B e n c h m a r k
B e n c h m a r k
The fabrics that we are selling are indicated in pale green by their product number (e.g. 75-001 ). If there is no product number following a sample, we were not happy enough with that sample's test results to sell it.
Oddy Test Results for samples of eight Linen Fabrics as follows:
TEST PROCEDURE: Oddy
An Oddy style test was conducted on six samples of linen fabrics. The test procedure was as follows: Each sample was enclosed in a glass vial with blanks of polished lead, silver land copper. Half of each sample was placed beneath the blanks so that the area of direct contact as well as volatile contaminates could be assessed. Moist cotton was placed in each vial, which was then sealed and exposed to 60oC for 35 days. A control vial was prepared in the same manner and exposed to the same conditions.
| DAY | SAMPLE DESCRIPTION | OBSERVATION | |
| 1-35 | Sample 1 | 75-001 | No change in test blanks. |
| 1-35 | Sample 2 | 75-002 | No change in test blanks. |
| 1-35 | Sample 3 | Very minor white deposits on one edge. | |
| 1-35 | Sample 4 | 75-003 | Darkening of lead blank. |
| 1-35 | Sample 5 | 75-004 | Darkening of lead blank. |
| 1-35 | Sample 6 | 75-005 | No change in test blanks. |
| 1-35 | Control | No change in test blanks. |
INTERPRETATION OF RESULTS
None of the samples showed significant effect on the test blanks. The lead blank exposed to sample number 3 showed the most change. A small amount of white powdery material was noticed on one edge touching the sample. This was noticed under magnification, at the end of the test period. The material should probably not be used in contact with objects unless tested more extensively.
A dark surface formed on the lead blanks exposed to samples 4 and 5. The layer was even and may be protective. The change did not cause the samples to fail the Oddy test.
TEST-PROCEDURE: Oddy
An Oddy test was conducted on two samples of linen fabrics. The test procedure was as follows. The sample of each fabric was enclosed in a separate glass vial with blanks of polished lead, silver and copper. Half of each sample was placed beneath the blanks so that the affect of direct contact as well as volatile contaminates could be assessed. Moist cotton was placed in each test vial, which was then sealed and exposed to 55oC for 42 days.
A control vial was prepared in the same manner, without any sample, and exposed to the same conditions.
| DAY | SAMPLE NUMBER | OBSERVATION | |
| 1-42 | Sample 1 | 75-006 | No change in test blanks. |
| 1-42 | Sample 2 | 75-007 | No change in test blanks. |
| 1-42 | Control | No change in test blanks. |
INTERPRETATION OF RESULTS
Neither of the linen fabrics caused any observable change to - or corrosion of - the metal blanks
Requested by Benchmark, Rosemont, N.J. 08556