This standard is issued under the fixed designation C ; the number immediately 1 This specification is under the jurisdiction of ASTM Committee C on. ASTM C Standard Specification for High-Temperature Fiber Blanket Thermal Insulation. ASTM C Standard Specification for High-Temperature Fiber Blanket Thermal Insulation. standard by ASTM International, 05/01/ This document has.

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Please first log in with a verified email before subscribing to alerts. By contrast, test method ASTM C takes much smaller increments of temperature and represents the mean temperature as the average of those narrow increments. Asfm are classified into five types by maximum use temperature and five grades by density. The C values range from 33 percent greater to 1 percent lower, depending on the mean temperature.

ASTM C – Standard Specification for High-Temperature Fiber Blanket Thermal Insulation

Understanding the methods used as the basis for different standards can help users choose their reference points appropriately. As the voice of the U. However, for a highly non-linear relationship i. This standard is not included in any packages.

Test method C measures average thermal conductivity1 taking two temperature points one at a very low temperature and one at a very high temperaturecalculating the average of those two data points, and designating that the average for the entire range.

Add to Alert PDF. The Laws of Average and Thermal Performance of Refractory Insulation Materials Depending on the application, refractory insulation uses two types of thermal testing standards: As with all insulation materials, its thermal conductivity changes with mean temperature. C lists thermal conductivity values in two sections, one as determined by C, and the other by C Historical Version s – view previous versions of standard.


Jack calculated his average the same three ways, but he got the same result each time: Definition Difference—The thermal conductivity value listed by C is defined differently than that for C, so one should not expect to find d892 same values listed.

The insulation shall also be tested for non-fibrous content, linear shrinkage, and tensile strength. Their business histories over the first 11 years show striking similarities—and differences: Here is an example: It is informational only and not an official part of the standard; the full text of the standard itself must be referred to for its use and application.

Proceed to Checkout Continue Shopping. They sometimes coordinate internationally so each type of generic material meets minimum performance criteria.

It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use. They may be used to cover plastic pipe and cables to limit flame spread and smoke generation in fire-rated air plenums.

Different Tools V892 More Accurate for Different Measurements—Despite the conflicting definitions, the two sets of numbers should be consistent after the appropriate mathematical adjustments are made; that they are not suggests that different methods are more accurate for different applications.

What Is Average?

Conclusions and Recommendations Material and test standards for thermal insulation materials provide valuable support to specifiers, designers, and users working with high-temperature products.


Each different type of material is designed to perform in particular applications over a particular temperature range.

Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard.

These insulation products are available in flat sheets, rolls, boards, or c89 fibers. Design limitations in the C apparatus limit the ability to make thermal aztm determinations over the lower half of the C temperature range. We have no amendments or corrections for this standard. Please first verify your email before subscribing to alerts.

What Is Average? – Insulation Outlook

The composition can be described as follows: He is a registered professional c89. The pins and wire mesh ensure the insulation material is firmly applied and will resist the effects of vibration and external forces.

Choosing the Right Method for Given Conditions The C method was originally developed for rigid, higher density refractory materials with thermal conductivity values 3 to 10 times greater than those for typical thermal insulation materials.

Your Alert Profile lists the documents that will be monitored. You may delete a document from your Alert Profile at any time. Figure 1 shows these values graphically so they can be more easily compared.