Nj-pfa volumetric flask semiconductor metering bottle 100ml 500ml quantitative bottle

Brand: Nanjing binzhenghong
Model: nj-zh
1、  Product Name: PFA volumetric flask
2、  Material: imported experimental grade PFA raw materials
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Mouth structure: nut design and threaded cover sealing to prevent sample pollution
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Appearance: highly transparent, easy to fix volume
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Ring scale mark calibration: & ldquo; In”
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Calibration tolerance: the scale mark on each PFA volumetric flask is accurately weighed and marked with an electronic balance of one thousandth
The class a tolerance conforms to DIN EN ISO 1042
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PFA material has excellent chemical corrosion resistance
It can be used in strong oxidants, high concentration acid-base, hydrocarbons, ketones and other strong corrosive and organic solvents
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With laser engraving scale line, the marking line is clear, which is convenient to watch the liquid level and accurately determine the volume
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Due to the stability of PFA material, as a constant volume instrument, it has good dimensional stability
Even if 121 ℃, it will not cause the change of calibration tolerance (in order to protect the annular scale mark, the cleaning temperature should be lower than 60 ℃)
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High thermal stability, can withstand - 200 ℃ to + 260 ℃ (as a constant volume vessel, we advise customers not to use it directly as a heating vessel)
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PFA material has superhydrophobic, non-toxic and smooth surface, and will not produce cross groove staining, which will affect the sample data
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As there is currently no grade identification standard for plastic volumetric flasks such as PFA in China, we temporarily refer to the calibration standard of Glass Volumetric Flasks, as follows:
Single standard line volumetric flask

nominal total capacity (ML)		25ml	50ml	100ml	250ml	500ml
allowable capacity (ML)	class A	± zero point zero three	± zero point zero five	± zero point one zero	± zero point one five	± zero point two five
	Level B	± zero point zero six	± zero point one zero	± zero point two zero	± zero point three zero	± zero point five zero
tick mark width (mm)		≤ zero point four				≤ zero point five

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Application field: widely used in ICP-MS, ICP-OES and other trace analysis, isotope analysis and other experiments; CDC, environmental testing center, new materials, new energy, polysilicon, semiconductor and other industries
Features and advantages of our products:
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  Temperature resistance: the service temperature can reach - 200 ~ + 260 ℃
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The laser marking is not disordered
The threaded cover is designed with good sealing and easy to shake
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Clearer laser marking
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The inner wall is smooth without liquid and residue
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Sufficient inventory and short delivery time
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Transparent and visible appearance
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It is resistant to falling, durable and hydrofluoric acid
Compared with glass, it is not easy to be damaged and reduces the risk of injury
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The cleaning temperature is recommended to be lower than 60 ℃
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  High quality plastic raw materials, compared with other plastics, have more stable performance for a long time
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Calibration service can be provided (the cost shall be borne by the demander)
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Application fields: new materials, environmental protection, environment, CDC, rare metals, physical and chemical testing, geochemical analysis and other industries
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  With low dissolution and precipitation characteristics, it is a vessel for storing reference materials and different reagents;
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  Volumetric flask is also called measuring flask
It is a measuring instrument used to prepare a certain volume and concentration solution of a certain substance, Volumetric flasks are of the measuring type;
Warm tip: due to the defects of plastic material itself, it is easy to be affected by external factors such as environment, air and temperature
Therefore, customers need to conduct secondary calibration before use;
 
Nanjing binzhenghong Instrument Co
, Ltd
, Ning quiet
Q  Q No
1: 3167 258  719  Q  Q No
2: 2294 02385 
Hand , Machine 1: 139 139  23002 same as wechat , Hand Machine 2: 130 1654  5846 with wechat ,
Tel / Fax: 025 - 8555  7400  E-mail： zhslc@126
com
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