6150: Sample Cup Leak Detector Paper Circles, 2.5" (63.5mm), 500/Pkg

Availability: In stock

The need for a convenient method to determine the chemical resistance of a thin-film sample support material to exposure to different liquid sample substances before analysis prompted the development of Chemical Resistance Test Paper.


Visual detection of leakage 

2.5" (63.5mm) diameter

Assess leak source

Convenience of use


500 /pkg 

Leak Detector Paper offers the analyst a visual method to assess sample cup leakage. The procedure is simply based on observing the appearance of a tell-tale stain on Leak Detector Paper from a fluid-filled sample cup. Leak detection is subject to the type of sample, its effect on the paper and time duration tests that could range from almost immediately to overnight. The most likely cause of sample cup leakage may be attributed to chemical attack of a thin-film substance by the sample, inadvertent improper attachment of a thin-film to the sample cup cell and poor design and manufacturing tolerance control of the sample cup components.

Selection of the most chemically resistant thin-film substance should be the first item to evaluate and test prior to usage in the instrument. The chemical resistance of typical thin-film window substances to different types of liquid samples is illustrated in the Thin-Film Resistance to Chemical Attack Table. Chemical sample classifications are categorically grouped and specific thin-film substances. Chemical resistance is listed simply as Excellent, Good, Fair, Not recommended or Unknown.

The manipulation of attaching a thin-film window to a sample cup is another factor influential to leak formation. Initial misalignment of the sleeve with the cell may create thin-film stretching, alter the tolerance and serve as foci for leakage. Attempts to reattach create unwanted wrinkles and are frequently futile.

® Etnom, Ultra-Polyester, Prolene, Zythene and Chemplex are registered trademarks of Chemplex Industries, Inc.

® Mylar and Kapton are registered trademarks of E.I. DuPont de Nemours & Co., Inc.

More Information

Typical Applications

Mineral Oil

Diesel Fuel

Synthetic Diesel Fuel 

Residual Oil

Waste Oil

Lubricating Oil


Organo Metallic Oil

Crude Oil

Light Oil



Metal Working Fluids

Motor Oil




And many other petrochemical liquids formulated with Aliphatic Hydrocarbons and specifically with Aromatic Hydrocarbons.

Write Your Own Review
You're reviewing:6150: Sample Cup Leak Detector Paper Circles, 2.5" (63.5mm), 500/Pkg
Your Rating