Rechercher

Lays down detailed specifications for the instrumentation and procedure to be used for secondary shock calibration of accelerometers. Applies to rectilinear accelerometers of the strain gauge, piezoresistive and piezoelectric types and to secondary standard accelerometers. Is applicable for a time range from 0,1 ms to 10 ms and a dynamic range from 100 m/s^2 to 10^5 m/s^2. The limits of…

Lays down detailed specifications for the instrumentation and procedure to be used for primary calibration of accelerometers using Earth's gravitation. Applies to rectilinear accelerometers with zero-frequency response, mainly of the strain gauge or piezoresistive type, to servopick-ups, and to primary standard and working pick-ups. Is applicable for ± local Earth's gravitation at 0 Hz…

Lays down detailed specifications for the instrumentation and procedure to be used for primary calibration of accelerometers using centrifuge calibration. Applies to rectilinear accelerometers with zero-frequency response, mainly of the strain gauge or piezoresistive type, and to primary standard and working pick-ups. Is applicable for a calibration range from 10 m/s^2 to 1000 m/s^2 (higher…

Lays down detailed specifications for the instrumentation and procedure to be used for primary calibration of accelerometers using centrifuge calibration. Applies to all types of rectilinear accelerometers, primary standards and working pick-ups. Is applicable for a frequency range from 0,7 Hz to 10 Hz and a dynamic range from 10 m/s^2 to 100 m/s^2. The limits of uncertainty applicable are ± 2 %…

Lays down detailed specifications for the instrumentation and procedure to be used for primary high impact shock calibration of accelerometers. Applies to rectilinear accelerometers, mainly of the piezoelectric and piezoresistive type, to primary standards and working accelerometers. Is applicable for a time range from 10 µs to 100 µs and a dynamic range from 10^3 m/s^2 to 10^5 m/s^2. The limits…

Fieldbus is a digital serial, multidrop, data bus for communication with low-level industrial control and instrumentation devices such as transducers, actuators and local controllers. The Physical Layer provides for transparent transmission of Data Link Layer entities across physical connections. Specifies the requirements for Fieldbus component parts. Also specifies the media and network…

The procedure includes weighing out a test portion of approximately 300 g of the sample, placing the test portion in the top sieve of a set of test sieves (including all the sieves listed against the grade under test in the appropriate part of ISO 11126) with the largest-aperture sieve on the top and progress to the smallest aperture at the bottom with a pan, to catch any abrasive that falls…

The procedure includes drying a sufficient quantity of the sample by heating, allowing to cool to room temperature, adding distilled or deionized water to the cleaned, dried and weighed pyknometer containing 10 g of the dried sample until it is completely filled, displacing air adhering to the test portion, drying the outside of the pyknometer, reweighing the pyknometer and its contents, emptying…

The procedure includes examining a small quantity of the sample under the microscope and, if grains of different colours or diameter are present, selecting a few grains of each, placing the selected grains between two glass microscope slides and, whilst applying pressure, slowly moving one slide over the other with a reciprocating motion for 10 s, examining the glass surfaces for scratches. The…

The procedure includes weighing a test portion of approximately 100 g into a container, placing the container with the test portion in an oven previously adjusted to 110 °C, leaving for at least 1 h, transferring the container to a desiccator, allowing to cool to room temperature, reweighing the container with the dried test portion, determining the mass of the dried test portion. Annex A gives…