The Sandwich Method—A Proposed Approach to the Measurement of Oxygen Transmission Rate Through Moisture Sensitive Barrier Films

Volume 12, Issue 3 (May 1984)

Click here to download this paper now for $25 PDF (92K)

View License Agreement

ISSN: 1945-7553
CODEN: JTEVAB
Page Count: 3

The Sandwich Method—A Proposed Approach to the Measurement of Oxygen Transmission Rate Through Moisture-Sensitive Barrier Films

Wood, RC
Vice president, technical specialistMember of ASTM, Modern Controls, Inc., Minneapolis, MN

Abstract

A technique for measuring the oxygen transmission rate characteristics of moisture-sensitive barrier films is described. In this method, the operator constructs a thin sandwich in which the test specimen is confined between moist tissues and cover slips of an oxygen-transparent material. The assembled “sandwich” is tested in a conventional manner using the ASTM Test for Oxygen Gas Transmission Rate Through Plastic Film and Sheeting Using a Coulometric Sensor (D 3985). Using appropriate salt solutions, it has been found possible to develop profiles and measure the transmission characteristics of films exposed to different humidity environments. Preliminary tests using specimen duplicates indicate that the method is reproducible.

Keywords:
films, permeability, transmission rate, oxygen, testing, sandwich method, salt solutions

Paper ID: JTE11065J
DOI: 10.1520/JTE11065J
ASTM International is a member of CrossRef.

Author Title The Sandwich Method—A Proposed Approach to the Measurement of Oxygen Transmission Rate Through Moisture-Sensitive Barrier Films Symposium , 0000-00-00 Committee D20

		SEDL / Journals / Journal of Testing and Evaluation (JTE) / Citation Page Volume 12, Issue 3 (May 1984) Click here to download this paper now for $25 PDF (92K) View License Agreement ISSN: 1945-7553 CODEN: JTEVAB Page Count: 3 The Sandwich Method—A Proposed Approach to the Measurement of Oxygen Transmission Rate Through Moisture-Sensitive Barrier Films Wood, RC Vice president, technical specialistMember of ASTM, Modern Controls, Inc., Minneapolis, MN Abstract A technique for measuring the oxygen transmission rate characteristics of moisture-sensitive barrier films is described. In this method, the operator constructs a thin sandwich in which the test specimen is confined between moist tissues and cover slips of an oxygen-transparent material. The assembled “sandwich” is tested in a conventional manner using the ASTM Test for Oxygen Gas Transmission Rate Through Plastic Film and Sheeting Using a Coulometric Sensor (D 3985). Using appropriate salt solutions, it has been found possible to develop profiles and measure the transmission characteristics of films exposed to different humidity environments. Preliminary tests using specimen duplicates indicate that the method is reproducible. Keywords: films, permeability, transmission rate, oxygen, testing, sandwich method, salt solutions Paper ID: JTE11065J DOI: 10.1520/JTE11065J ASTM International is a member of CrossRef. Author Title The Sandwich Method—A Proposed Approach to the Measurement of Oxygen Transmission Rate Through Moisture-Sensitive Barrier Films Symposium , 0000-00-00 Committee D20