JIS A 1291-2:2025

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Test method for adsorption performance of attenuation layer-Part 2: Column test

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JIS A 1291-2:2025

Test method for adsorption performance of attenuation layer-Part 2: Column test

PUBLISH DATE 2026
JIS A 1291-2:2025

This Standard specifies the **column adsorption test method** for evaluating the adsorption properties of attenuation layer materials used for attenuation layer method, which are applied as a countermeasure against the leaching of naturally occurring heavy metals and other substances from excavated soil and rock.

This Standard is _not applicable_ to soil not to be mixed with sorbents.

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