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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Calibration to such national standards shall be done at least once every two years.

Link to Active This link will always route to the current Active version of the standard. Interpretation of Results and Establishment of the Working Zone 9.

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. A superscript epsilon e indicates an editorial change since the last revision or reapproval. Examples of these surveying techniques are listed below. This standard is subject to revision at any time by the responsible technical committee and must be reviewed every? Use of representative material to simulate product during survey is permitted.

Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard. Within the text, the SI units are shown in brackets. Historical Version s – view previous versions of standard. In each test, determine the temperature variation pattern at one aatm more of the test locations. All other conditions described in 6. Your comments will receive careful consideration at a meeting of the responsible technical committee, which you may aa991.

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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.

The acceptance of any such additional requirements shall be dependent on negotiations with the supplier and must be included in aatm order as agreed upon by the purchaser and supplier. Heat Treatment in the Working Zone Details of this procedure shall be as agreed to between purchaser and supplier.

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. Furnace Survey Equipment 5.

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.

Current edition approved Oct. 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.

ASTM A991/A991M – 17

It provides validation of temperature uniformity by a series of tests rather than a single test. Combining values from the two systems may result in non-conformance with the standard. Individual reprints single or multiple copies of this standard may be obtained by contacting ASTM at the above address or at phonefaxor service astm. Your comments are invited asm for revision of this standard or for additional standards and should be addressed to ASTM International Headquarters.

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Survey documentation requirements, and the procedure used to subsequently establish the furnace working zone, are defined in this test method. Place them at the outer extremities, the center of the proposed working zone, and in areas of suspected variability in the proposed working zone.

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

For proposed working zones greater than, or equal to, 12 in. AMS Pyrometry3 3.

Documentation of Survey Results 8. 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.

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. Results of the application of this test method shall be expressed as a variation from a temperature set point.