PYCNOMETER

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Pycnometer is a very precise method used for measuring the density of substances in the gaseous, liquid and solid states. It can help quantify the buoyancy of a substance in a fluid or used to determine the density of a liquid such as water, by filling the bottle with the liquid and then weighing it.

Pycnometer bottles differ depending on the material and the size of sample chambers and perform most of its analyses in minutes to provide accurate information and a host of content calculation profiles. The benefit of using a pycnometer, is its speed and precision to time-critical laboratory processes as well as reporting time and productivity.

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The Pycnometer which comes from the Greek word ‘Puknos’, meaning “density”, and also referred to as Pyknometer or specific gravity monitor bottle. The Pycnometer is a flask/bottle with a tight-fitting, round glass stopper which has a very fine hole through it, so that a true accurate volume reading can be made. The Pycnometer enables the accurate measuring of the density of fluids such as mercury and water.

If you weigh the pycnometer empty, full of water, and then full of a liquid whose specific gravity is recorded, then the accurate calculation of the specific gravity can be read. In addition to measuring liquids, it is possible to measure the particle density of powders using the pycnometer which usually would not be possible using the usual method.

To start with you would add the powder to the pycnometer which you would then weigh, you would then proceed to fill the pycnometer with a known density liquid, of one in which is completely insoluble with the powder. From this the weight of the displaced liquid can now be measured accurately giving you the specific gravity of the powder.

Determining the density of liquid by using a pycnometer is a very precise method. It makes use of a working liquid which has a known density for example water.

A pycnometer is an expensive and rather delicate flask; please exercise care when handling it.

At Ascott with have been supplying businesses with Pycnometers for many years, our aluminium density cups are very popular.

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PYCNOMETER

PYCNOMETER

Ref: Pyknometers

Quantity:   

Choice:
T01-60855 - 50ml Aluminium Density Cup £95.00
T01-60850 - 100ml Aluminium Density Cup £95.00
T01-60865 - 50ml Stainless Steel Density Cup £119.00
T01-60860 - 100ml Stainless Steel Density Cup £119.00


Calibration Certificate (additional GBP 50.00)

A range of Pycnometers (also called pyknometers or density cups) for determining the specific gravity or density of coatings, pastes or similar liquids. These specific gravity cups are precision machined to a known internal volume. The pycnometer is filled with the sample to be measured, capped and weighed using precision balances. The sample mass at a known temperature can then be used to calculate its density.


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Product
Pycnometer
Accessory for
Not applicable
Part Number
T01-60855 Pycnometer 50 ml Aluminium
T01-60850 Pycnometer 100 ml Aluminium
T01-60865 Pycnometer 50 ml Stainless Steel
T01-60860 Pycnometer 100 ml Stainless Steel
Range
T01-60855 & T01-60865 - 50ml
T01-60850 & T01-60860 - 100ml
Accuracy
Not applicable
Resolution
Not applicable
Standards
ISO 2811, DIN 53 217, ASTM D 1475
Features and Benefits
T01-60850 & T01-60855 - anodised aluminium Cup
T01-60860 & T01-60865 - stainless steel Cup
Dimensions and Weights (packed)
8 x 5 x 3 cm / 0.05 kg
Calibration Certificate
Available at extra cost (tick box above)
Warranty
1 year

Coatings, paint, lacquers, ink, varnishes, glue and cosmetics.


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