Build & Test Prep

Table of Contents

1 Team Vision for Build & Test Prep Phase
2 Test Plan Summary
- 2.1 Instructions
3 Risk and Problem Tracking
4 Preliminary Testing
5 Design Review Materials
6 Plans for next phase

Team Vision for Build & Test Prep Phase

Summarize:

What did your team plan to do during this phase?
What did your team actually accomplish during this phase?

Test Plan Summary

Test Plan

Instructions

Ensure test plans are in place
Ensure that all applicable test standards have been cited (e.g., ASTM)
Ensure all ordered materials have been received
Ensure team has space and equipment necessary to begin building and testing

Risk and Problem Tracking

Risk Management

Preliminary Testing

Test: Ultrasonic Cleaning

Purpose: Determine the capability of an ultrasonic cleaner to clean the worst-case scenario (dried, stuck-on milk)

Materials:

Ultrasonic Cleaner HB-2818A (25kHz)

Bottle caps from breast pump kit (2)

Whole milk (1 Tbsp)

Hairdryer (optional)

Procedure:

Rinse the bottle caps with the milk and leave them uncovered to dry overnight. (NOTE: The humidity on the day of testing rehydrated the milk during transport, so a hair dryer was used to re-dry the milk.)

Photograph the caps before cleaning.

Fill the ultrasonic cleaner according to its instructions, with tap water.

Turn on the ultrasonic cleaner and submerge a cap in the water.

After a minute, remove the cap and document/photograph its state.

Repeat steps 4 and 5 for 10 minutes, or until no milk residue is left on the cap.

Repeat steps 2 through 6 with the other cap.

Results:

Small specks of milk remained on the caps after cleaning. These were simply removed by rinsing the caps under running water, or with a paper towel.

Conclusion:

A rinsing system is needed to adequately clean the parts. Also, updates to this test will be needed for it to be used to verify the final system, such as dying the milk to make it more visible and using actual breast milk instead of whole milk.