Document Overview
Key Findings All three ETENWOLF S0 portable bike pump samples were measured at 1 m front-face distance under standard indoor conditions; results are classified For Reference Only against the internal acceptance range of 35–100 dB. Product: ETENWOLF S0 Portable Bike Pump Report No.: 2025080401 Test…
- Document type
- Test Report
- Prepared by
- Daniel Wright
- Published
- Last reviewed
- Topics
- Noise Testing
Key Findings
All three ETENWOLF S0 portable bike pump samples were measured at 1 m front-face distance under standard indoor conditions; results are classified For Reference Only against the internal acceptance range of 35–100 dB.
- Product: ETENWOLF S0 Portable Bike Pump
- Report No.: 2025080401
- Test Date: 2025-08-04
- Samples: 3 PCS
- Test Standard: Internal Standard — Sound Pressure Level Lmax 35–100 dB
- Measurement Distance: 1 m (microphone horizontal, front-face)
- Results: 83.2 dB / 81.7 dB / 79.1 dB
- Verdict: For Reference Only (供参考)
Test Overview
| Field | Detail |
|---|---|
| Test Type | Noise Testing |
| Test Category | Reliability Test (可靠性测试) |
| Report No. | 2025080401 |
| Test Date | 2025-08-04 |
| Product No. / Name | ETENWOLF S0 Portable Bike Pump (充气泵) |
| Model / Type Specification | S0 |
| Sample Quantity / No. | 3 PCS |
| Test Standard | Internal Standard |
| Test Purpose | Evaluate the noise level of the sample under different operating scenarios |
| Acceptance Criterion | Sound pressure level Lmax 35–100 dB |
| Test Conditions | Room Temperature: 23 °C, Relative Humidity: 60 % |
Test Equipment & Setup
| Item | Detail |
|---|---|
| Test Equipment | Sound Level Meter (噪音计) |
| Measurement Point | Front face of product (正面) |
| Microphone Distance | 1 m (horizontal, aligned with product front face) |
| Product State During Test | Powered on and operating (开机状态) |
| Ambient Temperature | 23 °C |
| Relative Humidity | 60 % |
Test Procedure
- Pre-test: Confirm ambient conditions — room temperature 23 °C, relative humidity 60 %. Verify sound level meter calibration.
- Sample preparation: Label three S0 units as 1#, 2#, and 3#. Place each sample on a stable, flat surface in the test area.
- Microphone positioning: Position the sound level meter microphone at a horizontal distance of 1 m from the front face of the product, at the same height as the product’s primary acoustic emission surface.
- Measurement: Power on the product. Record the maximum sound pressure level (Lmax) displayed by the noise meter during normal operation.
- Repeat: Perform the same measurement procedure for samples 2# and 3#.
- Post-test: Power off all samples. Record all measured values and compare against the acceptance criterion of Lmax 35–100 dB.
Acceptance Criterion: Sound pressure level Lmax within 35–100 dB. Results in this report are classified 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) |
|---|---|---|---|
| 1# | Front (正面) | 1 m | 83.2 |
| 2# | Front (正面) | 1 m | 81.7 |
| 3# | Front (正面) | 1 m | 79.1 |
Observations: All three samples produced sound pressure levels within the internal evaluation range of 35–100 dB. Sample 1# recorded the highest level at 83.2 dB and Sample 3# the lowest at 79.1 dB, giving a spread of 4.1 dB across the batch. No anomalous noise events were noted during testing. Results are designated For Reference Only and do not constitute a pass/fail determination.
Conclusion
| Field | Detail |
|---|---|
| Result — Sample 1# | 83.2 dB |
| Result — Sample 2# | 81.7 dB |
| Result — Sample 3# | 79.1 dB |
| Acceptance Standard | Internal Standard, Lmax 35–100 dB |
| Test Conditions | 23 °C, 60 % RH; microphone at 1 m front-face |
| Samples Tested | 3 PCS (1#, 2#, 3#) |
| Verdict | For Reference Only (供参考) |
Document Information
| Role | Name (Pinyin) | Date |
|---|---|---|
| Tested By (测试/日期) | Li Guanghua | 2025-08-04 |
| Checked By (审核/日期) | Zhang Ronggui | 2025-08-04 |
| Approved By (核准/日期) | Mai Shaoqiang | 2025-08-04 |
| Field | Detail |
|---|---|
| Source File | S0 充气泵-噪音测试 2025.8.4.xlsx |
| Sheet Name | 噪音测试 |
| Report No. | 2025080401 |
Frequently Asked Questions
How loud is the ETENWOLF S0 portable bike pump during operation?
In controlled testing at 1 m front-face distance, the three S0 samples measured 83.2 dB, 81.7 dB, and 79.1 dB respectively. This places the pump in a typical range for compact electric inflators. The results are classified for reference only under ETENWOLF’s internal evaluation standard.
What test standard was used for the S0 noise test?
ETENWOLF used an internal reliability test standard that evaluates maximum sound pressure level (Lmax) within a range of 35–100 dB. The microphone was positioned at a horizontal distance of 1 m from the front face of the product while it was powered on and operating.
How many samples were tested and what were the individual readings?
Three production samples were tested. Sample 1# recorded 83.2 dB, Sample 2# recorded 81.7 dB, and Sample 3# recorded 79.1 dB, all measured at 1 m from the front face under 23 °C and 60 % relative humidity conditions.
What does ‘For Reference Only’ mean in the ETENWOLF S0 noise report?
‘For Reference Only’ (供参考) means the test results are recorded as informational data and are not subject to a formal pass/fail judgment at this stage. The readings fall within the internal evaluation window of 35–100 dB and serve as a baseline for product development and quality monitoring.