1. Material characteristics: Made of borosilicate glass, it has a relatively high coefficient of thermal expansion and is suitable for use within the normal temperature range.
2. Structural design: Equipped with a pouring spout and a base, it facilitates the measurement and pouring of liquids.
3. Performance features: It has excellent chemical stability and light transmittance, making it suitable for measuring and preparing various chemical reagents and solutions.
4. Accuracy: The precise scale ensures measurement accuracy and helps improve the reliability of experimental results.

Working environment conditions:
1. Temperature: Room temperature 18-26℃, with temperature changes not exceeding 1℃/h.
2. Humidity: Relative humidity 45-65%.
3. Cleanliness: Keep the laboratory clean and avoid dust contamination.
4. Lighting: Appropriate lighting with an illuminance of approximately 300 lux.
5. Chemical environment: Avoid long-term contact with high-concentration strong acids, strong alkalis and other corrosive substances.
6. Mechanical environment: Handle with care, avoid collision and vibration. 

Notes:
1. Cleaning: Thoroughly clean before use to ensure no residue remains, which could affect measurement accuracy.
2. Drying: After cleaning, make sure it is completely dry to avoid water marks affecting the reading of liquid volume.
3. Reading: When reading the scale, keep your line of sight level with the liquid surface to avoid parallax error.
4. Temperature Control: Avoid using at extreme temperatures to prevent thermal expansion from causing inaccurate measurements.
5. Handle with Care: Handle gently to avoid dropping or bumping, which could cause the glass to break.
6. Chemical Compatibility: Not suitable for long-term storage of strong acids, strong bases, or other corrosive substances.