When drying SFRM for density testing, what is the maximum allowable relative humidity?

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Multiple Choice

When drying SFRM for density testing, what is the maximum allowable relative humidity?

Controlling moisture during drying is crucial because the mass you measure should reflect the material itself, not residual moisture. The maximum allowable relative humidity is 60 percent, which keeps drying reliable and prevents moisture from skewing the density reading. If the humidity is higher, drying slows and moisture can linger on or within the material, leading to inconsistent or inflated density results. Values above 60 percent would violate the requirement, while a lower humidity like 50 percent is acceptable but does not change the fact that 60 percent is the upper limit.

Controlling moisture during drying is crucial because the mass you measure should reflect the material itself, not residual moisture. The maximum allowable relative humidity is 60 percent, which keeps drying reliable and prevents moisture from skewing the density reading. If the humidity is higher, drying slows and moisture can linger on or within the material, leading to inconsistent or inflated density results. Values above 60 percent would violate the requirement, while a lower humidity like 50 percent is acceptable but does not change the fact that 60 percent is the upper limit.

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