ASTM A – Designation: A /A M – 98 (Reapproved ) Standard Test Method for Conducti. Purchase your copy of ASTM A/AM – 17 as a PDF download or hard copy directly from the official BSI Shop. All BSI British Standards. This standard is issued under the fixed designation A/AM; the number This test method is under the jurisdiction of ASTM Committee A01 on Steel, 2.

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Your comments are invited either for revision of this standard or for additional standards and should be addressed to ASTM International Headquarters.

For proposed working zones greater than, or equal to, 12 in. Link to Active This link will always route to the current Active version of the standard. Users of this standard are expressly advised that determination of the validity of any such patent rights, and the risk of infringement of such rights, are entirely their own responsibility.

Details of this procedure shall be as agreed to between purchaser and supplier. Regardless of heat treat furnace type, or processing cycle, it may be necessary for users to know the temperature uniformity in the furnace and whether the material is processed in a zone within the furnace that is capable of meeting the applicable permissible temperature variation requirements.

ASTM A991/A991M – 17

The rate of conveyance shall be representative of normal operating conditions. AMS Pyrometry3 3. Historical Version s – view previous versions of standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Place them at the outer extremities, the center of the proposed working zone, and in areas of suspected variability in the proposed working zone. Attach survey test sensors to, or set them in atsm load.

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ASTM International – Standard References for ASTM A / AM – 17

Survey documentation requirements, and the procedure used to subsequently establish the furnace working zone, are defined in this test method. Use of representative material to simulate product during survey is permitted.

A superscript epsilon e indicates an editorial change since astk last revision or reapproval. In each test, determine the temperature variation pattern at one or more of the test locations. Zstm to such national standards shall be done at least once every two years. The values stated in each system are not exact equivalents; therefore, each system is to be used independently of the other, without combining sstm in any way.

Examples of these surveying techniques are listed below. Interpretation of Results and Establishment of the Working Zone 9. Regardless of heat treat furnace type, or processing cycle, it may be necessary for users to know the temperature uniformity in the furnace and whether the material is processed in a zone within the furnace that is capable of meeting the applicable permissible temperature variation requirements.

A major furnace modi? All other conditions described in 6. Individual reprints single or multiple copies satm this standard may be obtained by contacting ASTM at the above address or at phonefaxor service astm. It is the responsibility of the user of aa991 standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. Starting time and chart speed shall be marked on the original temperature charts, 8. A number in parentheses indicates the year of last reapproval.

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Survey documentation requirements, and the procedure used to subsequently establish the furnace working zone, are de?

Originally approved in If you feel that your comments have not received a fair hearing you should make your views known to the ASTM Committee on Standards, at the address shown below. This method is used to determine the capability of the furnace to meet the permissible temperature variation specified in the applicable product specification, or as agreed to by the purchaser and supplier of heat treat services.

The acceptance of any such additional requirements shall be dependent on negotiations with the supplier and must be included in the order as agreed upon by the purchaser and supplier. 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.

Current edition approved Oct. This method is used to determine the capability of the furnace to meet the permissible temperature variation speci?