Document Overview
Key Findings The ETENWOLF S5 tire inflator recorded front-facing noise levels between 82.7 dB and 84.3 dB at 1 meter, evaluated as For Reference Only under the internal reliability test standard. Product: S5 Tire Inflator (充气泵) Report No.: 2025102501 Test Date: 2025-10-25 Samples: 3 PCS…
- Document type
- Certification Report
- Prepared by
- Daniel Wright
- Published
- Last reviewed
- Topics
- Noise Testing
Key Findings
The ETENWOLF S5 tire inflator recorded front-facing noise levels between 82.7 dB and 84.3 dB at 1 meter, evaluated as For Reference Only under the internal reliability test standard.
- Product: S5 Tire Inflator (充气泵)
- Report No.: 2025102501
- Test Date: 2025-10-25
- Samples: 3 PCS (units 7#, 8#, 9#)
- Test Type: Reliability Test — Noise
- Standard: Internal Standard (声压级 Lmax 35–100 dB)
- Noise Range: 82.7 dB – 84.3 dB (front face, 1 m distance)
- Verdict: For Reference Only (供参考)
Test Overview
| Field | Details |
|---|---|
| Test Type | Noise Testing (噪音测试) — Reliability Test |
| Test Standard | Internal Standard — Sound Pressure Level (Lmax 35–100 dB) |
| Report No. | 2025102501 |
| Test Date | 2025-10-25 |
| Product No. / Name | 充气泵 — ETENWOLF Zephyr S5 Tire Inflator |
| Model / Specification | S5 |
| Manufacturer | ETENWOLF |
| Sample Quantity / No. | 3 PCS |
| Test Environment | Room Temperature 23 °C, Relative Humidity 60% |
| Test Purpose | Evaluate the noise impact of the sample under different operating scenarios |
Test Equipment & Setup
| Item | Details |
|---|---|
| Test Equipment | Sound Level Meter (噪音计) |
| Microphone Placement | Horizontal distance of 1 m from the front face of the product |
| Product State During Test | Powered on and operating |
| Measurement Direction | Front face (正面) |
| Measurement Distance | 1 M |
| Acceptance Range | Sound Pressure Level Lmax 35–100 dB |
| Temperature | 23 °C |
| Humidity | 60% RH |
Test Procedure
- Pre-Test: Verify ambient temperature (23 °C) and humidity (60% RH) are within specified conditions.
- Pre-Test: Confirm the sound level meter is calibrated and positioned at a horizontal distance of 1 m from the front face of the unit under test.
- Pre-Test: Label samples as 7#, 8#, and 9#.
- Procedure: Power on the S5 tire inflator and allow it to reach normal operating state.
- Procedure: Position the microphone at 1 m horizontal distance from the front face of the product.
- Procedure: Record the peak noise level (dB) displayed on the sound level meter.
- Procedure: Repeat for all three samples (7#, 8#, 9#) under identical conditions.
- Post-Test: Power off the device and record all measured values.
- Post-Test: Compare results against acceptance criteria.
- Acceptance Criteria: Sound pressure level within Lmax 35–100 dB. Results classified as Pass (合格), Fail (不合格), or For Reference Only (供参考).
Test Data & Results
| Sample No. (编号) | Direction (方向) | Microphone Distance (距离麦克风距离) | Noise Level / dB (噪音) |
|---|---|---|---|
| 7# | Front (正面) | 1 M | 83.9 |
| 8# | Front (正面) | 1 M | 82.7 |
| 9# | Front (正面) | 1 M | 84.3 |
Observations: All three samples produced noise levels within the internal standard acceptance band of 35–100 dB. The spread across units is narrow (82.7–84.3 dB, a 1.6 dB range), indicating consistent acoustic output. The result was designated For Reference Only rather than a formal pass/fail verdict, consistent with the report’s evaluation classification (供参考). No anomalies or outliers were noted during testing.
Conclusion
| Parameter | Details |
|---|---|
| Result Range | 82.7 dB – 84.3 dB |
| Standard | Internal Standard — Sound Pressure Level Lmax 35–100 dB |
| Test Conditions | 23 °C, 60% RH; front face; 1 m microphone distance; product powered on |
| Samples Tested | 3 PCS (7#, 8#, 9#) |
| Verdict | For Reference Only (■ 供参考) |
Document Information
| Role | Name (Pinyin) | Date |
|---|---|---|
| Tested By (测试/日期) | Li Guanghua | 2025-10-25 |
| Checked By (审核/日期) | Zhang Ronggui | 2025-10-25 |
| Approved By (核准/日期) | Mai Shaoqiang | 2025-10-25 |
| Form / Source File | S5充气泵-噪音测试 2025.10.25.xlsx — Sheet: 噪音测试 | |
| Report No. | 2025102501 | |
Frequently Asked Questions
What noise level does the ETENWOLF S5 tire inflator produce during operation?
During standardized testing with the microphone placed 1 meter from the front face of the unit, the S5 recorded noise levels of 82.7 dB, 83.9 dB, and 84.3 dB across three sample units. This is typical for a compact, high-performance tire inflator operating at full load and falls well within the internal acceptance range of 35–100 dB.
What test standard was used for this noise evaluation?
The test was conducted against ETENWOLF’s internal standard, which evaluates the sound pressure level (Lmax) of the noise source within a range of 35–100 dB. This is a reliability-category test designed to characterize the product’s acoustic output rather than certify compliance with a third-party regulatory standard.
Why is the verdict listed as “For Reference Only” rather than Pass or Fail?
The report classification “For Reference Only” (供参考) indicates that this test was conducted to gather baseline acoustic data for engineering and product development purposes. It is not a mandatory certification requirement, so the result informs design decisions without constituting a formal pass/fail compliance verdict.
How was the test conducted and what equipment was used?
The S5 was powered on and operated normally. A sound level meter (噪音计) was placed at a horizontal distance of 1 meter directly in front of the product. Peak noise readings were captured for each of the three samples under controlled room conditions of 23 °C and 60% relative humidity.
Related Products
- ETENWOLF Zephyr S5 Tire Inflator — Product Page
- More test reports by Daniel Wright