Reactor with insert suitable with the Oddy test
// Chemical Analysis // Chemistry // Sensors and Measuring Instruments
Ref-Nr: 16744
Abstract
The Oddy test is currently used by numerous museums, collections and archives due to its relatively simple application and low cost to effectively prevent property damage in the storage and exhibition area. The invention relates to a method and a use of an insert for a reactor for the detection of emerging from a substance sample gaseous substances. The invention is particularly suitable in conjunction with the Oddy test.
Fig. 1: Device according to the invention: Reactor (2) with insert (1), indicator material (13), fabric sample (12) and the screw cap (11) used with sealing section (3), holder for indicator material (4) , Connecting bar (6), Pufferring (10), activated carbon ad-sorber (14), glass nozzle (15), O-rings (18), handle portion (19), bottom (22).
background
Using a test tube as reactor and metal indicators made of strips of silver, lead and copper, samples of the material to be examined are placed in a heating cabinet at 60 °C for a period of 28 days with the addition of water in the test tube. Chemical reactions of the ingredients of a material sample with the indicator metals allow conclusions to be drawn about the damage potential of a material for certain other materials.
Innovation / Solution
The test kit according to the invention comprises a reactor, prefabricated indicator plates made of metal foils or platelets of glass or ceramic coated with indicator metal, an image acquisition station and software for evaluating the results. The glass container is characterized on the one hand by technical design features such as the two-part construction of a glass sleeve and an inner insert with a highly efficient seal and the use of inert materials and on the other by the design (see Fig.1 ).Benefits
Standardization of the Oddy Test with a uniform reactor
Use industrially prefabricated indicator platelets
Reproducibility and comparability of results
Objective evaluation by image analysis software
fields of application
The invention may find application in the preventive conservation of artistic and cultural property, e.g. when reviewing materials, etc. for the construction of showcases, cabinets etc. or also packaging materials for museum objects by means of an indicate test.You can close this window. You can find your search results in the previous window
