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BGI 5162 PDF

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When operating fire prevention systems, the oxygen content of the air is reduced in the room, in accordance with the materials stored or the installations to be protected, in order to prevent the outbreak of fire. In order to avoid health hazards, protection measures must be undertaken as part of the risk assessment.

DGUV Information 205-007 – Working in oxygen-reduced atmospheres (bisher: BGI/GU…

These may be structural, technical, organisation and occupational health bgk. It describes the necessary protection measures in such areas. These requirements are the object of this information sheet and are reported therein. It is not important whether the duty is continuously performed by one employee or whether several employees must successively expose themselves to this area in order to perform their duties. With a normal O 2 proportion of approximately 21 vol.

If the O 2 proportion is reduced, the risk of fire is also reduced.

The functional principle bti the systems lies in reducing the oxygen content of the ambient air of the area to be protected. While keeping the same ambient pressure, the oxygen level of the ambient air is reduced by introducing nitrogen or nitrogen-enriched air. The areas concerned must therefore be closed off from the surrounding atmosphere.

The nitrogen or the nitrogen-enriched air required is generated using various technical procedures and introduced into the area to be protected. O 2 sensors permanently monitor the pre-defined oxygen concentration. The oxygen concentration is maintained constant by a setting. The oxygen monitoring system must be designed as a redundant system. The control is undertaken via no less than two oxygen sensors which are installed at different locations within the oxygen-reduced area.

A risk of fire within the meaning of this TRGS is the possibility that the safety or health of 516, other persons or the environment will be adversely affected because of the development or spread of a fire and related consequences such as heat or smoke.

The ignition threshold is the oxygen concentration whereby a flammable substance is no longer able to ignite under experimental conditions. Ignition threshold minus a safety distance. This distance considers the fact that the flammable substance can exist in the system under different temperatures and pressures than when determining the oxygen threshold concentration in the laboratory.

This distance takes account of spatial and temporal variations in the oxygen concentration resulting from operational factors, of the delay between triggering of protective measures, of the measurement error resulting from measurement technology factors and of the alarm delay of the measurement instrument monitoring the oxygen concentration.

This distance defines the reference value of a concentration regulator in order to prevent false alarms, with regard to the Oxygen level too high message.

This distance defines the reference value of a concentration regulator in order to avoid false alarms, with regard to the lower alarm value evacuation alarm. The significant physiological factor is the oxygen partial pressure po 2. When breathing air low in oxygen, depending on the selected oxygen concentration and the duration of stay, symptoms of acute altitude sickness can occur headache, fatigue, nausea, loss of appetite, dizziness.

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For this reason, uninterrupted exposure should not last more than several hours. By reducing the oxygen content of the breathing air and the resulting lower oxygen partial pressure, employees with advanced heart and circulatory disorders, respiratory and pulmonary disorders or blood disorders may be at risk.

The extent is determined by the severity of the disorder and the oxygen concentration. This fluctuation range is physiologically irrelevant and can therefore be accepted from a personal safety perspective.

These different concentrations also entail different bbgi for the persons in the protection area. According to this risk, the oxygen-reduced areas can be divided into four risk classes: The structural, technical, organisational and occupational health measures must be documented in the risk assessment the safety concept specific to each operation. The protection measures to bhi taken are determined by the level of reduction of the oxygen content in the atmosphere.

The measured oxygen concentration [in vol. Above this limit, the influence of altitude above bi level must be considered. For occupational health risk classification, the real altitude and the equivalent altitude produced by the system must be added.

The residual oxygen content must be 5612 as high as possible, which means only as low as is absolutely necessary for fire protection reasons.

No permanent workstations may be established in oxygen-reduced areas. Oxygen-reduced atmospheres Access by authorised personnel only Do not enter when alarm sounds!

The alarm must be heard from every location within the area with an oxygen-reduced atmosphere. This must be ensured by way of a redundant acoustic e.

If it has been ensured via the system that the oxygen concentration cannot fall below 13 vol.

