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NEN 6689

Sludge - Determination of the suction time in vacuum filtration

inactive, Most Current
Organization: NEN
Publication Date: 1 March 1983
Status: inactive
Page Count: 4
ICS Code (Liquid wastes. Sludge): 13.030.20
scope:

This standard specifies a method to determine the suction time of sludge in vacuum filtration. See also NEN 6685. The standard applies to any kind of sludge, except if implementation of the test is not possible as a result of practical drawbacks, such as foam formation or an extremely high degree of dry material in the undissolved components. The determination of the suction time is used as a quick and simple method to characterize the dewaterability speed of sludge.

Document History

NEN 6689
March 1, 1983
Sludge - Determination of the suction time in vacuum filtration
This standard specifies a method to determine the suction time of sludge in vacuum filtration. See also NEN 6685. The standard applies to any kind of sludge, except if implementation of the test is...
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