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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Their business histories over the first 11 years show striking similarities—and differences: These AES fibers are designed to be bio-soluble i. C lists thermal conductivity values in two sections, one as determined by C, and the other by C The surface to which pneumatically applied high-temperature fiber insulation is applied is typically prepared with weld pins and wire mesh, the latter being applied a distance off the surface 1 inch less than the finished thickness.
They may be used to cover plastic pipe and cables to limit flame spread and smoke generation in fire-rated air plenums.
The user shall establish appropriate safety and health practices and determine the applicability of regulatory requirements prior to use. They sometimes coordinate internationally so each type of generic material meets minimum performance criteria.
The following hypothetical situation illustrates how different approaches to averaging can yield vastly different values. Why do the different thermal test procedures offer two different sets of results for the same material, tested at the same mean temperature?
Link to Active This link will always route to the current Active version of the standard. Subscription pricing is determined by: The pins and wire mesh ensure the insulation material is firmly applied and will aztm the effects of vibration and external forces.
In most cases, the values for a specific grade at a specific mean temperature are significantly different. With ASTM C, the measured thermal conductivity value associated with a specific temperature is the actual value of thermal conductivity at that mean temperature—i. By contrast, test method ASTM C takes much smaller increments of temperature and represents the mean temperature as the average of those narrow increments.
Products are classified into five types by maximum use temperature aetm five grades by density. Jill calculated her average three ways, getting different answers each time: High-temperature fiber insulations are fibrous insulations, varying in flexibility, density, and composition, with or without binders. However, for a highly non-linear relationship i.
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. The different approaches illustrate that the average thermal conductivity value over a large temperature range, in general, can be significantly different from the thermal conductivity value at the average temperature of that range.
Depending on the application, refractory insulation uses two types of thermal testing standards: Also, this type of fiber insulation is typically dimensionally stable asttm exposure to the maximum rate temperature for the particular type I, II, or III.
ASTM C – Standard Specification for High-Temperature Fiber Blanket Thermal Insulation
Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard. The satm are sstm from mineral substances such as silica, alumina, calcium, and magnesium processed from the molten state into fibrous form.
Figure 2 presents the same information graphically. These insulation products are available in flat sheets, rolls, boards, or loose fibers.
As the voice of the U. 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.
Standard Specification for High-Temperature Fiber Blanket Thermal Insulation
Material and test standards for thermal insulation materials provide valuable support to specifiers, designers, and users working with high-temperature products. The values given in aztm are mathematical conversions to SI c92 which are provided for information only and are not considered standard. Your Alert Profile lists the documents that will be monitored. Please first verify your email before subscribing to alerts. The two methods are thus complementary for application over the entire C temperature range.
He is a registered professional engineer.
What Is Average?
The standard contains requirements for thermal conductivity, density, maximum use temperature, non-fibrous shot content, linear shrinkage, and tensile strength. She calculated total sales for all years and divided by As mean temperature increases, therefore, the correspondingly larger test temperature differences make it more difficult to devise effective thermal guarding techniques, resulting in greater measurement deviations due to increases in extraneous heat loss.
Please first log in with a verified email before subscribing to alerts. ASTM materials standards can list typical or limiting values as a guide for comparing available products and making informed purchase decisions.
This standard is not included in any packages. The C values range from 33 percent greater to 1 percent lower, depending on the mean temperature. The insulation shall also be tested for non-fibrous content, linear shrinkage, and tensile strength.
Work Item s – proposed revisions of this standard.