Application Scope
　　
This instrument is used for dip tests with dichloromethane on plastic pipes (PVC-U), fittings, and sheets, which assesses the plasticization degree and uniformity of the pipes. The plasticization level of the pipes directly affects their long-term static hydraulic properties and has a significant impact on the service life of the pipes. Different standards have varying requirements for the testing conditions of pipes. This equipment is widely used in the production factories of pipes, fittings, and sheets, as well as in construction quality inspection and research institutions.
Standard of Execution
　　GB/T13526、ISO/DIS9852。
Technical Specifications
1. Stainless Steel Container Specifications: Diameter 350mm, Height 280mm
Methane dichloride constant temperature: 20±0.5℃
3. Temperature Control Range: 10-50℃
4. Instrument temperature control accuracy: ±0.2℃
5. Instrument Display Accuracy: 0.1℃
6. Timer Range: 0-99 minutes
7. Timer Accuracy: 1 second
Sample Standard:
Sample length to be at least 100mm
Sample Method:
1. The depth should submerge the specimen at least 30mm
2. The water seal layer thickness is approximately 20mm
3. Maintain the sample at constant temperature for 20 minutes, then remove and dry for 15 minutes to observe the degree of surface damage.
Reagents: Dichloromethane; Analytical Purity Equipment: 800 grit sandpaper, Constant Temperature Water Bath, Timer, Stainless Steel Container
Sample: Cut a tube section at least 100mm long from the material, carefully machine the sample cross-section with a right-angle lathe without overheating the material, and then gently sand it smooth with 800-grit sandpaper to achieve a flat and even surface.