The Decision
Option C: Reject the latex batch.
It is because the latex fails to meet several ISO requirements, which will lead to
production problems and affect the quality of the product.
Explanation
1. Which latex properties are problematic?
DRC: The result is 58.2%, which is not ≥ 60% requirement.
VFA No.: The result is 0.28, which is not ≤ 0.20 requirement.
MST: The result is 480 seconds, which is not ≥ 630 seconds requirement.
2. How will they affect glove manufacturing?
Low DRC: It leads to a thinner deposit on the formers, directly causing the
expected poor film strength.
High VFA No.: The latex became thicker than normal and caused dipping
instability.
Low MST: The foam formed during mixing and the uneven thickness seen on the
dipped films.
3. What action should the factory take?
The factory should reject the latex batch. Minor deviations in DRC might be
manageable by adjusting processing conditions, but the combination of high VFA and
low MST indicates highly unstable latex that will cause increased of glove rejection rate.