To address the creation of new products that trend seek

• No.2060
• [JIS]P-8117-2009
• [TAPPI]T460om-21
• [ISO] 5636-5-2013

Paper is composed of a mesh structure with an infinite number of through-holes, concaves, and closed spaces. Air permeability test measures resistance to air that passes through the specimen. There is a relationship between air permeability and paper density, formation, water absorption and printability. Air permeability is a measure of the porosity of paper. This machine measures the air permeability of porous materials including papers, filter paper and packaging paper. The inner cylinder of a specified mass gradually moves oil downward in the outer cylinder. The time necessary for a specified volume of air to pass through the specimen is measured by stopwatch.

• No.2060-C
• [JIS]
• [TAPPI]
• [ISO]

This is an automatic counter for labor saving. It counts the signal emitted every time the slit plate mounted on the inner cylinder passes the sensor. When the count reached the preset number, the device displays the elapsed time. Use of this counter with the densometer No.2060 will remarkably increases work efficiency. By setting an air volume on the preset counter, you can make measurement with a desired air volume. A printer (optional) is also available.

• No.2061
• [JIS]
• [TAPPI]T536om-22
• [ISO]

This machine has a configuration similar to the standard densometer, except that mercury is used instead of oil. The inner cylinder of a specified mass gradually moves downwards in the outer cylinder filled with a specified volume of mercury. The time necessary for a specified volume air pass thorough the specimen is measured. The high pressure type is suitable for impermeable materials such as coated paper, which needs 60 to 75 seconds for making 100cc air pass through the specimen on the standard densometer. Higher air pressure shortens the measurement time.

• No.2062
• [JIS]Porosity P-8117-2009
• [TAPPI]Porosity T460om-21,smooth UM574
• [ISO]

This machine was developed for evaluation of printability of papers according to the US TAPPI standard. It readily measures three characteristics, that is, air permeability, smoothness and flexibility. Its configuration is similar to the standard densometer. Particular attachments are used on the lower orifice plate. Under air pressure of the cylinder, air leaks across the paper layers and through the interstices of several specimens, or through the interval between special plug and specimen. The time necessary for allowing leakage of the specified volume of air is measured to evaluate the three characteristics.
TAPPI UM 574 for smoothness