Download or read book OECD Guidelines for the Testing of Chemicals Section 1 Test No 124 Determination of the Volume Specific Surface Area of Manufactured Nanomaterials written by OECD and published by OECD Publishing. This book was released on 2022-06-30 with total page 19 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Test Guideline (TG) describes a harmonised procedure to determine the Volume Specific Surface Area (VSSA) of powdered solid manufactured nanomaterials (MNs).

Download or read book OECD Guidelines for the Testing of Chemicals Section 1 Test No 125 Nanomaterial Particle Size and Size Distribution of Nanomaterials written by OECD and published by OECD Publishing. This book was released on 2023-07-04 with total page 71 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Test Guideline, covering nanomaterials spanning from 1 nm to 1000 nm, is intended for particle size and particle size distribution measurements of nanomaterials.

Download or read book OECD Guidelines for the Testing of Chemicals Section 1 Test No 126 Determination of the Hydrophobicity Index of Nanomaterials Through an Affinity Measurement written by OECD and published by OECD Publishing. This book was released on 2023-07-04 with total page 19 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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".

Download or read book OECD Guidelines for the Testing of Chemicals Section 1 Test No 115 Surface Tension of Aqueous Solutions written by OECD and published by OECD Publishing. This book was released on 1995-07-27 with total page 7 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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 ...

Download or read book Human and Ecological Risk Assessment written by Dennis J. Paustenbach and published by John Wiley & Sons. This book was released on 2024-04-15 with total page 1319 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.

Download or read book OECD Guidelines for the Testing of Chemicals Section 1 Test No 122 Determination of pH Acidity and Alkalinity written by OECD and published by OECD Publishing. This book was released on 2013-07-26 with total page 6 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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 ...

Download or read book OECD Guidelines for the Testing of Chemicals Section 1 Test No 109 Density of Liquids and Solids written by OECD and published by OECD Publishing. This book was released on 2012-10-02 with total page 6 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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 ...

Download or read book OECD Guidelines for the Testing of Chemicals Section 1 Test No 123 Partition Coefficient 1 Octanol Water Slow Stirring Method written by OECD and published by OECD Publishing. This book was released on 2006-07-11 with total page 17 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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 ...

Download or read book OECD Guidelines for the Testing of Chemicals Section 1 Test No 105 Water Solubility written by OECD and published by OECD Publishing. This book was released on 1995-07-27 with total page 7 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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 ...

Download or read book OECD Guidelines for the Testing of Chemicals Section 1 Test No 103 Boiling Point written by OECD and published by OECD Publishing. This book was released on 1995-07-27 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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 ...

Download or read book OECD Guidelines for the Testing of Chemicals Section 1 Test No 107 Partition Coefficient n octanol water Shake Flask Method written by OECD and published by OECD Publishing. This book was released on 1995-07-27 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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 ...

Download or read book OECD Guidelines for the Testing of Chemicals Section 1 Test No 119 Determination of the Low Molecular Weight Content of a Polymer Using Gel Permeation Chromatography written by OECD and published by OECD Publishing. This book was released on 1996-06-14 with total page 9 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Test guideline describes the Gel Permeation Chromatography (GPC). This method permits to determine the molecular weight distribution and the average molecular weights (Mn, Mw). GPC is a special type of liquid chromatography in which the sample ...

Download or read book OECD Guidelines for the Testing of Chemicals Section 1 Test No 102 Melting Point Melting Range written by OECD and published by OECD Publishing. This book was released on 1995-07-27 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Test Guidelines describes several methods and devices to determine the temperature or temperature range of the phase transition from the solid to the liquid state or from the liquid to the solid state. The melting point is defined as the ...

Download or read book OECD Guidelines for the Testing of Chemicals Section 1 Test No 120 Solution Extraction Behaviour of Polymers in Water written by OECD and published by OECD Publishing. This book was released on 2000-01-21 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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 ...

Download or read book OECD Guidelines for the Testing of Chemicals Section 1 Test No 111 Hydrolysis as a Function of pH written by OECD and published by OECD Publishing. This book was released on 2004-11-23 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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 ...

Download or read book OECD Guidelines for the Testing of Chemicals Section 1 Test No 113 Screening Test for Thermal Stability and Stability in Air written by OECD and published by OECD Publishing. This book was released on 1981-05-12 with total page 9 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Test Guideline describes methods for determining storage stability of a substance with respect to heat and air. Two methods are applicable to homogeneous solid and liquid substances and to mixtures of these: the accelerated storage test and the ...

Download or read book OECD Guidelines for the Testing of Chemicals Section 1 Test No 112 Dissociation Constants in Water written by OECD and published by OECD Publishing. This book was released on 1981-05-12 with total page 7 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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 ...