非常抱歉,我们暂时无法提供预览,您可以试试: 免费下载 ASTM E1270-1988(2014) 前三页,或者稍后再访问。
点击下载后,生成下载文件时间比较长,请耐心等待......
5.1x00a0;This test method should enable the user of the balance to interpret data determined thereon in terms of accuracy and precision. It should be helpful in using a particular instrument to best advantage. Weaknesses as well as strengths should become apparent. It is not the intention of this test method to compare similar instruments of different manufacture but rather to assist in choosing an instrument which will meet the needs of the user.
1.1x00a0;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.
1.2x00a0;The characteristics to be examined include:
1.2.1x00a0;Sensitivity at all loads,
1.2.2x00a0;Lever arm ratio,
1.2.3x00a0;Damping ratio (for instruments without accessory dampers),
1.2.4x00a0;Period of oscillation,
1.2.5x00a0;Precision, and
1.2.6x00a0;Linearity and calibration of accessory devices that provide on-scale indication of weight.
1.3x00a0;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.
Copyright ©2007-2022 ANTPEDIA, All Rights Reserved
京ICP备07018254号 京公网安备1101085018 电信与信息服务业务经营许可证:京ICP证110310号