This report analyses the effects of zero rating, i.e. when a predetermined type of traffic received by consumers is not counted against the download allowance of the Internet access service. The report looks at the economics of zero rating and issues such as the effects of zero rating on...

This Test Guideline lists methods for determining the density of liquids and solids, giving only a very succinct description of them. The density of a substance is the quotient of its mass and its volume and is expressed in kg/m3. Several methods are for liquid substance only: hydrometer,...

This Test Guideline describes methods to measure the viscosity of liquids. The methods listed are appropriate in principle for the investigation of Newtonian liquids. The measurement of non-Newtonian liquids is only possible with the rotational viscometer. Viscosity measurements are carried out...

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 specified temperature. Several methods are for liquid...

This Test Guideline describes methods to measure the viscosity of liquids. Most of the methods listed are appropriate for the investigation of Newtonian liquids. The measurement of non-Newtonian liquids is possible with the rotational viscometer. Viscosity measurements are carried out according...

Interest can be defined as the price paid by the borrower for the use of funds saved by the lender and the compensation to the lender for deferring expenditures. This compensation comprises two elements, namely a payment equal to the loss of purchasing power of the principal during the term of...