Enterprises with limited space operations should strictly implement the principle of “first ventilation, first detection, and post-operationâ€. Without ventilation and testing, operators are strictly prohibited from entering limited space. When performing the test, the test personnel should be in a safe environment. The test records should be made during the test, including the test time, location, gas type and test concentration. The test indicators include oxygen concentration value, flammable and explosive substances (flammable gas, explosiveness). Dust concentration value, toxic gas concentration value, etc.; testing standards and testing work should comply with relevant standards and requirements. When the working environment changes, it should be regarded as entering a new limited space, which can be accessed after re-ventilation and detection.
2 take reliable partition (isolation) measuresReliable partitioning (isolation) measures must be taken to isolate limited space from other piping or other spaces that may compromise safe operations. Before carrying out limited space operations, the limited space shall be cleaned or replaced according to the characteristics of the materials in the limited space, and the relevant requirements shall be met; mandatory continuous ventilation measures shall be taken before and during the implementation of the limited space operation. Reduce the danger, keep the air flowing, and do not use pure oxygen for ventilation!
3 has enough lightingLimited space operations should have sufficient lighting, lighting fixtures should comply with relevant national requirements; there is limited space for flammable gases, and all electrical equipment and lighting should comply with explosion-proof requirements. Enterprises should also be equipped with personal protective equipment and ensure proper wearing and use according to the relevant types of hazardous hazardous factors and the degree of hazard in the limited space operations, and the operators must carry the lifeline.
4 equipment ready to be completeWear an isolated protective mask when working in a limited space with oxygen or toxic substances (gas); wear anti-static overalls, work shoes, and use explosion-proof tools (lighting) when working in a flammable and explosive space. When working in a limited space with corrosive media such as acid and alkali, wear protective clothing such as acid and alkali protective clothing, work shoes, gloves, etc.; when working in a limited space where noise is generated, wear earplugs or earmuffs to prevent noise. Protective gear.
5 set the eye-catching security warning signIt is also necessary to set a prominent safety warning sign near the entry point of the limited space, inform the operator of the dangerous and harmful factors and prevention measures in advance, and clarify the person in charge of the limited space on-site operation, the operator, the guardian and the tester. Responsibilities, do not work without a guardian. At the same time, the relevant personnel engaged in limited space operations, including the dangerous characteristics and safe operation requirements of limited space, the procedures for entering limited space, the correct use of testing instruments, personal protective equipment, etc., personal hazard knowledge in emergency situations Training in the content of emergency rescue measures such as poisoning asphyxiation and other injuries to improve the safety awareness and self-protection ability of employees. In the event of a limited space accident, the on-site personnel should promptly report to the police, and rescue personnel should also do their own protection, equip with necessary breathing apparatus and rescue equipment, and strictly prohibit blind rescue, resulting in an accident.
Zirconia Ceramic Standard Parts
The zirconia ceramic oxygen sensor has high mechanical properties and reliability. As a component for purifying exhaust gas, it is used to measure the O2 concentration in the exhaust gas of the vehicle, and then feed the measured value back to the engine feed and fuel supply system. In order to keep the fuel in a fully combusted state. Since all the phases of the ceramic material are completely cubic-type stabilized zirconia, tetragonal and monoclinic mixed partially stabilized zirconia, the mechanical properties are excellent during use, and the heat generated by friction can be reduced.
Zirconia Ceramic Standard Parts,Steel Zirconia Ceramic Parts,Anti-Abrasive Technical Ceramic,Alumina Ceramic Molded Parts
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