A 1000ml borosilicate glass measuring cylinder is a laboratory instrument used for measuring larger volumes of liquids with high accuracy and precision. Here are some of its key features:

1. Capacity: The capacity of the measuring cylinder is 1000 ml, which makes it suitable for measuring larger volumes of liquids.

2. Material: The cylinder is made of high-quality borosilicate glass, which is a type of glass that is heat-resistant, durable and resistant to chemical corrosion.

3. Graduation Range: The graduation range is 0-1000 ml, which allows for the measurement of a wide range of volumes.

4. Graduation Intervals: The graduation intervals are typically 10 ml, which allows for precise measurement of liquid volumes.

5. Accuracy: The accuracy of the measuring cylinder is usually +/- 10 ml, which makes it suitable for measuring precise volumes of liquids.

6. Temperature Range: The cylinder can typically withstand temperatures ranging from -50°C to 550°C, which makes it suitable for use in a wide range of laboratory applications.

7. Height: The height of the cylinder is usually around 550 mm, which makes it suitable for measuring larger volumes of liquids.

8. Diameter: The diameter of the cylinder is typically around 80 mm, which allows for easy handling and measurement of liquids.

9. Weight: The weight of the cylinder is typically around 800-900 grams, which makes it easy to handle and maneuver.

10. Base: The cylinder has a flat and stable base, which prevents it from tipping over easily.

11. Markings: The graduation markings are etched into the glass, ensuring they are clear and easy to read.

12. Cleaning: The cylinder can be easily cleaned and sterilized, and is suitable for reuse.

13. Certification: The cylinder may come with a certificate of calibration or conformance, ensuring that it meets international standards for accuracy and precision.

In conclusion, a 1000ml borosilicate glass measuring cylinder is a valuable laboratory instrument that is suitable for measuring larger volumes of liquids with high accuracy and precision. Its durability, compatibility, and ease of use make it a valuable tool for scientific research and analysis.