Instruments such as:
- Weighing Scale for weights
- Ph Meter for Acidity or Basicity
- Graduated Cylinder for volume
- Bioassay for Bacterial susceptibility
- Decibel Meter for measuring sounds
- Barometer for measuring pressure
- Thermometer for measuring Temperature
- Voltammeter for measuring trace metals
- Response of respondents for studies involving survey
Example of a raw data:
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