ASTM A991 PDF

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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Documentation of Survey Results 8. Survey documentation requirements, and the procedure used to subsequently establish the furnace working zone, are de? Originally approved in 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.

Attach survey test sensors to, or set them in the load. Heat Treatment in the Working Zone a91 Details of this procedure shall be as agreed to between purchaser and supplier.

Examples of these surveying techniques are listed below. 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. A number in parentheses indicates the year of last reapproval. 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.

Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard. A major furnace modi? It provides validation of temperature uniformity by a series of tests rather than a single test.

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If aastm feel that your comments have not received a fair hearing you should asstm your views known to the ASTM Committee on Standards, at the address shown below. Survey documentation requirements, and the procedure used to subsequently establish the furnace working zone, are defined in this test method.

Your comments will receive careful consideration at a meeting of the responsible technical committee, which you may attend. For proposed working zones greater than, or equal to, 12 in. Link to Active This link will always route to the current Active version a9991 the standard. Results of the application of this test method asrm be expressed as a variation from a temperature aatm point.

All other conditions described in 6. Starting time and chart speed shall be marked on the original temperature charts, 8. Regardless of heat treat furnace type, or processing cycle, it may be necessary for users to know the temperature uniformity in the adtm and whether the material is processed in a zone within the furnace that is capable of meeting the applicable permissible temperature variation requirements.

Current edition approved Oct. This standard is subject to revision at asym time by the responsible technical committee and must be reviewed every? Combining values from the two systems may result in non-conformance with the standard.

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

Your comments are invited either for revision of this standard or for additional standards and should be addressed to ASTM International Headquarters. 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. In each test, determine the temperature variation pattern at one or more of the test locations. The rate of conveyance shall be representative of normal operating conditions. This method is used to determine the capability of the furnace to meet the permissible temperature variation speci?

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The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other.

ASTM A991/A991M – 17

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. The working zone may be comprised of one or more heating zones in the furnace. Within the text, the SI units are shown in brackets.

A superscript epsilon e indicates an editorial change since the last revision or reapproval. Place them at the outer extremities, the center of the proposed working zone, and in areas of suspected variability in the proposed working zone. 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.

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.

Use of representative material to simulate product during survey is permitted.

Interpretation of Results and Establishment of the Working Zone 9. Historical Version s – view previous versions of standard.