FZ/T 40011-2024 in English
VALIDWater requirement for silk reeling
- Issued on:2024-07-05
- Implemented on:2025-01-01
- File Format:PDF
- Delivery:Via email within 1~3 business days
$135.00
| Standard No: | FZ/T 40011-2024 |
| Document status: | VALID |
| Title in English: | Water requirement for silk reeling |
| Title in Chinese: | 制丝水质 |
| Language: | English |
| File Format: | Electronic (PDF) |
| Delivery: | Via email within 1~3 business days |
| Issued on: | 2024-07-05 |
| Implemented on: | 2025-01-01 |
| ICS Classification: | 59.080.01-Textiles in general |
| Chinese Classification: | W40-Silk and silk fabric in general |
| Professional Classification: | FZ-Textile |
| Related Keywords: | water requirement
water quality requirements water quality control silk industry chain silk strip |
Introduction
Standard Development Background and Technological Evolution
As a basic standard for the silk industry chain, FZ/T 40011-2024 systematically regulates the water quality requirements for the entire silk-making process for the first time. The standard was jointly formulated by the China National Textile and Apparel Council and 16 other units including Zhejiang Silk Technology Co., Ltd., reflecting the latest demand for water quality control in the current silk reeling process.
Comparative Analysis of Core Parameters
| Indicator Category | Recommended Value | Allowable Range | Risk of Exceeding the Standard |
|---|---|---|---|
| Conductivity | 200μS/cm | 50-1000μS/cm | Affects the Solubility of Sericin |
| Total Hardness | 0.9mmol/L | ≤2.25mmol/L | Causes the Silk Strip to Be Hard |
| CODMn | 3mg/L | ≤10mg/L | Breeding microorganisms |
Key testing technical specifications
Key points for transparency testing
Use 100cm graduated glass tube with special white porcelain pieces, requirements:
- Cross line width accurate to 1±0.02mm
- Observation angle maintained at 90° vertical
- Eliminate bubble interference
Multi-method selection principle
For sulfate detection, the following methods are allowed:
- GB/T 6911 spectrophotometry (conventional)
- HJ84 ion chromatography (precise)
Implementation recommendations
Water quality management cycle
It is recommended that enterprises establish a three-level testing system:
| Detection level | Frequency | Item |
|---|---|---|
| Online monitoring | Real-time | pH/conductivity |
| Workshop testing | Every shift | Transparency/temperature |
| Laboratory analysis | Weekly | Full indicators |
Abnormal handling process
When total iron exceeds the standard, it is recommended to:
- Immediately start the backup water source
- Check the corrosion of the pipeline
- Add food-grade chelating agent
Loading PDF document...
Error loading PDF. Please make sure the file is valid and try again.
We also recommend
-
FZ/T 07043-2025 in English
Calculation method and grade quota of comprehensive energy consumption for silk weaving enterprise
2025-04-10
