Self-support export enterprise specializing in producing Level Vial, Spirit Level 

29

2024

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07

How to Check a Spirit Level for Accuracy within its Tolerance


• Place the level on a flat surface.
• Make one mark at the end of the level.
• Make another mark along the side of the level, under the vial in the center.
• Take a reading of the bubble’s position.
• Rotate the level 180° end-to-end and align the level with your marks.
• Take another reading. If the level is accurate, the bubble will be in the same position for both readings.
• To test the vertical vial, follow the same procedure against a flat vertical surface.

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