How accurate should a pressure gauge be readable?

A pressure gauge should be readable to an accuracy of .1% to ensure reliable and precise measurements in construction material testing, particularly with concrete. This level of accuracy is critical because even small discrepancies can significantly affect the outcomes of pressure testing, which is key to determining material integrity and strength.

In concrete testing, accurate pressure measurements are vital for applications such as determining the compressive strength and verifying the quality of concrete mixes. A gauge that is only readable to .2% or .5% might not provide the necessary precision for high-stakes measurements, such as those influencing safety in construction projects. Therefore, using a gauge that is accurate to .1% is both a best practice and aligns with industry standards for quality control in concrete testing.