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Meaningful tests to establish the degree of cleanness of a surface are few, and those are often difficult to administer and to evaluate objectively. Visual inspection is suitable for the detection of gross contamination, scale, rust, and particulates, but may not reveal the presence of thin films of oil or residual chemical films. In addition, visual inspection of internal surfaces is often impossible because of the configuration of the item.

Methods are described for the detection of free iron and transparent chemical and oily deposits. Tests with acceptance criteria to demonstrate that the passivation procedures have been successful are listed in 7. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard.

For more specific safety precautions see 7. This practice is intended to provide reasonably safe walking surfaces for pedestrians wearing ordinary footwear.

These guidelines may not be adequate for those with certain mobility impairments. It also identifies the mode of specimen failure.

This standard is also available to be included in Standards Subscriptions. Standards Subscriptions from ANSI provides a money-saving, multi-user solution for accessing standards. Subscription pricing is determined by: the specific standard s or collections of standards, the number of locations accessing the standards, and the number of employees that need access. Reset Filters. All Books. All Packages. Joint Commission. Joint Commission Int.

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Integrated Services Streamline your systems. Save time and resources. Generate new revenue. Proficiency Testing Programs Evaluate and improve your laboratory's performance. Explore the benefits of membership. Latest on Twitter. Ask Document Center Inc. At the test temperatures and under the stresses imposed, the plastic materials shall have a negligible creep or elastic strain rate or both, insofar as these properties would significantly affect the accuracy of the measurements.

For materials having very low coefficient of expansion, interferometer or capacitance techniques are recommended. This test method is intended for determining the coefficient of linear thermal expansion under the exclusion of these factors as far as possible.

In general, it will not be possible to exclude the effect of these factors completely.