Purity Analysis of Heptafluoropropane in Gas Chromatography Fire Extinguishers

GC-7900Purity Analysis of Heptafluoropropane in Gas Chromatography Fire Extinguishers

Fixed temperature suspension typeheptafluoropropanefire extinguishingDevice: Used for small protective areas such as distribution rooms, transformer rooms, instrument and equipment rooms, small oil depots, computer rooms, software libraries, communication rooms, archives and cultural relics data rooms.He also plays a very important role in our daily lives in important places such as the central management room, control room, and pump room,encounterFire occursFire extinguishers are，foreverthe first to appearHowever, we arePurchase andQuality issues arise during useDirectly affecting the effectiveness of fire extinguishing，Fire should not be underestimated,So we are producing or purchasingfire extinguisherQuality inspection is essential when operating the system,howquality inspectionQuality, TestingThe methodAnd techniqueWhat else is there?

Select professional testing equipment and devices(Gas chromatograph Xuansheng Scientific Instrument)Check the purity of heptafluoropropane fire extinguishing

GC-7900Purity Analysis of Heptafluoropropane in Gas Chromatography Fire Extinguishers

The chemical components in the fire extinguishing agent bottle groupComposition analysis? What is the content，The gas chromatograph adopts gas chromatography as a professional methodofdetectionEquipment installationPerform testing on the analyzer

sample collectionExtract samples from the fire extinguishing agent bottle group and send them to professional organizations or inspection equipment manufacturers for testing to obtain professional data conclusions.GC-7900gas chromatographDetecting the purity of heptafluoropropane Acidity,The trace moisture analyzer completes the sample analysisThe data measured by the micro moisture meter for moisture content must be consistent

Gas chromatograph fire extinguisher composition detectionInstrument configuration

Gas composition analysis of fire extinguisher gas chromatography analysis steps:

After starting the gas chromatograph, adjust it according to the specified conditions. Once the instrument is stable and meets the requirements, the purity of the sample can be tested. When sampling from a small steel cylinder

First, connect the sample cylinder of heptafluoropropane (HFC227ea) to the sampling tube, and then lay down the cylinder to take a liquid phase gasification sample

Open the valve of the steel cylinder and allow the heptafluoropropane (HFC227ea) to exhaust for 1-3 seconds. Use a glass syringe to extract 2-3mL of the heptafluoropropane (HFC227ea) sample and inject it into the chromatograph. Use peak area normalization method to calculate the purity X (%) according to the formula

Take the arithmetic mean of three parallel measurement results as the measurement result, and the deviation of each measurement should not exceed 0.05%

Analysis conditions of GC-7900 heptafluoropropane gas chromatograph
Evaluation conditions for chromatographic column: Column temperature: 200 ℃
Vaporization temperature: 220 ℃ Detection temperature: 220 ℃
Injection method: Gas six way valve detector: FID

Fire extinguisher component analyzer

Analysis results of heptafluoropropane gas chromatograph

Peak number, peak name, retention time, peak area, and content

1 Impurity 3.973 89.231 205.350 0.0089

2 heptafluoropropane 4.082 511154.406 2299822.50fruit 99.9911

Special gas chromatographs for heptafluoropropane analysis and fire extinguishing agent analysis, with precise instruments, stable performance, and analytical results