Vacuum Chamber and Water Tank Testing Guidelines

• The vacuum chamber should be at a temperature of 20±3°C and a pressure of 1 05±5°C
• The specimen should have a volume of not less than 0.001 m3
• The vacuum chamber should be maintained at a pressure of 1 05±5°C for a period of at least 24 hours
• The water tank should be kept at a pressure of approximately the water vapour pressure at the given temperature for at least 2 hours
• The scales should be sensitive to 0.05% of the mass of the specimen both while in air and while being submerged in water
• The state of constant mass of the dry specimen is assumed to be reached when the difference between two weighings, 24 hours apart, is less than 0.1 % of the mean value of the two readings.

This quiz covers the guidelines for conducting tests in a vacuum chamber and water tank, including temperature, pressure, specimen volume, duration, and sensitivity of scales. Test your knowledge of the specific requirements for conducting accurate tests in these controlled environments.