GB/T 13786-2022 in English
VALIDArtificial daylighting illumination for cotton classing rooms
- Issued on:2022-10-12
- Implemented on:2023-05-01
- File Format:PDF
- Delivery:Within 1 day
$125.00
| Standard No: | GB/T 13786-2022 |
| Document status: | VALID |
| Title in English: | Artificial daylighting illumination for cotton classing rooms |
| Title in Chinese: | 棉花分级室的模拟昼光照明 |
| Language: | English |
| File Format: | Electronic (PDF) |
| Delivery: | Within 1 day |
| Issued on: | 2022-10-12 |
| Implemented on: | 2023-05-01 |
| Superseding: |
GB/T 13786-1992 daylighting illumination for cotton classing rooms
|
| ICS Classification: | 59.060.10-Natural fibres |
| Chinese Classification: | W10-Cotton textile in general |
| Professional Classification: | GB-National Standard |
| Related Topics: | cotton
illumination simulation laboratory Chamber mold lighting Secondary analysis room lighting light mock english spectral lighting Irradiance Simulation First order light Zero order light lighting Day ant Indoor lighting analysis Investigate day and night simulated in english GB13786-2022 GBT13786 GB/T 13786-1992 GBT 13786-2022 simulation Cotton grading room requirements Cotton sugar content classification Cotton grading room illumination gb/t 13786-2022 |
《GB/T 13786-2022棉花分级室的模拟昼光照明》由TC513（全国纤维标准化技术委员会）归口，主管部门为国家标准化管理委员会。
Introduction
Standard Revision and Technological Evolution
| Functional Section | GB/T 13786-1992 | GB/T 13786-2022 | Significance of Upgrade |
|---|---|---|---|
| Core Equipment Requirements | Only specifies the installation method of lamps | Added spectrally neutral diffuse reflective glass material specifications and spectrum matching requirements | Ensure that the lighting spectrum curve coincides with the D75 standard ‚â•98% |
| Colorimetric Value Control | No clear quantitative indicators | Correlated color temperature (7500±200)K/ Color rendering index Ra≥92 | Achieve color evaluation accuracy improved to the international grading system standard |
Graded space lighting configuration specifications
4.1 Spectral matching requirements
The lighting unit should be equipped with a spectrally neutral diffuse reflection glass filter system to ensure that the output energy distribution is reasonably matched with the characteristic curve in Appendix A
Key parameters:Relative energy in the 450nm band ≤135lx, error range of 20lx in the 550nm band
Quality control and maintenance rules
Equipment failure warning case: In actual detection, when spectral illuminance meter detects that the color temperature fluctuation exceeds 50K, the light source spectrum should be calibrated or replaced in time.
The specification requires that the maintenance file shall include at least:
- Daily timed illuminance value records
- Weekly routine spectral bandwidth measurement data
- Calibration verification spot check report
Graded environmental element control
| Environmental surface | Brightness requirement | Hue difference‚ñ≥E |
|---|---|---|
| Wall | ‚â•N9.0 | ùõø‚â§1.5 |
| Graded countertops | Black limit | Supplementary provisions of the General Administration of Customs ΔL≤2.0 |
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