This standard is issued under the fixed designation C ; the number immediately 1 This specification is under the jurisdiction of ASTM Committee C on. 1 Dec are defined by ASTM as insulations composed principally of fibers the requirements of ASTM C Type I, Grade A” or “Mineral Wool pipe. ASTM Standard. C Grade I. C ASTM Standard. Temp (°F) – Max. . Granular. Granular. Granular Type of Material. ASTM Standard. C Type I. C
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The standard contains five types classified primarily by maximum use temperature. See Annex A1 of this standard.
Failure to use a vapor barrier can lead to insulation and system damage. The standard also contains requirements for sag resistance, linear shrinkage, water-vapor sorption, surface-burning characteristics, hot surface performance, and non-fibrous shot content.
Historical Version s – view previous versions of standard.
Exploring Insulation Materials
The materials are classified into five types according to the processing method used to form the material and the operating temperatures and into two grades according to heating requirements.
The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard. These insulations are flexible and are normally supplied as batts or rolled blankets. These products are intended to keep the insulation material dry for chilled water piping in high-humidity locations. These pipe insulation products may be specified with various factory-applied facings, or they may be jacketed in the field.
All products should conform to the required values of hot surface performance, non-fibrous content, use temperature, sag resistance, linear shrinkage, water vapor sorption, surface-burning characteristics, apparent thermal conductivity, and mean temperature.
This standard does not purport to address all of the safety concerns, if any, associated with its use. This abstract is a brief summary of the referenced standard.
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The fibers may be organic or inorganic and they are normally but not always held together by a binder. The standard also contains requirements for linear shrinkage, water-vapor sorption, surface-burning characteristics, odor emission, corrosiveness to steel, rigidity, and shot non-fibrous content.
The asrm may be specified with various factory-applied facings, or may be ordered unfaced. Mineral Fiber Block and Board.
Each of these types is further classified by compressive resistance.
ASTM C – 12 Standard Specification for Mineral Fiber Pipe Insulation
Fibrous insulations are composed of small-diameter fibers that finely divide the air space. Work Item s – proposed revisions of this standard.
The standard further classifies products by grade. Refer to Practice C to aid material selection. These products are supplied in rigid and semi-rigid board form.
Mineral Fiber Fiberglass and Mineral Wool Mineral fiber insulations are defined by ASTM as insulations composed principally of fibers manufactured from rock, slag, or glass, with or without binders. Mineral fiber pipe insulations systems are also available with self-drying wicking material that wraps continuously around pipes, valves, and fittings. Typical inorganic fibers include glass, rock c5547, slag wool, and alumina silica.
The pipe insulation may be molded or precision v-grooved with one or more walls split longitudinally and used up to a specified temperature. Further, there is an optional requirement in ASTM C for stress corrosion aztm if the product is to be used in contact with austenitic stainless steel piping. This specification covers mineral fiber pipe insulation that are formed into hollow cylinders for standard pipe and tubing sizes.
ASTM does not give any warranty express or implied or make any representation that the contents of this abstract are accurate, complete or up to aetm. Mineral Fiber Fiberglass and Mineral Wool. Fiberglass and mineral wool products fall in this category.
Follow Us On Twitter http: Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard. The specified maximum thermal conductivity for all types is 0. Mineral fiber pipe insulation sections are typically supplied in lengths of 36 inches, and are available for most standard pipe and tubing sizes.
Mineral fiber insulations are defined by ASTM as insulations composed principally of fibers manufactured from rock, slag, or glass, with or without binders.
Further, there is an optional requirement in ASTM C for stress corrosion performance if the product is to be used in contact with austenitic stainless steel. Category 1 materials have no requirement for compressive resistance, while Category 2 materials require a minimum compressive resistance value. There is some confusion concerning the nomenclature used for these materials.
This standard contains five types classified by maximum use temperature and thermal conductivity. The standard also contains requirements for flexibility, water-vapor sorption, odor emission, surface-burning characteristics, corrosiveness, and shot content. The standard contains seven types classified by maximum use temperature and thermal conductivity.
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. Specifiers are cautioned to call out both the specific material and the ASTM type and grade when specifying these products. The mineral fiber insulation should be manufactured from molten mineral substances such as rock, slag, or glass and processed into fibrous form using a binder, and adhesives when preferred.
It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. Fibrous Insulations Fibrous insulations are composed of small-diameter fibers that finely divide the air space.