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NEN - NPR-CEN/TS 16637-3

Construction products - Assessment of release of dangerous substances - Part 3: Horizontal up-flow percolation test

active, Most Current
Organization: NEN
Publication Date: 1 June 2016
Status: active
Page Count: 58
ICS Code (Ambient atmospheres): 13.040.20
ICS Code (Environmental testing): 19.040
ICS Code (Construction materials in general): 91.100.01
scope:

This Technical Specification specifies an Up-flow Percolation Test (PT) which is applicable to determine the leaching behaviour of inorganic and non-volatile organic substances from granular construction products. The test is not suitable for substances that are volatile under ambient conditions. The construction products are subjected to percolation with water as a function of liquid to solid ratio under specified percolation conditions. The method is a once-through column leaching test. This up-flow percolation test is performed under specified test conditions for construction products and does not necessarily produce results that mimic specific intended use conditions. This test method produces eluates, which can subsequently be characterized by physical, chemical and ecotoxicological methods according to existing standard methods. The results of eluate analysis are presented as a function of the liquid/solid ratio. The test results enable the distinction between different leaching behaviour. Construction products that exhibit a saturated hydraulic conductivity of about 10-8 m/s or higher can usually be subjected to this test. This procedure is also applicable to materials showing solidification in the column, if the final hydraulic conductivity is within the specified range. Inert granular material should not be added to improve permeability in order to enable their testing.

Document History

March 1, 2021
Construction products - Assessment of release of dangerous substances - Part 3: Horizontal up-flow percolation test
(1) This document specifies an up-flow percolation test (PT) which is applicable to determine the leaching behaviour of inorganic and non-volatile organic substances from granular construction...
NPR-CEN/TS 16637-3
June 1, 2016
Construction products - Assessment of release of dangerous substances - Part 3: Horizontal up-flow percolation test
This Technical Specification specifies an Up-flow Percolation Test (PT) which is applicable to determine the leaching behaviour of inorganic and non-volatile organic substances from granular...

References

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