Manufacturing processes using dangerous chemicals
Casting and welding involving high temperatures
Dorian Food Processing Health & Safely Meeting Agenda Wednesday 16 April, Conference Room, 2.00pm - 4.0C To: RM, MA, DB, SM, BP, U Chair: Rosana Martinez . Hazardous substances & Personal Protective Equipment Harmful gases/fumes & asphyxiation hazards Fire/Explosion hazards Machinery: guards and safety devices Access ways, guardrails and emergency exits Electrical installations Noise hazards |
7.5 Complete the gaps with the issues of agenda 1) ________________ protective shields around dangerous machine parts, eg they are over the tops of circular saw blade. 2) ________________ loud noise that can damage hearing, for example from loud machines. 3) _________________ vapors of smoke dangerous to health that can cause rashes. They may come from liquid chemicals. 4) ________________ doors to allow rapid escape/ evacuation, for example fire exits. 5) _________________ dangerous materials, for example acid, asbestos. 6) _________________ substances that that could burn or explode if exposed to naked flames or sparks, for example petroleum, butane/propane gas. 7) _________________ protective clothing and accessories, for example protective gloves, safety glasses. 8) _________________ situations involving contact with exposed electrical conductors such as electrical maintenance or work operations close to high-voltage cables. 9) _________________ rails at waist level to prevent people from falling, for example along the edges of high-level walkways and platforms. 10) ________________danger of suffocation, for example due to concentrations of carbon dioxide / lack of oxygen. |
7.6 Ω Rosana, the assistant manager at a Dorian Food Processing plant, is chairing the weekly Health and Safety meeting. Listen to four extracts from the meeting and match each extract (a-d) to an agenda item (1-7).
a. _________ b. _________ с. _________ d. _________
7.7 Ω Listen again and match the words from the meeting (1-8) to the definitions (a-h).
1 confined spaces | a burns the skin |
2 CO, detector | b contact (with a danger) |
3 exposure | с sources of ignition |
4 irritant | d small areas without ventilation |
5 toxic | e measures carbon dioxide |
6 corrosive | f poisonous |
7 flammable | g causes skin to react |
8 naked flames/sparks | h catches fire easily |
7.8 Which four types of PPE shown in the photos are mentioned at the meeting?
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7.9 Pair work. Discuss the hazards in the following situations and the precautions that should be taken.
Working inside a container with limited air circulation Cleaning metal using acid that can burn the skin and which gives off fumes Using a grinder to cut through a steel plate Applying paint that can cause painful rashes on the hands
7.10 Stephanie, Dorian's senior safety officer, is attending a meeting on standard procedure for some engineering work that will be carried out at several of Dorian's plants around the world. Before the meeting she made notes. Read her notes and answer the following questions.
| What is meant by hazard analysis? What is another way to say safe system of work? What type of work is going to be carried out, and where? What is meant by access to silos? What are the specific hazards relating to confined spaces in this situation? |
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7.11 Complete health and safety precautions and PPE for performing the following operations on an existing steel petrol storage tank at a processing plant.
scaffolding dust masks flame-cut overalls hazardous fumes shot-blasting drained safety documentation handrails flashes hardhats eye protection explosion petrol fumes ear protection screens welding mask dust ladders oxy-acetylene torch petrol detergent grinder petrol fumes |
1. An opening needs to be cut through the wall
One of the main dangers is from ____________inside the tank, as there is a risk of _____________ due to sparks and flames. The workers will have to be careful that there is no ______________ inside the tank. The petrol will have to be ______________ and the inside will need to be washed out with water and ______________. The opening can then be ______________ through the steel wall of the tank using an______________. PPE required for this job is eye protection (a ______________), gloves and heavy______________ to protect a worker from molten metal. Alternatively, the cutting can be done with an angle-grinder. To be safe, the worker using the ______________ will need to wear eye protection, ______________, gloves and overalls.
2. Welding a new steel outlet pipe onto the opening.
When welding a new pipe, the welder will need to wear______________ (a welding mask), gloves and overalls. If arc welding is used and there are other people working nearby or passing by, ______________ should be placed around the welder to protect other people’s eyes from ______________.
3. Removing the existing paint from the external surface of the tank by shot-blasting
When ______________, the main dangers are to the eyes, from noise and ______________. Screens should be placed around the area and workers should wear eye protection, ear protection, gloves and overalls.
4. Repainting of the tank.
Before painting it’s important to read the ______________ provided with the paint as PPE may be required – for example, gloves, eye protection and possibly masks to protect workers from ______________.
During all the operations if any work is carried out more than two meters above the ground, ______________ should be provided with ______________, as there is a risk of falling (workers shouldn’t stand on ______________ while working). Also, all workers should wear ______________.
Emphasising the importance of precautions
7.12 Dorian Food Processing is currently standardising safety procedures at its plants around the world. Read the following extract from the contents page of the company's new safety documentation and answer the following questions.
- What is meant by LV and HV electrical maintenance operations? What kinds of electrical maintenance might be carried out in a factory?
LV & HV ELECTRICAL MAINTENANCE OPERATIONS Part 1 Identifying and designating Restricted Areas (switchboards, transformer stations, areas with exposed conductors) Part 2 Authorising maintenance
Part 3 Isolating and energising circuits
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7.13 Match the following phrases with their explanations
1) restricted areas | a) A written form giving permission to work in restricted areas |
2) a permit to work | b) Only one person has access to switchgear at any given time |
3) the electrical supervisor | c) Places where a serious danger is present |
4) the lock-out procedure | d) Some one who issues permits to work a a key to the restricted areas |
7.14 Complete the following sentences by underlining the phrases that give the strongest emphasis.
Restricted areas are places where a serious danger is present. So it's essential that these should be kept locked at all times / all the time. Under no circumstances should anyone / Nobody should under any circumstances be able to access them... ... it's important that permits are issued each time / every single time someone enters... And it's crucial that there's just one / just a single key to each restricted area. Then, while they're working, it's vital / it's advisable that they keep the key on them...7.15 Which of the following phrases give more emphasis than it's important, and which give less?
1. it's crucial 2. it's essential 3. it's preferable 4. it's vital
7.16 Rewrite the following precautions using the phrases in the box to add emphasis
at all times every single it’s crucial it’s essential it’s vital under no circumstances |
1 The fire exit should always be kept clear. –
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