检测项目

1.冲击强度：Charpy冲击强度≥15kJ/m²，测试温度23°C，偏差±0.5kJ/m²

2.断裂伸长率：≥200%，拉伸速率50mm/min，测量精度±1%

3.抗拉强度：≥40MPa，屈服强度≥35MPa，应变速率控制±0.1mm/min

4.弹性模量：≥2500MPa，测量精度±50MPa，采用静态拉伸法

5.硬度：ShoreD硬度70-80，加载力1kgf，分辨率0.1度

6.耐环境应力开裂：无裂纹after1000hin10%NaOH溶液，温度23°C

7.热稳定性：维卡软化点≥80°C，加热速率50°C/h，精度±0.5°C

8.密度：1.35-1.45g/cm³，偏差±0.01g/cm³，使用浮力法

9.熔融指数：≤0.5g/10minat190°C/2.16kg，取样时间间隔10s

10.环刚度：≥8kN/m²forDN100pipe，变形量3%，力值精度±0.1kN

11.爆破压力：≥2.5倍工作压力，测试压力1.6MPaforPN10，保压时间60s

12.疲劳寿命：≥10000cyclesat0.5-1.5倍工作压力，频率1Hz，压力波动±0.05MPa

检测范围

1.PVC-M给水管DN20：直径20mm，壁厚2.0mm，用于家庭供水系统

2.PVC-M给水管DN50：直径50mm，壁厚3.0mm，用于建筑内部管道网络

3.PVC-M给水管DN100：直径100mm，壁厚5.0mm，用于市政供水主干线

4.PVC-M给水管PN10：压力等级10bar，工作压力1.0MPa，适用于低压应用

5.PVC-M给水管PN16：压力等级16bar，工作压力1.6MPa，用于中压供水

6.灰色PVC-M给水管：标准颜色，用于一般供水，外径公差±0.3mm

7.蓝色PVC-M给水管：标识饮用水，符合卫生标准，重金属含量≤0.01mg/L

8.高抗冲PVC-M管：添加抗冲改性剂，冲击强度≥20kJ/m²，用于易冲击环境

9.低温用PVC-M管：适用于-10°C环境，耐寒性能测试，低温冲击强度≥10kJ/m²

10.高温用PVC-M管：维卡软化点≥90°C，用于热水系统，工作温度≤60°C

11.薄壁PVC-M管：壁厚减薄20%，轻量化设计，环刚度≥6kN/m²

12.厚壁PVC-M管：壁厚增加30%，高压力应用，爆破压力≥4.0MPa

检测方法

国际标准：

ISO1167-1:2020Thermoplasticspipes—Resistancetointernalpressure—Part1:Generalmethod

ISO6259-1:2020Thermoplasticspipes—Determinationoftensileproperties—Part1:Generaltestmethod

ISO179-1:2023Plastics—DeterminationofCharpyimpactproperties—Part1:Non-instrumentedimpacttest

ISO306:2022Plastics—Thermoplasticmaterials—DeterminationofVicatsofteningtemperature(VST)

ISO1183-1:2019Plastics—Methodsfordeterminingthedensityofnon-cellularplastics—Part1:Immersionmethod,liquidpyknometermethodandtitrationmethod

ISO1133-1:2022Plastics—Determinationofthemeltmass-flowrate(MFR)andmeltvolume-flowrate(MVR)ofthermoplastics—Part1:JianCemethod

ISO9969:2016Thermoplasticspipes—Determinationofringstiffness

ISO9080:2012Plasticspipingandductingsystems—Determinationofthelong-termhydrostaticstrengthofthermoplasticsmaterialsinpipeformbyextrapolation

ASTMD638-22JianCeTestMethodforTensilePropertiesofPlastics

ASTMD256-23JianCeTestMethodsforDeterminingtheIzodPendulumImpactResistanceofPlastics

ASTMD2240-23JianCeTestMethodforRubberProperty—DurometerHardness

ASTMD2837-22JianCeTestMethodforObtainingHydrostaticDesignBasisforThermoplasticPipeMaterialsorPressureDesignBasisforThermoplasticPipeProducts

国家标准：

GB/T8804.2-2003Thermoplasticspipes—Determinationoftensileproperties—Part2:Pipesmadeofunplasticizedpoly(vinylchloride)(PVC-U)

GB/T14152-2001Thermoplasticspipes—Determinationofresistancetoexternalblows—Round-the-clockmethod

GB/T8802-2001Thermoplasticspipes—DeterminationofVicatsofteningtemperature

GB/T1033.1-2008Plastics—Methodsfordeterminingthedensityofnon-cellularplastics—Part1:Immersionmethod,liquidpyknometermethodandtitrationmethod

GB/T3682.1-2018Plastics—Determinationofthemeltmass-flowrate(MFR)andmeltvolume-flowrate(MVR)ofthermoplastics—Part1:JianCemethod

<极>GB/T9647-2015Thermoplasticspipes—Determinationofringstiffness

GB/T18252-2000Plasticspipingandductingsystems—Determinationofthelong-termhydrostaticstrengthofthermoplasticsmaterialsinpipeformbyextrapolation

GB/T19466.2-2004Plastics—Determinationoftensileproperties—Part2:Testconditionsformouldingandextrusionplastics

GB/T18477.1-2007Plasticspipesandfittings—Methodsforexposuretodirectweathering

GB/T19278-2018Thermoplasticspipesandfittings—Vocabularyandsymbols

检测设备

1.万能材料试验机：型号UTM-5000.最大载荷50kN，可进行拉伸、压缩、弯曲测试，精度±0.5%

2.冲击试验机：型号IT-300.用于Charpy和Izod冲击测试，能量范围0.5-50J，温度控制-40°Cto100°C

极>3.硬度计：型号HD-100.ShoreD硬度测量，加载力1kgf，分辨率0.1度

4.密度计：型号DEN-200.基于浮力法，测量范围0.001-3.000g/cm³，精度±0.0001g/cm³

5.热变形温度测试仪：型号HDT-400.最高温度300°C，加热速率50°C/h，精度±0.5°C

6.环刚度试验机：型号RST-600.用于管材环刚度测试，力范围0-10kN，位移精度0.01mm

7.爆破压力试验机：型号BPT-800.压力范围0-10MPa，可进行静液压测试，数据记录频率100Hz

8.疲劳试验机：型号FAT-900.循环压力测试，频率0.1-5Hz，压力范围0-5MPa，循环次数计数精度±1%

9.环境应力开裂箱：型号ESC-100.控制温度20-80°C，化学环境模拟，用于应力开裂测试

10.显微镜：型号MIC-700.用于断裂表面分析，放大倍数40-1000x，数码成像分辨率5MP