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How to choose a gas chromatograph 2 --- Analysis Purpose
1. Qualitative analysis: is analyzed compound known or unknown, with or without standard substance? 2. Quantitative analysis: constnat, semi-micro, micro, trace, ultra trace. 3. Quantitative precision and analysis accuracy, for example, if it requires semi-quantitative analysis only, it will be much ...
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How to choose a gas chromatograph 1 --- Sample Situation
1. The composition and status of sample. Is the sample gas state, liquid state, solid state or mixed state? Can the sample be analyzed directly by gas chromatography? 2. Is the sample composition thermal-unstable, easy decomposable or easy catalytic reaction? Do time, temperature, pressure etc. cause ...
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How to choose a right transformer oil gas analyzer?
1. QualityA. NoiseIt refers to high frequency noise generated by linear pulses of electrical components, temperature fluctuation, voltage and other non-solubles; it also refers to irregular fluctuation of baseline.Noise is directly related to detection sensitivity of the instrument, the larger the noise, ...
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Some suitable kinematic viscosity bath liquids
Methyl alcoholThis is quite volatile, has a low flash point, and has a degree of toxicity. Ethyl alcohol is also volatile and has a low flash point, but unless iingested is relatively non-toxic. Some halogen-based fluids are marketed as low temperature bath fluids, but these also have a high volatility, ...
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How to choose a suitable kinematic viscosity bath liquid
In order to accurately measure kinematic viscosity in glass capillary viscometers, the viscometers must be suspended in a constant temperature bath. The ideal bath fluid would possess low viscosity, high heat capacity, and low vapor pressure over a wide range of temperatures. In addition, the liquid ...
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Summary of DGA chromatographic working station
DGA chromatographic working station collects and processes the chromatographic signal of gas which sampled from transformer oil. It calculated the consistency of various kinds of dissolved gas in insulating oil. Its features are as follows:1. Automatically report Three-ratio code, fault nature and typical ...
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Recovery rate of waste oil recycling machine
During process of waste oil recycling, the machine removes more than 95% harmful substances and nearly does not affect original base oil(including its additives), therefore the stability, oxidation resistance and anti-emulsification etc. of oil are better than normal base oil. The following table is ...
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Features of waste oil recycling machine
·Environment protection and energy saving, waste oil recycling project is for benefit of mankind;·After treatment, the recycled oil is National Standard 150N base oil(Equal to API Standard Class II base oil);·During process of treatment, do not need to add any chemical additives, low operation cost;·Because ...
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Working principle of waste oil recycling machine
The waste oil recycling machine initially removes impurities and water(Vacuum dehydration process, dehydration heating temperature is about 60℃– 80℃); then, vacuum flash vaporization on heated oil(Distillation heating temperature is about 230℃–300℃. Heating temperature is not the same due ...
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Features of transformer oil recycling machine
The transformer oil recycling machine (transformer oil regeneration) can vacuumize transformers during installation and maintenance at site, at the same time, it can accomplish dehydrating and degassing of transformer oil, accordingly, it shortens working time for oil treatment.1. Strong filtration impurity-removing ...
