RRE3168

    Reference Radiographs for Determining Low-Contrast Visual Acuity of Radiographic Interpreters + Active Standard E3168


      Format   Price  
    Film   $496 CONTACT CUSTOMER SERVICE

    In light of COVID-19 (coronavirus) and safety concerns for our review team, production of this Reference Radiograph will be delayed. Please contact ASTM Customer Service, +1.877.909.2786, to discuss the timing for availability.

    Reference Radiographs are nondestructive testing standards universally accepted because of their high reliability in accept-reject actions.

    These reference radiographs consist of five individual plates, each containing a series of radiographic images of 0.5 in. (12.7 mm) long slits in thin metal shims. The original radiographs used to prepare the illustrations were generated using various absorbers, geometric parameters (unsharpness, slit widths), and source parameters (kV, mA, time) to produce images of varying noise, contrast, and sharpness. Each radiographic image has a background density of 1.8 ± 0.15.

    Each visual acuity test plate consists of 25 individual image areas. The images are arranged in five rows and five columns. Each image area is 2 in. x 2 in. (51 mm x 51 mm). All identification is on the back side of the plate. Each plate can be viewed from any of the four orientations (that is, it can be viewed with any of the four edges “up” on the illuminator). Since there are five different plates in the set, this makes for a total of 20 different patterns that can be viewed. The identification of which of the five plates and which of the four orientations was viewed in any given test can be determined from the designation on the back side.

    A copy of the current ASTM standard is included with the purchase of these reference radiographs.

    To order, contact Customer Service or call +1.877.909.2786.


    Stock #: RRE3168

    RRE3168-C01 RRE3168-C02 RRE3168-C03 RRE3168-C04 RRE3168-C05 RRE3168-C06 RRE3168-C07 RRE3168-F01 RRE3168-F02 RRE3168-R01 RRE3168-R02 RRE3168-R03 RRE3168-SN