Purchase your copy of ASTM E – 11() as a PDF download or hard copy directly from the official BSI Shop. All BSI British Standards. Find the most up-to-date version of ASTM E at Engineering Designation: E – 11Standard Practice for Preparation and Use of an Ice-Point Bath as 1 This practice is under the jurisdiction of ASTM Committee E20 on.
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Use an opaque and thermally insulating cover or stopper that is suitable for the application.
ASTM E – pdf全文-调研报告-在线文档
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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.
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. Cooling helps to preserve the d563 at the ice point for prolonged use. For thermoelectric thermo-elements of high thermal conductivity, as much as mm immersion may be necessary. Summary of Practice 4.
Standards Subscriptions from ANSI provides a money-saving, multi-user solution for accessing standards. A water-ice interface in the bath acts as a heat sink.
The presence of excess water can be detected if water overspill occurs when the ice is depressed. A superscript epsilon indicates an editorial change since the last revision or reapproval. Need more than one copy? In most cases, pressure effects can be ignored 4. It is also intended to be adequate for most other ice-point reference purposes. As ice melts, the interface moves away from the test object, and a temperature difference, which can be as much as several kelvins, is established between the test object and the heat sink.
The loss of precision between a covered and uncovered bath may be below the resolution of liquid-in-glass asmt. Freeze another portion of the water to produce ice for the bath.
ASTM E563 – 11(2016)
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Subscription pricing is determined by: ASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentioned in this standard. Precision and Bias 8. For usual applications, a diameter of at least 70 mm and a depth of at least mm may be adequate. Excessive water in the bath can cause an increase in temperature as denser warm water settles to the bottom.
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Norma ASTM E()
The moment new editions of the standards you monitor are released, changes are made, or appendixes are published, you will be alerted by email. Large chunks of very cold ice added to a bath can produce local temperature depression. Use of the bath must be delayed long enough to establish thermal equilibrium, and the particles shall be sufficiently small so that the bath approaches the required state of ice and air-saturated water in intimate contact.
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Add ice particles, and chilled water, as necessary so that the ice slush column always extends to at least 30 mm below the lowest point of the test object. You can download and open this file to your own computer asrm DRM prevents opening this file on another computer, including a networked server.
This standard is not included in any packages. For this reason surplus water should be removed, as it accumulates, from the bottom of the bath by decanting or siphoning. Please first verify your email before subscribing to alerts. Use clean plastic gloves to handle the ice and equipment. Decant or siphon off excess water.
Thoroughly rinse the equipment with tap water, then rinse with the type of water used for the ice-point bath medium. This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. There is a corresponding effect for changes in atmospheric pressure.