Liquid-In-Glass Thermometers. A liquid-in-glass thermometer is the simplest and most commonly employed type of temperature measurement device. It is one of the oldest thermometers available in the industry. It gives fairly accurate results within the temperature range of -200 to 600Â°C. No special means are needed to measure temperature via these thermometers.
This brings us to the definition of detection or reporting limits. The smallest concentration (or amount) of analyte, that can be reported by a laboratory is called reporting limit. AIHA requires RL (reporting limit) which is LOD times a safety factor selected by the laboratory.
Control limits, also known as natural process limits, are horizontal lines drawn on a statistical process control chart, usually at a distance of Â±3 standard deviations of the plotted statistic from the statistic's mean.ontrol limits should not be confused with tolerance limits or specifications, which are completely independent of the distribution of the plotted sample statistic.