真空取样瓶 | 29-BV040A

产品特点：

STEL监控 - 真空取样瓶

STEL Monitoring - Vacuum Sampling Bottles

短期暴露限制（STEL）监测可以使用真空瓶式Vac采样器和MiniCans进行，也可以使用第82-85页上的新型氦气吸收式采样（HDS）个人监测器进行监测。

Vacuum sampling for 15 minutes into a Bottle-Vac or MiniCan is easily accomplished using a simple restrictor and transfer line leading to the evacuated sampler worn on a convenient waist-mounted pouch. The chart below shows the fill times based on the size of the sampler used. Note that lling with a critical orice sampler maintains a constant flow rate only until the canister or Bottle-Vac is half full, then the flow rate will begin to decrease. Fortunately, the sampling can be stopped at 50% of atmospheric pressure while still providing several times the amount of sample needed by a laboratory to perform the analysis. Typically laboratories will measure the pressure, dilute the sample 2-3x to create a positive pressure in the container, and then adjust for the dilution when determining concentrations. Using this approach, the dilution amount is very reliably determined via pressure measurement, allowing a high degree of accuracy.

订购信息：

应用谱图

真空取样瓶 | 29-BV040A信息由北京谱朋科技有限公司为您提供，如您想了解更多关于真空取样瓶 | 29-BV040A报价、型号、参数等信息，欢迎来电或留言咨询。

除供应真空取样瓶 | 29-BV040A外，北京谱朋科技有限公司还可为您提供替换针头 | 8647-01、Netting for 1L Bottle-Vac™ 29-59132、耶拿 漏斗 Funnel for sulfuric acid vessel | 402-825.108等产品，公司有专业的客户服务团队，是您值得信赖的合作伙伴。