Patent · US Active

Calibrated permeation standards

US9823177B2 · kind B2 · utility

1Cited by
4References
26Claims
0Family size

Assignee

Inventors

Key dates

Filing dateFeb 27, 2015
Grant dateNov 21, 2017
Priority date
Expiry dateJan 3, 2036

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG01N15/0826
  • WIPO fieldMeasurement
  • WIPO sectorInstruments

Abstract

A permeation standard is provided. The permeation standard may include a substrate that is impermeable to an analyte, an orifice disposed in the substrate, and a permeable material filling the orifice. The orifice and the permeable material are configured to provide a predetermined transmission rate of the analyte through the permeation standard. Also provided herein are methods for forming the permeation standard.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.