Questions about MIL-STD-810G medium and high temperature testing on Surface Book 3

Please note that this is the Chinese Q&A Forum, any content should be posted in Chinese. However, I will still provide an answer on English based on your initial response.

Hello li min, welcome to Microsoft Q&A forum.

Surface Book 3 has been tested for durability and reliability under the MIL‑STD‑810G standard. This certification confirms that the device has undergone environmental stress tests, including high‑temperature conditions, as part of Microsoft’s quality assurance process.

However, Microsoft does not publish the exact environmental parameters (such as temperature set points, humidity levels, or duration) used during these internal tests for individual Surface devices. These details are considered proprietary.

For reference, the MIL‑STD‑810G standard itself defines typical ranges for high‑temperature testing under Method 501.5:

• Storage (Procedure I): Exposure to elevated temperatures, commonly up to +60 °C (140 °F) or higher for a specified duration (e.g., 24 hours).
• Operation (Procedure II): Functional testing at elevated temperatures, often up to +49 °C (120 °F) under normal operating conditions. Extended storage ranges in the standard can reach +63 °C to +71 °C depending on the tailored test profile.

If you need the full details of the MIL‑STD‑810G standard, it is publicly available through the U.S. Department of Defense documentation.