ASTM E155 PDF

Castings are a product form that often receive radiographic inspection since many of the defects produced by the casting process are volumetric in nature, and are thus relatively easy to detect with this method. These discontinuities of course, are related to casting process deficiencies, which, if properly understood, can lead to accurate accept-reject decisions as well as to suitable corrective measures. Since different types and sizes of defects have different effects of the performance of the casting, it is important that the radiographer is able to identify the type and size of the defects. ASTM E, Standard for Radiographs of castings has been produced to help the radiographer make a better assessment of the defects found in components.

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More E The illustrations are radiographs of castings that were produced under conditions designed to develop the discontinuities. The grouping and system of designations are based on considerations of the best practical means of making these reference radiographs of the greatest possible value. The extent to which the image deteriorates over time is a function of storage conditions, care in handling and amount of use.

Reference radiograph films are no exception and may exhibit a loss in image quality over time. The radiographs should therefore be periodically examined for signs of wear and tear, including scratches, abrasions, stains, and so forth.

Any reference radiographs which show signs of excessive wear and tear which could influence the interpretation and use of the radiographs should be replaced. Scope 1. The reference radiograph films are an adjunct to this document and must be purchased separately from ASTM International if needed. If performing digital radiography of aluminum-alloy castings, refer to Digital Reference Image Standard E If performing digital radiography of magnesium-alloy castings, refer to Digital Reference Image Standard E These changes could include changes in the films or processing chemicals used, changes in the dies or printing for the cardboard mats, etc.

Therefore, the adjunct reference radiographs remain valid for use with this standard regardless of the date of production or the revision level of the text standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered 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 to use.

The reference radiographs are not impacted by this revision. There have been no revisions to the adjunct reference radiographs since original issue. The adjunct reference radiographs of any issue remain valid and may be used to this standard. II: The set of reference radiographs consists of four plates covering discontinuities in magnesium-alloy castings only.

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E155-15 Standard Reference Radiographs for Inspection of Aluminum and Magnesium Castings.pdf

More E The illustrations are radiographs of castings that were produced under conditions designed to develop the discontinuities. The grouping and system of designations are based on considerations of the best practical means of making these reference radiographs of the greatest possible value. The extent to which the image deteriorates over time is a function of storage conditions, care in handling and amount of use. Reference radiograph films are no exception and may exhibit a loss in image quality over time. The radiographs should therefore be periodically examined for signs of wear and tear, including scratches, abrasions, stains, and so forth. Any reference radiographs which show signs of excessive wear and tear which could influence the interpretation and use of the radiographs should be replaced.

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More E Scope 1. The reference radiograph films are an adjunct to this document and must be purchased separately from ASTM International if needed. If performing digital radiography of aluminum-alloy castings, refer to Digital Reference Image Standard E If performing digital radiography of magnesium-alloy castings, refer to Digital Reference Image Standard E The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.

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