiber that was commonly used in building materials for its resistance and insulation properties but poses extreme health risks if inhaled. It can cause lung diseases like asbestosis and cancers after long exposure. Asbestos is only a risk if disturbed or removed from fixed structures. National legislation prohibits asbestos in new products and requires proper handling and disposal of asbestos-containing waste to prevent exposure. If asbestos is detected on a worksite, work must stop immediately and safety experts must assess and advise on preventive measures before any further action.
Radiation Safety
This document summarizes different types of radiation, including ionizing radiation like alpha, beta, and gamma rays emitted from radioactive substances, and non-ionizing radiation like ultraviolet and infrared rays. It outlines the risks radiation can pose, such as damaging cells or causing burns and cancer, and safety measures to mitigate risks like increasing distance from sources, limiting exposure time, and using protective clothing and glasses. Professional exposure requires additional precautions like wearing dosimeters to monitor exposure levels and undergoing regular medical exams.
Electrical Safety
This document discusses electrical safety risks and safe practices. It notes that electricity can cause electrocution or indirect injuries and death through explosions. Key factors that determine the risk are voltage, resistance, and current intensity as defined by Ohm's Law. Materials have different resistivity levels and water is highly conductive. Safe practices include proper equipment use and maintenance, isolation from power sources when working, use of personal protective equipment, and ensuring good grounding and insulation.
Safety For Special Work
Welding involves bonding materials using heat and requires special safety measures to prevent risks such as electrocution, fire and explosion, and UV radiation or poisoning from welding smoke. Proper insulation, ventilation and protective equipment are needed. When welding with flammable gases, areas must be clear of combustibles and screens used, with fire extinguishers nearby. Special attention is needed for welding at heights or in confined spaces.
Work at Height
Work at height poses serious injury risks from falls. Collective protection like guardrails and safety nets are preferred over personal protective equipment. Specific precautions are required for different work sites like roofs, walls, and floor openings to prevent falls. Proper equipment selection and maintenance also helps control risks, such as only using ladders suitable for the task and in good condition, having scaffolding erected by specialists, and qualifying personnel to operate elevated work platforms. Fall protection systems must be worn with many types of equipment.
TRIP, SLIP AND FALL Safety
This document discusses trip, slip, and fall hazards. It identifies common causes like human error, environmental factors, cleaning practices, flooring types, footwear, contamination, and obstacles. It provides rules to help prevent falls, such as not running and avoiding obstructions. Prevention strategies include eliminating dangers, preventing issues, warning about risks that can't be removed, good design, maintenance, clear markings, safe stair and ladder use.
Hoist,Lift and Bear Safety
This document discusses safe practices for lifting, hoisting, and relocating loads. It addresses proper use of lifting equipment such as hoists, tackles, chains, and slings. Regulations require operators be trained and equipment certified and inspected. Risks of injury from improper lifting techniques are high, so employers must provide lifting aids or mechanical equipment to limit hazards. When lifting manually, always bend knees, keep the load close, and lift with straight back to avoid injury.
Work Equipment,Machinery and Tools Safety
This document provides safety guidelines for working with various types of equipment, machinery, and tools. It outlines general preventative measures like proper training, use of personal protective equipment, and ensuring work areas are clean, well-lit and uncluttered. Specific guidelines are given for safe operation of simple hand tools, powered tools, drills, grinders, circular saws, and processes for isolating and restarting equipment. The key focus is on training, maintenance, use of safety features, and wearing appropriate protective gear to prevent injuries.
confined spaces
This document discusses confined spaces and safety precautions. A confined space is closed off or partially enclosed with limited entry/exit points. Working in these spaces poses risks like fire/explosion, hazardous substances, suffocation, poisoning and electrocution. Precautions include identifying hazards, atmospheric testing, ensuring two-person entry with communication, limiting time spent, valid permits, PPE, ventilation, and prohibiting under-18s. Special safety measures are needed for electrical work, moving parts, welding, and using flammable/toxic materials.
fire and explosions
This document discusses fire and explosions, including:
1. The fire triangle requires three elements - fuel, oxygen, and an ignition source. Different types of combustion exist depending on the combustion rate.
2. Factors that influence fire include minimum ignition temperature, auto-ignition temperature, flammable ranges, gas densities, and catalysts.
3. Fires are classified A-F based on their fuel. Proper extinguishing agents must be selected depending on the fire type to safely put it out.
dangerous substances
This document discusses dangerous substances and their proper handling. It defines dangerous substances as products that can harm people or the environment when used. There are 12 classes of dangerous substances including toxic, flammable, corrosive, and carcinogenic substances. Absorption usually occurs through inhalation in the workplace. Effects depend on exposure factors and can be acute or chronic. Risk management includes elimination, substitution, isolation, ventilation, training, and proper personal protective equipment to minimize exposure. Personal hygiene like handwashing and changing clothes is important. Hazard labels and safety data sheets communicate substance risks.
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Noise and Vibrations
- 1. MODULE 18-noise and vibrations SAFE COMPANY
- 2. NOISE I Concept: Change in air pressure which is perceived by our ears. •The sound level is determined by the pressure difference in the sound waves. This is measured in decibel (dB). Logarithmic scale. •There are various methods to determine sound level. The most effective method is by using a sound meter. •Noise can cause irritation and a temporary or even permanent loss of hearing (no cure). •Loss of hearing is a gradual danger. Signs. •Hearing tests are recommended
- 3. NOISE II Exposure: •Hearing damage can occur when people have prolonged exposure during a working lifetime to around 80 dB(A). •Most countries have introduced legislation to minimize the exposure to workplace noise - usually around 90dB(A). •Sometimes 2 limits are specified in the legislation: an "action level" (noise reduction measures should be taken) and an absolute limit value (workers should not be exposed under any circumstances). •Daily exposure of 8 hrs to 80 dB(A): the employer should provide hearing protection.
- 4. NOISE III • From 85 dB(A): measures to reduce the noise, identifying areas and ensuring that hearing protection is worn. • Workers should not be exposed to level in the range 87-90 dB(A). • Exposure to a peak value of 140 dB(A) is prohibited. • Actions: noise assessment (modification), engineering and administrative controls.
- 5. NOISE IV Preventative measures: Reduce sound (machines, work method, isolators, sound damping material, maintenance, speed of work process), Shield source (soundproof hoods or screens), Damping sound (absorbent material). •Types of PPEs: wadding or pods, plugs, universal ear plugs, osteoplastic and ear muffs, ear buds. •Adequate for the level of sound, insert correctly, PPE clean, check regularly, good maintenance, not shared, good fit, compatible with other equipment. Muffs: vertical, good seal.
- 6. VIBRATIONS The frequency is measured in Hertz (Hz). Humans are most sensitive to vibrations between 2 and 10 Hz. Two types of vibrations: Vibrations transferred to hand and arm joints (hand-arm vibrations). White finger. Vibrations transferred to the entire body (body vibrations) Symptoms of white finger: special cold, ability decrease, pain in hands and arms, loss of sensibility. Causes: vibrating tools, noise, smoking and diabetes.
- 7. VIBRATIONS II Prevention: •Appropriate design of machines. Appropriate tools. •Acquisition of materials and vehicles that cause the least vibrations. •Machines well maintained. •Using vibration damping hand clasps and vibration damping gloves. •Limit the exposure duration. Avoid if suffering white finger. •Job rotation •Avoid cold