GB/T 45040-2024 in English
VALIDBedding—Test method for air permeability of latex products
- Issued on:2024-12-31
- Implemented on:2025-07-01
- File Format:PDF
- Delivery:Via email within 1~3 business days
$204.00
| Standard No: | GB/T 45040-2024 |
| Document status: | VALID |
| Title in English: | Bedding—Test method for air permeability of latex products |
| Title in Chinese: | 床上用品 乳胶制品透气性试验方法 |
| Language: | English |
| File Format: | Electronic (PDF) |
| Delivery: | Via email within 1~3 business days |
| Issued on: | 2024-12-31 |
| Implemented on: | 2025-07-01 |
| ICS Classification: | 59.080-Products of the textile industry |
| Chinese Classification: | W55-Textile articles in general |
| Professional Classification: | GB-National Standard |
| Related Keywords: | latex bedding products
latex products air permeability test method latex products breathability determination air permeability test methods |
| Related Topics: | bed linings
|
《GB/T 45040-2024床上用品 乳胶制品透气性试验方法》由TC302（全国家用纺织品标准化技术委员会）归口，TC302SC1（全国家用纺织品标准化技术委员会床上用品分会）执行，主管部门为中国纺织工业联合会。
Introduction
In-depth interpretation of the standard for air permeability test methods for latex bedding products
1. Standard overview
This standard (GB/T 45040-2024) specifies in detail the air permeability test method for latex bedding products, and is applicable to the testing of latex pillows, latex pads and other products. Other porous elastic polymer bedding products can refer to this standard.
2. Comparison of core clauses
| Dimensions | GB/T 45040—2024 | Reference standards (such as GB/T 5453) | Difference analysis |
|---|---|---|---|
| Scope | Breathability test of latex products | Breathability determination of textile fabrics | Focus on latex products and expand to polymer elastic products |
| Test conditions | Preload value 1.0 kPa, pressure drop 200 Pa | Standard atmospheric conditions | Add preload and pressure drop adjustment options |
| Result processing | Calculation of air permeability R (mm/s) | Direct measurement of air flow | Introduction of conversion factor 167 |
Case study: instrument calibration and air leakage treatment
Ensure the accuracy of the test instrument through the calibration orifice self-check steps in Appendix A. For air leakage problems, it is recommended to use gaskets or multi-pass sealing measures to solve them, and record abnormal conditions in detail in the report.
3. Technical Requirements Analysis
- Specimen pressing plate: 300mm×300mm metal material, with a 100cm² circular hole in the center
- Test bench: vent holes of the same size, formula hole metal wire support mesh (side length 16mm, diameter ø1.6mm)
- Differential pressure gauge and flow meter: both with Class 1.0 accuracy
- Vacuum pump: adjustable 50-500Pa pressure drop
4. Implementation Suggestions
- Manufacturer: Establish an internal testing laboratory, equip with professional instruments, and calibrate them regularly.
- Testing agencies: formulate a unified testing process to ensure data accuracy and comparability.
- Consumers: pay attention to breathability performance parameters and choose products that meet the standards.
Loading PDF document...
Error loading PDF. Please make sure the file is valid and try again.
