Description: operating time of the product from the commencement of its usage to the first failure ; Name: operating time until failure
Description: Operating time accumulated from the first use, or from restoration, until failure ; Name: Operating time to failure
Description: maximum value of the mass of the liquid at design temperature divided by its volume, when stating the density, the unit of density used, together with the temperature, shall be explicitly given, for example kilogram per cubicmeter or gramme per mililiter at t°C (see the note), the standard reference temperature for international trade in petroleum and its products is 15°C (see ISO 5024), but other reference temperatures may be required for legal metrology or other special purposes.; Name: maximum density at design temperature