ASTM C828 PDF

Historical Version s - view previous versions of standard. More C This test method contains procedures using low-pressure air for testing the integrity of installed vitrified clay pipe lines such as gravity-flow sewer pipes. The procedures detailed here should be performed on lines after adequately and properly plugging and bracing connection laterals, if any, and after the trenches are backfilled for a sufficient time. This test method can also be used as a preliminary test to demonstrate the condition of the line prior to backfill and further construction activities. This abstract is a brief summary of the referenced standard.

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If only a few pipe joints are subject to pressure in testing a shorter sewer line, why is an allowable pressure loss per joint reduced when testing a longer sewer line?

The test is about the volume of air lost, not the pressure. For a given diameter, say that the length of the line doubles.

Both the number of joints and the volume of air in the pipe double. The test time doubles, also. Therefore, the average leakage per joint remains unchanged. For the low pressure used for the test, pressure is inversely related to volume.

Pressure is measured for convenience - pressure measurement is easy, volume measurement is not. Red Flag This Post Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework. Asset lifecycles of capital assets like manufacturing or utility plants are decades-long.

But economic shifts and trade policy disruption mean executives must make rapid adjustment to asset portfolios. Download Now. Traceability is increasingly important in the food and beverage sector due to strict regulations and rising consumer demand for corporate social responsibility.

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Resources Asset lifecycles of capital assets like manufacturing or utility plants are decades-long. Download Now Traceability is increasingly important in the food and beverage sector due to strict regulations and rising consumer demand for corporate social responsibility.

Download Now Early Supplier Involvement has long been a strategy employed by manufacturers to produce innovative products.

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