GB/T 16576-2010 in English
VALIDPlastics - Trihydroxy polyether polyols
- Issued on:2010-09-26
- Implemented on:2011-08-01
- File Format:PDF
- Delivery:Via email within 1~3 business days
$136.00
《GB/T 16576-2010塑料 三羟基聚醚多元醇》由TC15（全国塑料标准化技术委员会）归口，TC15SC8（全国塑料标准化技术委员会聚氨酯塑料分会）执行，主管部门为中国石油和化学工业联合会。
Introduction
1. Background and significance of the standard
GB/T16576—2010 "Plastic Trihydroxy Polyether Polyols" is a national standard for the technical requirements and testing methods of trihydroxy polyether polyols used in the production of polyurethane materials. This standard was issued in 2010 and replaced the previous GB/T16576—1996 version, aiming to further improve product quality and technical requirements and meet the needs of industry development.
2. Comparison of standard frameworks
| Standard dimensions | Requirements of the 1996 version | Improvements of the 2010 version |
|---|---|---|
| Scope and content | Basically covers the definition and application areas of trihydroxy polyether polyols | Explicitly adds products such as 330H and 360H, expanding the application scenarios |
| Technical requirements | Mainly for the detection of hydroxyl value and acid value | Added the determination methods of sodium, potassium content and unsaturation |
| Sampling plan | Uses simple random sampling method | Introduction of scientific sampling method of GB/T6678-2003 |
3. Detailed explanation of technical requirements
Technical requirements for trihydroxy polyether polyols mainly cover multiple indicators such as appearance, chromaticity, hydroxyl value, acid value, etc. The following is a comparison of the technical parameters of several representative products:
| Specification model | Grade classification | Chroma (Hetzeng unit) | Hydroxy value (mg/g) | Acid value (mg/g) |
|---|---|---|---|---|
| 330 | Superior/Qualified product | 50/100 | 54.5～57.5/54.0～58.0 | 0.05/0.08 |
| 360H | Superior/Qualified product | 50/150 | 26.5～29.5/26.0～30.0 | 0.08/0.08 |
| 370H | Superior product/Qualified product | 50/100 | 21.5～24.5 | 0.05/0.08 |
4. Experimental methods and quality control
The standard specifies a variety of experimental methods, including:
- Chroma measurement: Adopting the platinum-cobalt colorimetric method of GB/T605-2006
- Hydroxy value determination: Using GB/T12008.3-2009 as the arbitration method
- Determination of sodium and potassium content: Ion selective electrode method
5. Implementation suggestions
Quality control suggestions:
- Strictly follow the standard requirements for raw material procurement and production monitoring
- Establish a complete testing record system to ensure data traceability
- Regularly calibrate experimental equipment to ensure the accuracy of test results
User case:
After adopting this standard, a polyurethane manufacturer significantly improved product quality stability and reduced customer complaints by 15%.
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