Task 3 guidance booklet
Chemical store management
Chemicals must be stored in original containers with original labels. The labels should at least state the name of the chemical, and supplier with contact details. Labels must not be removed from the containers or defaced.
Secondary containers must be labelled if the chemical will not be used within one work shift or if the container will not be constantly attended. This will eliminate confusion where there are more than one unlabelled container is in use, and ensure that container content is known in the event of an emergency where outside personnel may be involved. Secondary container labelling must include the name of the substance and hazard warnings. This information should be stated …show more content…
It may also include adjustment of the instrument to bring it into alignment with the standard it is being compared with. Even the most precise measurement instrument is of no use if you cannot be sure that it is reading accurately, or, that you know what the error of measurement is. Most pieces of equipment are calibrated electronically by comparing the instrument against referenced standards which are known and been in a collaborative chain themselves.
How often you collaborate your equipment all depends on how important the accuracy is on the measurements you are making and the degree of wear and tear the instrument is getting. These calibrations are generally made annually. It is hard to judge the performance of an instrument without a set of calibration results.
Use of a centrifuge
A centrifuge is a piece of equipment that puts an object in rotation around a fixed axis. The centrifuge works using the sedimentation principle, where the centripetal acceleration causes denser substances and particles to move outward in the radial direction. At the same time, objects that are less dense are displaced and move to the centre. Lab staff will need to be trained how to use this and will also need to know what to do in the event of a …show more content…
Handling or transferring radioactive materials must be done in trays lined with absorbent paper and covered with aluminium foil. These liners must be disposed of after each series of experiments and fitting new ones. All glassware must be sterilised and put away within 24 hours of completing the practical. Active samples or contaminated materials must be confined to a certain room and if possible to a refines space within that room.
Handling glassware all glassware should always be inspected for cracks and contamination before use. Damaged items must be disposed of in the glass waste, and contaminated glassware should be sterilised. Glassware should be vented when heating to avoid a build-up of pressure and the possibility of an explosion. This means keeping the keep stoppers loose whilst carrying out an activity involving heating. All glassware containers must be clearly labelled to state what their contents are, including test tubes and conical flasks. In the case of an explosion or break of the glassware being used, safety glasses must always be worn.
Handling solvents and