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Standard Test Method for Equal Arm Balances
Automaticky preložený názov:
Štandardná skúšobná metóda pre rovnocennú zostatkov
NORMA vydaná dňa 10.11.1997
Označenie normy: ASTM E1270-88(1997)
Poznámka: NEPLATNÁ
Dátum vydania normy: 10.11.1997
Kód tovaru: NS-41092
Počet strán: 6
Približná hmotnosť: 18 g (0.04 libier)
Krajina: Americká technická norma
Kategória: Technické normy ASTM
Keywords:
Accessory reading devices, Amplitude, Balances, Beam deflection, Calibration, Calibration-general laboratory analysis instrumentation, Chainweight, Electrical transducers, Electromagnetic force cells, Laboratory apparatus, Linear variable differential transformers (LVDT), Load (weight) cell, Optical (weight) scales, Oscillation, Precision-instrumentation, Sampling, Standard weight apparatus, Tare weights, Visual examination, Weight, equal arm balances, method for testing,, Damping ratio
1. Scope | ||
1.1 This test method can be used for testing equal-arm balances of any capacity and sensitivity. The testing procedure should enable the user to characterize his instrument sufficiently to determine whether or not it is suitable for the purpose for which it is to be used. 1.2 The characteristics to be examined include: 1.2.1 Sensitivity at all loads, 1.2.2 Lever arm ratio, 1.2.3 Damping ratio (for instruments without accessory dampers), 1.2.4 Period of oscillation, 1.2.5 Precision, and 1.2.6 Linearity and calibration of accessory devices that provide on-scale indication of weight. 1.3 This standard does not purport to address all of the safety concerns associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. |
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2. Referenced Documents | ||
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