The alarm must be signalled by way of an illuminated panel at all entrances to the oxygen-reduced areas see Figure 3. Visual alarms must be prominently signalled by way of uninterrupted illumination. A fault in the measurement and control system must be detected and signalled in good time. The measurement systems must be calibrated and maintained regularly by the manufacturer or by trained persons in accordance with the manufacturer s instructions and their work instructions. Calibration and maintenance must be documented.

The introduction of nitrogen into the room must be able to be switched off manually from a secure location at all times. It must be ensured that there is a homogeneous oxygen concentration throughout the oxygen-reduced area. The spreading of the oxygen-reduced atmosphere to other areas not intended for this e. These employees must be informed and instructed on the risks, protection measures and rules of conduct prior to taking up their duties and prior to the first time they enter rooms with oxygen-reduced atmospheres, and at regular intervals thereafter.

The instructions must be documented. The training can form a part of the general health and safety instructions. For rooms with oxygen-reduced atmospheres, it must be ensured that only authorised and instructed employees can enter the rooms access concept. The length of stay in areas with oxygen-reduced atmospheres must be kept as short as possible. The oxygen concentration in the oxygen-reduced area must be measured and logged at least every 10 minutes.

The results must be archived for at least one year. In the event of rescue measures, the rescue forces must be informed of the existence of an oxygen-reduced atmosphere before their intervention begins. This must be marked on the fire brigade plan.

It must be possible to contact persons outside the rooms with oxygen-reduced atmospheres e. If the alarm sounds, the room must be left immediately. If the discomfort subsides within no more than 30 minutes, the oxygen-reduced area can once again be entered.

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Otherwise, or if the symptoms re-occur, a doctor must be consulted before the oxygen-reduced area is accessed again. Risk classes and safety measures When working in rooms with a reduced oxygen content, the measures from Table 1 must be applied.

Risk class Oxygen concentration c in vol. Risk classification of hypoxia exposure and safety measures If defects are discovered that constitute a danger to persons, the oxygen-reduction system must be taken out of operation.

Fire protection must then be ensured by way of suitable alternative measures. This test must take place prior to commissioning.

Special operational circumstances may make it necessary to carry out more frequent inspections. Record of inspections The results of the inspections must be recorded in an inspection report. The records of the acceptance tests must be kept throughout the operating time of the oxygen-reduction system. The records of the regular inspections must be kept for at least 4 years. These may be stored on computer data carriers.

The documents must be presented to the competent supervisory authorities upon request. The aim of the examination is to determine whether these persons have any health concerns with regard to working in technically oxygen-reduced atmospheres.

These persons may only work in rooms with oxygen-reduced atmospheres if the health examination was undertaken pursuant to G. Fire Safety Log Book Company Date Started For Additional Information: Overview The recognises its obligation to ensure that all accidents and incidents are reported, recorded and investigated.

We are committed to identifying corrective. Restrictions on Location Child care centre shall not be located: Name of Responsible Person: Does the assessment cover the whole site YES or. Checklist for Educational Premises Name of Premises: Noise and Vibrations Occupational Safety and Health Ordinance 1 Ordinance on the protection of workers against the risks arising from exposure to noise and vibrations Noise and Vibrations Occupational.

All Department of Education and Children’s Services employees. Delivery, Notice, Signature After receiving the following information sheets, the team leader from every external company is required to read through them, explain them to their employees, and after. Accidents involving personal injuries, including staff, students and visitors etc.

E. Working in oxygen-reduced atmospheres BGI/GUV-I E. Information – PDF

Delivery, Notice, Signature After receiving the following information sheets, the team leader from every external company is required to read through them, explain them to their employees. Address Line 1 Address Line 2 Locality: December GMBl No. Safety Storage Cabinets Overview What. Fire Safety Last updated in October This information sheet aims to give safety reps a basic understanding of fire safety and fire risk assessments under the current law.

Risk Assessment Module 1 Risk assessment in the laboratory After studying this module you will be able to understand the big to conduct risk assessments, how this applies to all laboratory activities.

FSS 5, Attachment 1: Type of Initial Repeat II. Details of the machine Internal system designation 1. Designation Type Serial No.