This standard specifies a method of the determination of primary biodegradabilty of surfactants by aerobic micro-organisma. This standard is applicabl to determination of biodegradability of anionic surfactants characterised by sulphate and sulphonate group;polyoxyethylene nonionic surfactants characterised by single EO chain with EO number ranging from 3 to 40,or multi EO chains(double,triple,quadruple EO chains)with total EO number ranging from 6 to 60;alkyl polyglycoside surfactants;cationic and amphoteric surfactants and surfactants capable of producing rich foam during test.This standard is also applicable to determination of the biodegradability of above surfactants in detergents.
SAC/TC
National
Technical
Committee
on
of
of
Standardization
Administration
China.
And
the
272
Surfactant
Detergent
主管部门：
SAC/TC
National
Technical
Committee
on
of
Standardization
And
the
272
Surfactant
Detergent
发布部门：
of
Republic
General
Quality
Supervision,Inspection
Quarantine
General
Quality
Supervision,Inspection
People's
and
standardization
quarantine
The
administration
quality
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