Author: OECD
Publisher: OECD Publishing
ISBN: 9264069720
Category :
Languages : en
Pages : 7
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Book Description
This Test Guideline describes the methods allowing the determination of the dissociation constants in water. The dissociation is the reversible splitting into two or more chemical species which may be ionic. The determination of the dissociation ...
Author: OECD
Publisher: OECD Publishing
ISBN: 9264015841
Category :
Languages : en
Pages : 17
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Book Description
This Test Guideline describes the slow-stirring method, which permits the determination of the 1-octanol/water partition coefficient (POW) values up to a log POW of 8.2. The partition coefficient between water and 1-octanol (POW) is defined as the ...
Author: OECD
Publisher: OECD Publishing
ISBN: 9264069704
Category :
Languages : en
Pages : 16
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Book Description
This Test Guideline describes a laboratory test method to assess abiotic hydrolytic transformations of chemicals in aquatic systems at pH values normally found in the environment (pH 4 – 9). This Guideline is designed as a tiered approach; each tier ...
Author: OECD
Publisher: OECD Publishing
ISBN: 9264069585
Category :
Languages : en
Pages : 7
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Book Description
This Test Guideline describes methods to determine the water solubility of test substances. The water solubility of a substance is the saturation mass concentration of the substance in water at a given temperature. This guideline addresses the ...
Author: OECD
Publisher: OECD Publishing
ISBN: 9264069623
Category :
Languages : en
Pages : 4
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Book Description
This Test Guideline describes a method to determine experimentally Pow values in the range log Pow between -2 and 4 (occasionally up to 5). This method can not be used with surface-active materials. The partition coefficient is defined as the ratio ...
Author: OECD
Publisher: OECD Publishing
ISBN: 926406978X
Category :
Languages : en
Pages : 7
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Book Description
This Test Guideline describes methods to determine the surface tension (in N/m) of aqueous solutions. The methods are based on the measurement of the force which it is necessary to exert vertically on a stirrup or ring, in contact with the surface ...
Author: OECD
Publisher: OECD Publishing
ISBN: 9264069828
Category :
Languages : en
Pages : 12
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Book Description
This Test Guideline describes the HPLC method, which permits to determine the partition coefficient (n-octanol/water) (Pow). Reverse phase HPLC is performed on analytical columns packed with a solid phase containing long hydrocarbon chains ...
Author: OECD
Publisher: OECD Publishing
ISBN: 9264069887
Category :
Languages : en
Pages : 5
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Book Description
This Test Guideline describes a method to analyse the solution/extraction behaviour of polymers in water, which uses the flask method with modifications. Three samples of 10 g of particles of the test substance are weighed into each of three vessels ...
Author: OECD
Publisher: OECD Publishing
ISBN: 9264123296
Category :
Languages : en
Pages : 6
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Book Description
This Test Guideline lists methods for determining the density of liquids and solids, giving only a succinct description of them. The density of a substance is the quotient of its mass and its volume and is expressed in SI units as kg/m3 at a ...
Author: OECD
Publisher: OECD Publishing
ISBN: 9264069542
Category :
Languages : en
Pages : 8
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Book Description
This Test Guideline describes methods to determine the boiling point of test substances. The boiling point of a liquid is defined as the temperature (in K) at which the vapour pressure equals the standard atmospheric pressure 101.325 kPa. The ...
