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An Expert Guide to Selecting a 样本分配器

样品分离专家指南

In an industry crowded with various splitter types, it’s difficult to determine which is best to meet y我们的 specific needs. The sample division plays an important role in sample testing and analysis. A sample splitter allows a representative sample to be separated from a bulk quantity without changing its properties.

Using the proper splitter can help you reduce variability in the lab significantly. Check out 我们的 helpful guidelines so you can choose the best splitter to meet y我们的 needs and get the job done error-free.


首先考虑材料类型.

Splitters are the best choice for representative sampling of dry, flowable materials. 作为第一步, 你应该考虑颗粒大小, 形状, 密度, and moisture content when selecting the correct equipment. In fact, particle size dictates chute width. Adequate chute width is three times the largest dimension of the largest particle. This ensures that two of the largest particles in a sample can travel down the chute without becoming lodged (bridging). Bridging causes the material to 回来 up and be forced into adjacent chutes, 在样品中引入偏置误差. 相反, chutes that are too wide may not allow proper separation and will produce less accurate splits.

回顾测试规范.

When it comes to particular splitting specifications, some test methods specify a certain number of chutes or hopper capacities. 例如, some industries may require a steeper chute angle to aid the splitting of lower 密度 particles like coal or coke, and others may require a minimum number of chutes. Other test methods are less restrictive and allow different splitter configurations, 只要满足指定的条件.

确定尺寸和容量要求.

The fewer splits required when dividing materials, the better. A splitter with insufficient capacity requires additional dividing, 哪个增加了出错的可能性. It also requires more time and labor to perform multiple splits.

Standard test methods may specify a range of weight or volume for the final test specimen, or size may be limited simply by the available space in the test chamber. Estimating what fraction of the original sample the final specimen will determine the optimal number of passes. If the original sample is several cubic feet in volume and the test only requires a cup to be used, a large splitter is necessary and multiple splitting passes will be required. 随着样本量的减少, 一个额外的, smaller splitter may be required to maintain accuracy.

熟悉重要的特性.

When it comes to splitters, versatility is important. You need to consider the features that are most important to you. Here are some value-added features that will enhance the efficiency of y我们的 sampling process.

带闸门释放功能的料斗 - This is the best feature available for a sample splitter because it holds all materials in the hopper until they’re properly distributed and leveled. The gate-release hopper reduces human error that occurs when the material is p我们的ed unevenly into an open hopper and flows through a portion of the available chutes.

样本分配器料斗Material p我们的ed unevenly into an open hopper introduces sample bias.

可调斜槽酒吧 - This is important for a user with samples of varying maximum particle sizes. 可调斜槽酒吧 allow the chute widths to be changed for a range of materials, saving money and floor space compared to having multiple units.

样本分支器槽可调斜槽酒吧 can be optimized for different materials.

  • 我们建议 吉尔松通用的分割, which feature gate release hoppers and adjustable width chutes that offer the versatility, 适应性, 以及你需要的全部用户控制. This line of splitters has a row of precision-machined aluminum bars to adjust chute width and distribute material evenly into sample pans. This sophisticated design allows for the chute opening size to be modified quickly to the optimum width of three times the largest particle size.

分流器的材料 - Some applications with food-grade or reactive materials require sampling equipment to have contact surfaces that pose a low risk for contamination.

除尘 - Some materials are prone to creating nuisance dust during handling and splitting, which presents a potential health risk to employees.

感谢阅读我们的建议! For more information, check out 我们的 full selection of 通用的分割 或者拨打800.444.1508年与专家交谈!

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