OECD 309

Aerobic mineralisation in surface - Simulation Biodegradation Test

Study description if available:

The purpose of this test is to measure the time course of biodegradation of a test substance at low concentration in aerobic natural water and to quantify the observations in the form of kinetic rate expressions. The test is performed in batch by ‚"pelagic test", or ‚"suspended sediment test‚" to simulate a water body with suspended solids or re-suspended sediment.The test flasks are incubated in darkness at an environmental temperature under aerobic conditions and agitation during 60 days normally. At least two different concentrations of test substance (non-volatile or slightly volatile organic) should be used. The maximum test concentration should be less than 100¬µg/L (biodegradation following first order kinetics) and the lowest test concentration preferably in the range of ‚Äπ1-10¬µg/L. Two subsamples should be withdrawn from each test flask at each sampling time. Degradation is followed at appropriate time intervals, by measuring either the residual 14C or the residual concentration of test substance. The total mineralisation and the primary biodegradation are determined by a different 14C labeling part of the molecule. Periodic measurements of pH and oxygen concentration in the test system must be conducted.

Tips: search our services here by using keywords, species, guideline number or endpoint.
Thank you! Your submission has been received!
Oops! Something went wrong while submitting the form.
You can also filter by sector using the buttons below.

Arenicola marina sediment study

Sector:
Ecotoxicology
Read more & request a quote

Corophium volutator acute toxicity

Sector:
Ecotoxicology
Read more & request a quote

Corophium volutator chronic study

Sector:
Ecotoxicology
Read more & request a quote
ISO14669

Crustacean Acute: Toxicity Study - Acartia Tonsa or Tisbe battaglia. Determination of acute lethal toxicity to marine copepods.

Sector:
Ecotoxicology
Read more & request a quote

Method Development

Sector:
Analytical Chemistry
Read more & request a quote

SANTE 2020/12830 Rev.1.

Sector:
Analytical Chemistry
Read more & request a quote
OPPTS/OCSPP850.1035

Mysid Acute (Static and Flow Through)

Sector:
Ecotoxicology
Read more & request a quote
OPPTS/OCSPP850.1055
ISO17244

Oyster Embryo Larval Development Test

Sector:
Mixed
Read more & request a quote
OPPTS/OCSPP850.135

Mysid Chronic Toxicity Test

Sector:
Mixed
Read more & request a quote
OPPTS/OCSPP850.14

Fish: Chronic: Saltwater - Toxicity Study

Sector:
Ecotoxicology
Read more & request a quote
OPPTS/OCSPP850.45
ISO10253

Algal Acute Marine - Analytical Chemistry

Sector:
Analytical Chemistry
Read more & request a quote
OPPTS/OCSPP850.45
ISO10253

Algal Acute Marine - Growth Inhibition Study

Sector:
Ecotoxicology
Read more & request a quote
OECD 102

Melting Point/Melting Range

Sector:
Analytical Chemistry
Read more & request a quote
OECD 103

Boiling Point

Sector:
Analytical Chemistry
Read more & request a quote
OECD 104

Vapour/Pressure (isoteniscope)

Sector:
Analytical Chemistry
Read more & request a quote
OECD 105
EC A.6

Water Solubility

Sector:
Analytical Chemistry
Read more & request a quote
OECD 106

Adsorption/Desorption

Sector:
Analytical Chemistry
Read more & request a quote
OECD 107
OPPTS/OCSPP830.755
EC A.8

Partition Coefficient

Sector:
Analytical Chemistry
Read more & request a quote
OECD 109
EC A.3

Relative Density

Sector:
Analytical Chemistry
Read more & request a quote
OECD 111
OPPTS/OCSPP835.212
EC C.7

Hydrolysis as a function of pH

Sector:
Analytical Chemistry
Read more & request a quote