Continuing Calibration Verification (CCV) Sample – A calibration standard, check standard or LCS, that is analyzed periodically, no less than one per preparation batch and at the end of the analyses.

2024年11月14日 · “连续校准验证（Continuing Calibration Verification，简称CCV）是一种实验室操作程序，用于确保分析仪器在校准后的性能保持稳定，并且能够持续产生准确和精确的数据。 CCV简介. CCV是质量控制（QC）的重要组成部分，它涉及到在一定数量的样品分析后，使用一个校准标准来验证仪器的性能是否与初始校准时保持一致。 • 初始校准：使用至少3个浓度的标准溶液和一个空白（对于线性校准）或至少5个浓度的标准溶液和一个空白（对于非线性校准）来建 …

Summary of Holding Times and Preservation for Volatile Organic Compounds by Gas Chromatography/Mass Spectrometry . Individual target compounds are listed in Table 1B.

2018年12月11日 · Continuing calibration verification (CCV): A solution containing a known concentration of analyte typically derived from the same source as the calibration standards. The CCV is used to assure calibration accuracy during each analysis run. It should be run for each analyte as described in the particular analytical method.

Continuing Calibration Verification (CCV) Actions for Low/Medium Volatiles Analyses ........................................................................................................................................ 17

Leaky control valves increase the call for additional chilled water or heating water flows creating waste, which is called Ghost Energy. 1% leakage creates a 5 to 10% energy loss. The characterizing disc defines the change in flow as the ball opens to create a flow characteristic that can be defined as an equal percentage flow curve.

Verification (CCV) Before samples, after every 10 samples, and end of run ; 90-110% of expected concentration : 1. Re-calibrate and verify 2. Re-analyze samples back to last acceptable CCV : Contract Required Detection Limit Verification Standard (CRI)

A small, moveable work table with a reflected PC display extension and touch capability. It was built on the open source software Community Core Vision (CCV). The main interface for CCV, on the left is the raw infrared image, the right shows the filtered image and registered touch points.

CCV was analyzed six times throughout the run. The mean recoveries and range are also given in Table 4. All CCV recoveries were within ±10% of the expected value. ... ... Currently,...

• R1234ze(E) can be used for CCV size up to 35s according to the PED category I, Fluid II • For the CCV in oil line application, please contact Danfoss for detailed information. • CCV 35s can be used with €ammable refrigerants, without declaration of PED category II