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Wetting-Test Temperature: Record the Specimen Condition, Not Only the Room Setting
A room setpoint does not automatically establish the temperature of a specimen brought from another environment. Record the conditioning method relevant to the wetting test before comparing samples.
Updated · NANOLAB Knowledge
The key distinction
The laboratory should define how the liquid and specimen reach the required conditions. A recent transfer or local heat source can create a difference that the room display does not capture. Keep those events in the record.
Practical checks
- Follow the agreed conditioning procedure.
- Identify the relevant temperature measurement and timing.
- Record deviations or recent sample transfers.
Example
Illustrative example: one panel is tested shortly after arriving from a cold store while another has remained in the laboratory. A shared room-temperature entry does not prove equivalent specimen conditions.
Scope and limits
Do not invent a universal conditioning duration or apply heat to accelerate readiness. Use the laboratory's method and the coating's approved sample-preparation requirements.
Related guidance
- Coating Test Liquids: Record Purity and Handling
- Factorial Coating Trials: Test Temperature and Humidity Together
- Coating Test Reports with Photographs: Match Every Image to a Specimen and Stage
- Droplet Test Sequences: Do Not Reuse a Wetted Location Without a Defined Method
Ask NANOLAB about the exact product and intended use. Use the current product documentation for formulation-specific instructions.
Continue reading
Coating Test Liquids: Record Purity and Handling
The liquid used in a wetting test is part of the test system. Contaminated water or reused dispensing equipment can undermine a comparison.
Factorial Coating Trials: Test Temperature and Humidity Together
Plan a small factorial coating study to examine temperature and humidity together within approved conditions and an appropriate test design.
Coating Test Reports with Photographs: Match Every Image to a Specimen and Stage
A photograph in a test report should identify the specimen and the stage it represents. An unlabeled image can be visually persuasive while remaining difficult to connect to the reported result.