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该指南依据戈尔 ®(GORE®) 手持式电子设备防水防尘透气产品的水压测试方面的最佳实践经验制定。为尽可能减少因测试问题导致的漏水失效，进行水压测试时，请务必遵循该指南要求。

The guidelines are based on Gore’s best practices in eWEP (extended Water Entry Pressure) testing for GORE® Portable Electronic Vents. Please follow the guidelines to conduct the eWEP testing to minimize water leakage failures caused by test issues.

戈尔^®(GORE^®) 隔热膜具备厚度小(< 300 µm)、导热系数低于空气(< 0.02 W/(m•K)) 的独有特性，因此在特性分析方面存在挑战。采用改进的热流法、非原位厚度法和双厚度导热系数计算相结合的测试方法，可提供可靠而准确的导热系数数据。导热系数结果显示，数据分布低于0.02 W/(m•K) 的导热系数规范值。

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保护电子设备远离灰尘、液体和压力的设计挑战，在引入音响后变得更加困难。

GORE® Thermal Insulation has unique properties of low thickness (< 300 μm) with conductivity less than air (< 0.02 W/(m•K) ) and therefore presents challenges in characterization. A test methodology incorporating a modified heat flow method, ex-situ thickness method, and two thickness conductivity calculation is used to provide reliable and accurate thermal conductivity data. Conductivity results show the distribution of data falls below the conductivity specification of 0.02 W/(m•K).

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Rigorous testing shows how GORE® MEMS Protective Vents Style 200 reliably prevents particle contamination and pressure build-ups in MEMS microphones, and enables higher manufacturing yields and in-process acoustic testing in high-volume PCB (Printed Circuit Board) assembly operations.

A critical aspect of vent selection begins with defining the level of protection your application, device or housing requires.

IP ratings cannot be “converted” to NEMA ratings, since NEMA requires additional testing not included in IP. However, there are minimum NEMA ratings that will meet or exceed a given IP code.

Selecting the right acoustic vent for an electronic device requires a balance between the level of protection the vent supplies, and what the vent contributes to the overall sound performance of the acoustic system.

The challenge of designing electronic devices that stay protected from dust, liquids and pressure becomes increasingly difficult when acoustics are introduced.

选择防水防尘透气产品时，先确定应用、设备或外壳所需的防护等级非常关键。

由于NEMA需要进行IP中不包含的额外测试，因此IP防护等级无法“转换”为NEMA等级。但是，NEMA防护等级可满足或超出特定IP代码的要求。