GB

ISO

ASTM

标准名称

GB/T 1633

ISO 306(E):2013

ASTM D1525

维卡软化温度（VST）的测定

Plastics � Thermoplastic materials � Determination of Vicat softening temperature (VST)

GB/T 1634.1

ISO 75-1:2003� IDT

ASTM D648

塑料负荷变形温度测定（通用试验方法（�/span>

Plastics � Determination of temperature of deflection under load � Part 1: General test method

GB/T 1634.2

ISO 75-2:2003� IDT

ASTM D648

塑料负荷变形温度测定（塑料、硬橡胶和长纤维增强复合材料（�/span>

Plastics � Determination of temperature of deflection under load � Part 2: Plastics� ebonite and long-fibre-reinforced composites

GB/T 1634.3

ISO 75-3:2003� IDT

ASTM D648

塑料负荷变形温度测定（高强度热固性层压材料）

Plastics � Determination of temperature of deflection under load � Part 3: High-strength thermosetting laminates

GB/T 8802

ISO 2507:1995

热塑性塑料管材、管件维卡软化温度的测定

Determination of softening temperature of vika of thermoplastic pipes and fittings

温度控制范围

RT�?00ℂ�/span>

升温速率

(120��10)ℂ�/span>/h (12��1)ℂ�/span>/6min

(50��5)ℂ�/span>/h (5��0.5)ℂ�/span>/6min

温度示值误�?/span>

0.1ℂ�/span>

实验架个�?/span>

3�?/span>

**形变示值误�?/span>

��0.001mm

变形测量范围

0�?.5mm

试样架自身热膨胀系数

；�/span>0.005mm/100ℂ�/span>

形变测量量具

高精度数显千分表

试样支承跨距

64mm戕�/span>100mm

负载杆及托盘质量

68g

加热介质

甲基硅油（运动粘度一般选择200厘斯）或变压器油

冷却方式

150以上自然冷却＋�/span>150以下水冷或自然冷即�/span>

加热功率

4kW

仪器尺寸

540mm��520mm��970mm

砝码

A�?/span>

1000g

12�?/span>

B�?/span>

900g

3�?/span>

C�?/span>

500g

3�?/span>

D�?/span>

200g

6�?/span>

E�?/span>

100g

3�?/span>

F�?/span>

50g

3�?/span>

G�?/span>

20g

6�?/span>

H�?/span>

10g

3�?/span>

I�?/span>

5g

3�?/span>

T�?/span>

2g

6�?/span>

W�?/span>

60g(负载杅�/span>)

3�?/span>