Re: [MW:18862] Film Density check

as per ASME SEC V , WELD +HAZ SHALL BE DENSITY LIMIT AS FOLLOW

T-282.2 Density Variation

(a) General.

If the density of the radiograph anywhere through the area of interest varies by more than minus 15% or plus 30% from the density through the body of the hole IQI or adjacent to the designated wire of a wire IQI, within the minimum/maximum allowable density ranges specified in T-282.1, then an additional IQI shall be used for each exceptional area or areas and the radiograph retaken.

When calculating the allowable variation in density, the calculation may be rounded to the nearest 0.1 within the range specified in T-282.1.

(b) With Shims.

When shims are used with hole-type IQIs, the plus 30% density restriction of (a) above may be exceeded, and the minimum density requirements of T-282.1 do not apply for the IQI, provided the required IQI sensitivity of T-283.1 is met.

Regards,

Bhaskar Kale

On Mon, Oct 7, 2013 at 11:11 AM, Richard robes <mech.processes@gmail.com> wrote:

While doing film interpretation, which all area need to be checked for density with densitometer? spec says 1.8 to 3.5, is it only for weld area or also for entire area of film?

please clarify

Riuchard

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