ASTM E2977-2015

Standard Practice for Measuring and Reporting Performance of Fourier-Transform Nuclear Magnetic Resonance (FT-NMR) Spectrometers for Liquid Samples

非常抱歉，我们暂时无法提供预览，您可以试试： 免费下载 ASTM E2977-2015 前三页，或者稍后再访问。

如果您需要购买此标准的全文，请联系： 。

注意： 点击下载后，生成下载文件时间比较长，请耐心等待......

标准号

ASTM E2977-2015

发布日期

2015年

实施日期

废止日期

无

国际标准分类号

17.060 (Measurement of volume, mass, density, visc

发布单位

US-ASTM

适用范围

4.1x00a0;This practice permits an analyst to compare the performance of an NMR spectrometer for a particular test on any given day with the instrument's prior performance for that test. The practice can also provide sufficient quantitative performance information for problem diagnosis and solving. If complete information about how a test is carried out is supplied and sufficient replicates are collected to substantiate statistical relevance, the tests in this practice can be used to establish the setting and meeting of relevant performance specifications. This practice is not necessarily meant for the comparison of different instruments with each other, even if the instruments are of the same type and model. This practice is not meant for the comparison of the performance of different instruments operated under conditions differing from those specified for a particular test.

1.1x00a0;This practice covers procedures for measuring and reporting the performance of Fourier-transform nuclear magnetic resonance spectrometers (FT-NMRs) using liquid samples.

1.2x00a0;This practice is not directly applicable to FT-NMR spectrometers outfitted to measure gaseous, anisotropically structured liquid, semi-solid, or solid samples; those set up to work with flowing sample streams; or those used to make hyperpolarization measurements.

1.3x00a0;This practice was expressly developed for FT-NMR spectrometers operating with proton resonance frequencies between 200 and 1200 MHz.

1.4x00a0;This practice is not directly applicable to continuous wave (scanning) NMR spectrometers.

1.5x00a0;This practice is not directly applicable to instruments using single-sideband detection.

1.6x00a0;Unitsx2014;The values stated in SI units are to be regarded as the standard. No other units of measurement are included in this standard.

1.7x00a0;This standard does not purport to address all of the safety concerns, if any, 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.

ASTM E2977-2015 中可能用到的仪器设备