ASTM D1050 PDF

ASTM D — 05 standard specification for rubber insulating line hose 0. This abstract is a brief summary of the referenced standard. Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard. Five classes of line hose, differing in electrical characteristics, are provided and are designated as Class 0, Class 1, Class 2, Class 3, and Class 4.

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More D For the first use, it is generally desirable to have the capacitance of the support as small as possible, consistent with acceptable mechanical, chemical, and heat-resisting properties. A low value of permittivity is thus desirable. For the second use, it is desirable to have a high value of permittivity, so that the capacitor is able to be physically as small as possible.

Intermediate values of permittivity are sometimes used for grading stresses at the edge or end of a conductor to minimize ac corona. Factors affecting permittivity are discussed in Appendix X3. In high frequency applications, a low value of loss index is particularly desirable, since for a given value of loss index, the dielectric loss increases directly with frequency.

In certain dielectric configurations such as are used in terminating bushings and cables for test, an increased loss, usually obtained from increased conductivity, is sometimes introduced to control the voltage gradient. In comparisons of materials having approximately the same permittivity or in the use of any material under such conditions that its permittivity remains essentially constant, it is potentially useful to consider also dissipation factor, power factor, phase angle, or loss angle.

Factors affecting ac loss are discussed in Appendix X3. However, it is possible that deterioration due to thermal aging will not affect dissipation factor unless the material is subsequently exposed to moisture. While the initial value of dissipation factor is important, the change in dissipation factor with aging is often much more significant. Scope 1. The frequency range addressed extends from less than 1 Hz to several hundred megahertz.

A reader interested in issues associated with a specific material needs to consult ASTM standards or other documents directly applicable to the material to be tested. 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.

For specific hazard statements, see

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For rapid colour grading within predetermined colour limits, the glass standards can be set to the two limiting colours, making it easy to see if the sample is within tolerance. The tungsten halogen light source is colour corrected to CIE standard illuminant C, which guarantees constant lighting conditions for colour grading, day or night and irrespective of ambient lighting. Principle Three cylindrical glass sample jars with an internal diameter of 33mm are housed in the 3-section sample container; the central of Operation jar is half filled with the sample and the outer ones are filled with distilled water. The sample is viewed through a prism which brings the sample and the standards into adjoining fields of view. The two discs containing the colour standards are rotated by turing the control knobs on the front of the comparator until the colour of the oil sample falls between two standards which are 0. Samples which are not clear, such as petroleum waxes, can be heated to above the cloud point; samples that are darker than 8.

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ASTM D1050 PDF

Teshura A consortium involving academia, an environmental charity, and commercial partners will install a network of multiparameter AQMesh air quality monitors, whilst also operating two Google Street View cars that will The closing of the transaction occurred on The depth of adapter end of connector-end style line hose shall be not less than a certain value, and its inside diameter shall be such that it will snugly grip the end of the line hose of the same size which it joins. For specific precautionary statements, see The interlocking lip shall be closely adjacent to the inside surface contour of the outer wall. This abstract is a brief summary of the referenced standard. IN USA, headquartered in Norwood, Massachusetts, manufactures a range of ozone generators, ozone analyzers and other gas monitoring instruments utilizing ultraviolet and infrared based technologies. This specification covers acceptance testing of rubber insulating line hose for use as a portable protective device for protection of workers from accidental contact with live electrical conductors.

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Mijind Forming part of a network of over sensors, the Urban Observatory led by Newcastle University has Historical Version s — view previous versions of standard. ASTM D — 05 d specification for rubber insulating line hose 0. IN USA, headquartered in Norwood, Massachusetts, manufactures a range of ozone generators, ozone analyzers and other gas monitoring instruments utilizing d and infrared based technologies. Five classes of line hose, differing in electrical characteristics, are provided and are designated as Astj 0, Class 1, Class 2, Class 3, and Class 4. 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.

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Hoses and hose assemblies Die Annotation des Normtextes ASTM D : This specification covers acceptance testing of rubber insulating line hose for use as a portable protective device for protection of workers from accidental contact with live electrical conductors. Five classes of line hose, differing in electrical characteristics, are provided and are designated as Class 0, Class 1, Class 2, Class 3, and Class 4. The line hose shall be constructed in four styles: straight style, connector-end style, extended-lip style, and connectorend extended-lip style. The line hose shall be formed with an interlocking lip of sufficient length to prevent the device from being dislodged accidentally from the conductor it covers. The interlocking lip shall be closely adjacent to the inside surface contour of the outer wall. The depth of adapter end of connector-end style line hose shall be not less than a certain value, and its inside diameter shall be such that it will snugly grip the end of the line hose of the same size which it joins. Each line hose shall conform to the physical requirements such as determined tensile strength, elongation, tension set, tear resistance and moisture absorption.

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