Specifications

55
Structurix Certied DENSTEP Structurix THIO-Test
The Structurix CERTIFIED DENSTEP is
a density step wedge film to verify
the calibration of optical
transmission densitometers used in
the industrial X-ray field.
Each Structurix CERTIFIED DENSTEP is:
• Packed in a light-tight waterproof
package which protects it against
moisture, dust, etc. guaranteeing a shelf
life of at least four years
• Provided with a calibration certicate
and a copy of the NIST certicate S.R.M.
1001
The density values reported, cross
referenced by serial number to the
certicate, are traceable to NIST (the
United States National Institute of
Standards and Technology)
through traceable calibrations of the
instrumentation and procedures in
accordance with our ISO 9001-2000
approved QA system.
Archivability check
The archivability of the processed lm is
evaluated by measuring the residual
thiosulphate in the emulsion layers. The
Structurix Thio-Test provides the means
for performing the control of xing and
washing as described in EN 584-2 and ISO
11699-2.
The Structurix Thio-Test kit consists of:
• the Thio-Test Color Stepwedge with four
steps, which relate to the archivability
expressed in number of years
• one dropper bottle of Thio-Test reagent,
of 35 ml (about 1,000 drops)
The Structurix Thio-Test also correlates
perfectly with other international
standards (ISO/ ANSI) for determining the
archival quality of industrial X-ray lm. It
is a quick and simple method to determine
the “life expectancy” of processed lms
and warns of poorly xed and/or
washed lms.