OECD Guidelines for the Testing of Chemicals, Section 1 Test No. 126: Determination of the Hydrophobicity Index of Nanomaterials Through an Affinity Measurement PDF Download
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Author: OECD
Publisher: OECD Publishing
ISBN: 9264417249
Category :
Languages : en
Pages : 19
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Book Description
This Test Guideline (TG) describes a method to determine the hydrophobicity index (Hy) of nanomaterials (NMs), through an affinity measurement. Hydrophobicity is defined as "the association of non-polar groups or molecules in an aqueous environment which arises from the tendency of water to exclude non-polar molecules".
Author: OECD
Publisher: OECD Publishing
ISBN: 9264417249
Category :
Languages : en
Pages : 19
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Book Description
This Test Guideline (TG) describes a method to determine the hydrophobicity index (Hy) of nanomaterials (NMs), through an affinity measurement. Hydrophobicity is defined as "the association of non-polar groups or molecules in an aqueous environment which arises from the tendency of water to exclude non-polar molecules".
Author: OECD
Publisher: OECD Publishing
ISBN: 9264443681
Category :
Languages : en
Pages : 71
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Book Description
This Test Guideline, covering nanomaterials spanning from 1 nm to 1000 nm, is intended for particle size and particle size distribution measurements of nanomaterials.
Author: OECD
Publisher: OECD Publishing
ISBN: 926433307X
Category :
Languages : en
Pages : 19
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Book Description
This Test Guideline (TG) describes a harmonised procedure to determine the Volume Specific Surface Area (VSSA) of powdered solid manufactured nanomaterials (MNs).
Author: OECD
Publisher: OECD Publishing
ISBN: 9264203680
Category :
Languages : en
Pages : 6
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Book Description
This Test Guideline describes the procedure for the electronic determination of pH of an undiluted aqueous solution or dispersion, the pH of a dilution of a solution or dispersion in water, or the pH of a chemical diluted to end-use concentration ...
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: 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: Dennis J. Paustenbach
Publisher: John Wiley & Sons
ISBN: 111974296X
Category : Technology & Engineering
Languages : en
Pages : 1319
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Book Description
Understand the fundamentals of human risk assessment with this introduction and reference Human risk assessments are a precondition for virtually all industrial action or environmental regulation, all the more essential in a world where chemical and environmental hazards are becoming more abundant. These documents catalog potential environmental, toxicological, ecological, or other harms resulting from a particular hazard, from chemical spills to construction projects to dangerous workplaces. They turn on a number of variables, of which the most significant is the degree of human exposure to the hazardous agent or process. Human and Ecological Risk Assessment combines the virtues of a textbook and reference work to introduce and analyze these vital documents. Beginning with the foundational theory of human health risk assessment, it then supplies case studies and detailed analysis illustrating the practice of producing risk assessment documents. Fully updated and authored by leading authorities in the field, the result is an indispensable work. Readers of the second edition of Human and Ecological Risk Assessment will also find: Over 40 entirely new case studies reflecting the latest in risk assessment practice Detailed discussion of hazards including air emissions, contaminated food and soil, hazardous waste sites, and many more Case studies from multiple countries to reflect diverse international standards Human and Ecological Risk Assessment is ideal for professionals and advanced graduate students in toxicology, industrial hygiene, occupational medicine, environmental science, and all related subjects.
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: 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 ...
