资料摘要
资料下载are two possibilities; external and internal pressure. The battery being self contained will show no external pressure until release of a venting disc or disintegration, the gas released will react with oxygen in the environment. Such tests may simply be carried out by enclosing the battery in a holder. Earlier reported tests used a heavy close fitting container, such a holder compromises thermal data and might explode upon rapid gas release. The usefulness of this data might be questioned since there would be no pressure rise from the start of the test until battery ‘opening’ occurs and then there would be a simple single rapid pressure rise. Perhaps of more interest is the development of internal pressure, how this increases with temperature and the temperature and pressure that can be withstood before opening. For the first time we report calorimetric (thermal and pressure) data and though not shown here associated electrical data (voltage) can be recorded throughout the test. Tests have been carried out with ‘specimen’ 18650 batteries. For the test protocol, minor modifications are necessary to the ARC and to the battery itself. Here is reported the set up protocol, the experimentation and results.
TLS-100
简介:The TLS-100 is a portable thermal conductivity meter used to measure thermal conductivity and thermal resistivity. Perfect for testing the thermal conductivity of soil, polymers, viscous liquids, and other soft materials; as well as testing the thermal conductivity of concrete, rock, stone, or other hard materials. Tests can be performed with the push of a button. The collected data is automatically analyzed and results are displayed immediately.
THW--L2
简介:The Transient Hot Wire (THW-L2) Liquid Thermal Conductivity Meter is an advanced measurement system for direct determination of the thermal conductivity of liquids and pastes in accordance with ASTM D7896. The THW-L2 was designed with speed and operational simplicity in mind. With a single measurement of less than 2 seconds in duration, small volumes of liquids and pastes can be accurately and precisely measured for thermal conductivity. The THW-L2 utilizes a non-stationary measurement approach and rapid test times to limit convective effects for samples with a wide range of viscosities.
HFM brochure
简介:The Heat Flow Meter (HFM) 100 is an easy-to-use rapid technique for the measurement of thermal resistance and thermal conductivity of insulation products, construction materials, packaging, and assemblies. Thermal conductivity is a measure of the ability of a material to conduct heat and can be critical for defining energy efficiency and thermal performance in materials. The Thermtest HFM has been designed and engineered to combine the highest accuracy, repeatability, widest temperature range, and industry leading performance, all at an exceptional value.
AAPS 2014 T3325 Spectrophotometric pKa determination
简介:AAPS 2014 T3325 Spectrophotometric pKa determination
Dissolution titration template method for solubility determination
简介:ScienceDirect-European Journal of Pharmaceutical Sciences:pH Metric Solubility
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