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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The rate of conveyance shall be representative of normal operating conditions. Examples of these surveying techniques are listed below. 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.
Results of the application of this test method shall be expressed as a variation from a temperature set point. Your comments are invited either for revision of this standard or for additional standards and should be addressed to ASTM International Headquarters. Furnace Survey Equipment 5. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other.
For proposed working zones greater than, or equal to, 12 in. It provides validation of temperature uniformity by a series of tests rather than a single test. In each test, determine ast, temperature variation pattern at one or more of the test locations. Place them at the outer extremities, qstm center of the proposed working zone, and in areas of suspected variability atm the proposed working zone.
Individual reprints single or multiple copies of this standard may be obtained by contacting ASTM at the above address or at phonefaxor service astm.
Calibration to such national standards shall be done at least once every two years. Documentation of Survey Asm 8. The values stated in each system are not exact equivalents; therefore, each system is to be used independently of the other, without combining values in any way.
The working zone may be comprised of one or more heating zones in the furnace. Combining asstm from the two systems may result in non-conformance with the standard. Historical Version s – view previous versions of standard. 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 asmt use. Your comments will receive careful consideration at a meeting of the responsible technical committee, which you may attend.
A superscript epsilon e indicates an editorial change since the last revision or reapproval.
ASTM International – Standard References for ASTM A / AM – 17
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. Survey documentation requirements, and the procedure used to subsequently establish the furnace working zone, are defined in this test method.
Within the text, the SI units are shown in brackets. Starting time and chart speed shall be marked on the original temperature charts, 8. Use of representative material to simulate product during survey is permitted.
This method is used to determine the capability of the furnace to meet the permissible temperature variation speci? Heat Treatment in the Working Zone Interpretation of Results and Establishment of the Working Zone 9.
ASTM A991/A991M – 17
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. Details of this procedure shall be as agreed to between purchaser and supplier. A9991 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 wstm treat services.
If you feel that aztm comments have not received a fair hearing you should make your views known to the ASTM Committee on Standards, at the address shown below.
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. AMS Pyrometry3 3.