Evaluation of the Properties of Corrosion Inhibition for a Sample of Multipack film.
Background:
Ugo Spada with Carte Dozio, requested evaluation of corrosion inhibition properties for Multipack film.Purpose: To evaluate the film from Multipack, and compare results with Cortecs VpCI-126.
Method: Razor Blade Test
VIA Test
SO2 Test
FT-IR
Nitrite Test
Materials: Razor Blade Test Kit
VIA Test Kit
SO2 Test Kit
Paragon 1000 FT-IR, Perkin Elmer
EM Quant Nitrite Test Strips, EM Ind., Gibbstown, NJ
(charge/lot # 90397041 Sep 02)
Procedure: The above tests were performed according to standard procedures for each.
Results:
Razor Blade Test
Materials |
Panel #1 |
Panel#2 |
Panel#3 |
Multipack film |
Fail |
Fail |
Fail |
Cortec VpCI-126 film* |
Pass |
Pass |
Pass |
Control |
Fail |
Fail |
Fail |
* Typical results for VpCI-126 film.
VIA Test
Materials |
Panel #1 |
Panel#2 |
Panel#3 |
Multipack film |
Grade 0 |
Grade 0 |
Grade 1 |
Cortec VpCI-126 film* |
Grade 3 |
Grade 3 |
Grade 3 |
Control |
Fail |
Fail |
Fail |
* Typical results for VpCI-126 film.
SO2 Test
Materials |
Panel #1 |
Panel#2 |
Panel#3 |
Multipack film |
Grade 1 |
Grade 2 |
N.A.** |
Cortec VpCI-126 film* |
Grade 4 |
Grade 4 |
Grade 4 |
Control |
Fail |
Fail |
Fail |
* Typical results for VpCI-126 film.
** Not sufficient amount of film for third trial.
FT-IR: See attached results.
Nitrite Test: Multipack film tested negative for nitrite presence.
VIA Test Grades (Grade 2 or 3 are passing)
|
|
SO2 Grades (Grade 3 and 4 are passing):
Grade 0- Extensive corrosion covering 25% or more of panel surface
Grade 1- Moderate corrosion covering 10-25% of panel surface
Grade 2- Slight corrosion covering 5-10% of panel surface
Grade 3- Very slight corrosion covering 0-5% of panel surface
Grade 4- No visible corrosion on panel surface
Conclusion:
1. Based on FT-IR results Multipack film contains sodium benzoate.
Project #: 02-243-1125
Estimated Cost of Project: 6 hrs
To: Ugo Spada
From: Greg Hocking
Date: Nov 14th 2002
cc: Boris Miksic
Anna Vignetti
Art Ahlbrecht
Cliff Cracauer
Vanessa Schultz
Bob Boyle
Dario DellOrto