Table 4 Summary of the main differences between the three most commonly used solution replacement tests to measure diffusive leaching from monolithic waste samples.

From: Forty years of durability assessment of nuclear waste glass by standard methods

Test

Solution replacement interval

Temperature

Solution

ANS 16.1

Intervals of 24 h for at least five days

18–28 °C

DI water

ASTM C1308

2, 7, 17 and 25 h and daily for the next 10 days

20 °C and other temperatures as necessary

DI water, synthetic or actual groundwater

EPA 1315

2 h, followed by 1, 2, 7, 14, 28, 42, 49 and 63 days

20 ± 2 °C, and other temperatures as necessary

DI water, synthetic or actual groundwater