Description

ChemFilm^TM  is much more reactive, accurate and durable than any other paper sensing tape ever made.

ChemFilm^TM lead acetate-impregnated sensing tape is a highly evolved innovation of the original tape used in the long-standing, industry standard, ASTM approved method for detecting and measuring Hydrogen Sulfide (H2S) in natural gas.

7 year shelf life when unopened and stored in a cool, dry place.

* ChemFilm^TM should be used within 45 days of breaking sealed package.