Model 290/II with KB*
Order number: 00180331-
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Pycnometer
Model 290/II with KB*
290 型比重计用于测定涂料和其他液体或膏状产品的密度。物质密度 r 是其质量 m 与其体积 V 之商。涂料密度的参考温度为 20°C,除非另有约定。在 20℃ 下的密度指定为 r20。用于测定密度的比重计填充有待测试的液体/膏泥。密度由已填充的和空的比重计以及已知填充体积之间的重量差计算。
设计和功能
比重计由一个容器和一个带溢流孔的盖子组成。Pycnometer 有两种型号:
- 阳极氧化铝制成的仪器
- 不锈钢仪器
每个容积为
- 50 立方厘米
- 100立方厘米。
标准 ERICHSEN Pycnometer 的公差为 0.2 %。根据要求,所有仪器的公差均可达到 0.1 %,并提供官方计量局的证书,但需额外收费。100 ccm Pycnometer 适用于一般用途,而 50 ccm 版本主要用于糊状材料,因为这种应用更易于操作。
测试程序
将温度调至 20 °C,称量毕赤计的重量,然后在 20 °C的温度下注入试样材料,直至略低于顶端边缘,以避免空气滞留。然后轻轻转动盖子,使其就位,并擦去从溢流孔溢出的多余材料。然后再次称重。要打开 Pycnometer,可在附件中提供一个特殊的开启辅助工具。
附件。有关精确计算,请参考 DIN 53 217 - 第 2 部分中描述的公式。
根据 DIN 55 350-18 标准,所有 290 型 Pycnometer 都附有制造商证书 M,其中包括以下信息:
- 体积(立方厘米
- 产品编号
- 使用的测试设备和校准状态
- 日期
- 检验员姓名
比重计的体积是用蒸馏水作为测试介质测定的(误差为 0.2%)。如需额外收费,也可提供容差为 0.05 % 的 Pycnometer。根据 2015 年 1 月 1 日颁布的新校准法,290 型比色计还可提供合格评定证书(而非官方校准证书)。
供货范围
- Pycnometer, 型号 290/II 阳极氧化铝,容积 50 毫升
- 包括合格评估和测试证书
Technical Descriptions
Norms
- DIN 53 217
- ISO 2811
- BS 3900:A 12
- SIS 18 41 11
- SNV 37 100
- VDA 621-103
Technical specifications
Material
Aluminum
Volume
50 ml
Equipment
Order number: 04760132
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Order number: 04760132
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Order number: 04760132
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Order number: 04760132
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Order number: 04760132
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Order number: 04760132
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Order number: 04760132
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Non-Binding Inquiry
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Order number: 04760132
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Non-Binding Inquiry
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Order number: 04760132
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Non-Binding Inquiry
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