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ASTM E1270-88(1997)
Standard Test Method for Equal Arm Balances
6 стр.
Заменен
Печатное изданиеЭлектронный (pdf)
93.60 $ (включая НДС 20%)
Разработчик:
Зарубежные/ASTM
ICS:
17.060 Measurement. Including measuring instruments / Измерение объема, массы, плотности, вязкости. Включая измерительные приборы
Сборник (ASTM):
14.04 Laboratory Apparatus; Degradation of Materials; SI; Oxygen Fire Safety / Лабораторная аппаратура; Деградация материалов; Международная система единиц СИ; Кислород и пожарная безопасность
Тематика:
Laboratory Testing
Описание
Область применения

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.

Ключевые слова:
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; Lever-arm ratio; Loading tests; Sensitivity criterion/response; equal arm balances, test