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BSD -TD Automatic True Density & Porosity Analyzer

The BSD-TD Automatic True Density & Porosity Analyzer is a highly precise instrument designed for measuring true density, open porosity, and closed porosity of a wide range of solid samples. With an accuracy of better than ±0.03% and a repeatability of better than ±0.015%, it provides reliable and precise results, with a resolution of 0.0001 g/ml. The analyzer offers fast testing, completing a single station test in just 0.5 to 1 minute, and doubles its efficiency with two analysis stations.Suitable for a variety of sample types—such as powders, granules, blocks, foams, slurries, and non-volatile liquids—the BSD-TD's test method utilizes a high-volume, direct-sample test cavity, enhancing accuracy by optimizing sample volume utilization. The "bottom-loading bayonet-type" sample pool accommodates larger samples, further improving test precision. Additionally, the system features a fully automatic constant temperature mode with a temperature accuracy error of less than 0.1°C, ensuring consistent environmental conditions for accurate results.

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Key Feature

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1 or 2 Analysis Stations

high efficiency and flexible testing.

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High Efficiency

0.5-1 min test per station

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High Precision

Accuracy ±0.03%, repeatability ±0.015%, resolution 0.0001 g/ml.

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"Bottom-Loading" Sample Pool

Easy install, less dead volume, high accuracy.

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Multiple Sample Pool

1ml, 3ml, 5ml, 10ml, 25ml, and customizable pool sizes.

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Test Chamber Flushing

Choice of vacuum or positive pressure flushing for optimal sample preparation.

Specifications

SpecificationsDetails
Test ParametersTrue Density/ Skeletal Density, Open and Closed Porosity
Test AccuracyAccuracy: ±0.03%; Repeatability: ±0.015%; Resolution: 0.0001 g/ml
Station Qt.1 or 2
Test SpeedSingle station: 0.5-1 minute for full test cycle
Sample Pool Options1ml/3ml/5ml/10ml/25ml and customized size
Sample Pool loadingFast Bottom Loading
Thermostatic ChamberProgrammed thermostatic design, accuracy <0.1℃
Reference ChamberBuilt-in reference chamber with optional extension chamber
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Bottom Loading Sample Pool as Test Cavity

The BSD-TD utilizes a bottom-loading design where the sample pool is directly used as the test cavity, improving volume utilization and enhancing test accuracy. This design eliminates the need for a separate test cavity barrel and features a fast loading and various sample pool that easily accommodates both micro- and large-volume samples, also different shapes, offering greater flexibility and precision.

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Inner Square Sample Pool for Improved Accuracy

The BSD-TD is equipped with an inner square sample pool, specifically designed for rectangular samples. This unique design provides higher sample pool utilization—over 80% for rectangular samples—compared to the standard cylindrical sample pools, which only achieve about 15% utilization as per GB/T 10799-2008. The square shape also makes it easier to handle and cut rectangular samples, improving test accuracy and efficiency.

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Advanced Temperature Control to enhance test accuracy and stability.

It features a gas source pre-constant temperature tube that pre-conditions the test gas to the desired temperature before it enters the reference chamber, ensuring consistent gas temperature. Low-power solenoid valves are used throughout the instrument: This design effectively eliminates thermal interference with highprecision measurements, ensuring excellent data accuracy and repeatability.In addition, the optimized valve control significantly reduces helium consumption, thereby lowering operating costs without compromising performance. Additionally, a constant temperature bath with a built-in convection fan maintains stable test conditions, even below room temperature, optimizing heat exchange efficiency for precise, reliable measurements.

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Other Feature

Bottom-Mounted bayonet design supports large-volume samples. The sample cell adopts a "bottom-mounted" design, serving directly as the test chamber, rather than the traditional "top-mounted" sleeve-in-cell structure where a separate sample holder is placed inside the chamber.Using the sample cell as the test chamber reduce dead volume and thereby enhance measurement accuracy. measurement accuracy.

Inner square sample cell minimizes error in porosity testing for block samples. The rectangular sample cell is designed for rectangular samples, with a volume utilization rate exceeding 80%, making it more suitable for open/closed porosity testing. The stainless steel construction ensures durability and long service life.

This design effectively eliminates thermal interference with highprecision measurements, ensuring excellent data accuracy and repeatability.In addition, the optimized valve control significantly reduces helium consumption, thereby lowering operating costs without compromising performance.

Equipped with a gas source pre-temperature-stabilization tube, allowing the test gas entering the reference cell to be pre-equilibrated to the test temperature.

Programmable system with precision <0.1°C ensures stable and repeatable testing.Automatic enter analysis test after thermostat process.

Typical Cases & Paper Citation

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