Table 2.

Results from poke-flow experiments

Chamber sample	RH, %	, s*	Lower limit of viscosity, Pa·s†	Upper limit of viscosity, Pa·s‡
HEC	70	50.9	378
PNNL	68	8.98	378
	60	116.5	378
	55	46.0	378
	50	47.0	378
	45	305	378
	40	4,090	378

^*The values of can vary between experiments but the slowest observed flows are reported here to calculate an upper limit to the viscosity.

^†A lower limit (378 Pa·s) was established for 40–70% RH on the basis of the lower 95% prediction limit from the bead-mobility value at 70% RH.

^‡The upper limits to the viscosities were calculated using , and the calibration curve shown in Fig. S5.