Nitrogen (pressure) testing involves applying stored energy to an assembly of parts, in order to verify its strength, its integrity and/or its functionality.
The action you need to take to comply with these regulations will depend primarily on;
– the size of assembly under test
– its test pressure
– the test madium(Nitrogen)
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| Hazard Category | Hazards | Controls |
| Inhalation of Pure Nitrogen | 1. This is a very serious hazard presented by nitrojen vapor/gas. Inhalationof pure nitrogen (containing no oxygen) can and will result in the person to fall unconcious going into a coma with an ultimate result of death. If first aid is not administered immediately | 1. Atmosphere shall be monitored on an ongoing basis and suitable ventilation maintained at all times. 2. Personnel required to poerate in enclosed/confiend areas shall wear respiratory protectice equipment i.e. breathing apparatus. 3. Pernonnel shall be informed of the ‘tell tale signs’ of over exposure and advised of the relevant emergency procedures involved |
| High Pressure Release | 1. A sudden, accidental release of pressure is always a possibility | 1. All equipment within the systems shall be fitted with the relevant high pressure relief devices 2. Supervisors shall ensure that a ‘Safe System of Work’ is in plae for all tasks 3. Barriers shall be erected around high pressure testing areas with hazard and warning signs erected informing other personnel of the potential danger 4. Only authorized personnel shall be permitted in the danger area |
| Cold Burns to The skins | 1. Can occur by ontact with liquid and/or by contact with pipes etc. containing liquid | 1. Personal Protetive Equipment (PPE) shall be worn at all times when handling or working near liquid nitogen 2. Personnel shall be made aware of emergeny first aid treatment for skin contact and all burns shall be treated immediately |
| Venting of Gas | 1. One volume of liquid nitrogen at atmospheric temperature vaporizes to 695.5 volumes of nitrogen gas, Liquid nitrogen cannot be definitely maintained as a liquid even in well-insulated containers. Any liquid or even cold vapor trapped between valves has the potential to ause an excessive build up to the point of a violent rupture of ontainer or piping | 1. Supervisors shall ensure that all systems (containing liquid nitrogen) are fitted with the relevant pressure relief devices. 2. Only qualified and authorized personnel shall be involved in venting iperations. 3. All operating and safety procedures shall be followed at all times. |
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제주도 서쪽 비양도라는 섬이 있습니다. . 비양도는 제주시 한림읍 비양리 위치해 있으며, 하늘에서 날오온 섬이라는 의미를 지니고 있습니다. 비양도는 한림항에서 약 1.1km 떨어져 있으며, 섬의 모양은 원형에 가깝고 약 2000여명의 주민이 거주하고 있습니다. 비양도의 중앙에는 해발 114m 높이의 비양봉 본석구가 있고, 서쪽 해안에는 제주도에서 가장 큰 초대형 화산탄들이 분포하고 있습니다. . 섬의 북쪽 해안에는 호니토(homito)로 알려진 굴뚝모양의 바위들이 약 20여기 분포하고 있다. 호니토는 용암이 흐르다가 습지 등의 물을 만나 수증기와 용암이 뒤섞여 분수처럼 솟구쳐 나와 쌓여 만들어졌으며, 천연기념물 제439호로 지정되어 있습니다. . 섬의 동쪽에는 펄렁못 엄습지와 마을 신당이 위치해 있습니다. 최근까지 비양도는 약 1,000년 전에 분출한 섬으로 알려져 왔으나 용암의 나이를 분석한 결과 27,000년 전에 형성된 것으로 조사되었습니다. . …