6.32 Opening the Vials

To open a vial, slip the open end of the appropriate Extractor/Vial Opener over a threaded end- plug, align the pegs in the end-plug with the slots in the Extractor, and turn the knob clockwise until the end-plug is drawn out. If the end-plug is drawn out within a millimeter or two of the end of the center cylinder and stops, rock the Extractor gently to dislodge the end plug. Always be careful that the vial does not fall and spill its contents.

If the Extractor/Vial Opener jams with the end-plug part way out, let the vial warm up before removing the end plug. Forcing out the end-plug can damage the Extractor or break the polycarbonate center section. The best way to prevent the Extractor from jamming is to make sure both the Extractor and the threaded end-plugs are dry and clean before you use them.

If the Extractor/Vial Opener jams when being threaded into a cold end plug, this is probably due to water condensing on the extractor screw. The water freezes when it contacts a cold end plug. If this happens, make a habit of wiping off the screw with a paper towel before each use. Note that the end of the screw is tooled with an “X” cut to help remove any ice that forms on the end plug, but this is not always effective. Chilled vials can also be opened easily and quickly with the 6814 Auto-Extractor (page 22), an optional motorized accessory for opening Small and Large Freezer/Mill vials.

Rarely an end plug will stick in the vial when cold, even if the Extractor screw and end plug threads are dry and clean. If this happens do not force the end plug out, as you may damage the vial and/or the Extractor. First warm up the vial. The vial can be allowed to warm up gradually, wrapped in several layers of cloth or paper towels, or a hair-dryer or running hot water can be used to warm up the stuck end-plug more rapidly. Once the vial is warm, the stuck end plug can be drawn out by hand or with a pair of pliers. When using pliers to extract an end-plug, rotate the end-plug and pull gently, as if you were trying to unscrew a bottle-cap. Forcibly rocking the end-plug from side to side can stress the polycarbonate tube and crack it.

Caution: pressure can develop inside a Freezer/Mill vial as it is warming. This is most likely caused by some liquid nitrogen having been introduced into the vial when it was being loaded, so try to avoid this. As pressure builds, an end plug can pop out and the sample can be lost. For this reason we recommend handling vials with care when forcefully warming them, and wrapping them in toweling if they are being warmed up gradually.

6.33 Emptying the Vials

As soon as an end plug is removed from a cold vial, empty the contents of the vial into a suitable container: the quicker the better as condensation on a cold sample occurs rapidly. Often it is helpful to tap the closed end of the vial to release the ground sample. Remember that the impactor may slide out ahead of the contents or with them, and that the longer the sample is exposed to air, the more water it will acquire from condensation. Samples which were tacky, squishy, etc., at room temperature will also return to that state as they warm up, and may agglomerate.

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SPEX SamplePrep LLC

9.24.07

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Allied Telesis 6870 manual Opening the Vials, Emptying the Vials
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6870 specifications

The Allied Telesis 6870 is a robust Layer 3 Ethernet switch designed for high-performance networking in enterprise environments. Incorporating advanced features and technologies, it serves as a vital component in managing complex network infrastructures, ensuring seamless connectivity, reliability, and enhanced performance.

One of the standout characteristics of the 6870 is its support for a high number of Gigabit Ethernet ports. With multiple SFP and SFP+ ports, the switch allows for flexibility in connecting various devices, while also facilitating the use of different physical media. This capability is crucial for organizations that demand versatile connection options, particularly when managing diverse networking equipment.

The switch is equipped with advanced Layer 3 routing capabilities, allowing it to perform IP routing functions in addition to standard Ethernet switching. Suitable for traffic management, the switch supports protocols such as OSPF, RIP, and static routing, enabling efficient and intelligent path selection in larger networks. This functionality is essential for optimizing bandwidth usage and maintaining an efficient data flow throughout the network.

Another highlight of the Allied Telesis 6870 is its support for VLANs (Virtual Local Area Networks). VLANs enable network segmentation, improving security and performance by isolating different segments of traffic. This capability is further enhanced by the switch's support for advanced features like Ingress/Egress Rate Limiting and Quality of Service (QoS). These features allow network administrators to prioritize critical applications and ensure that bandwidth is allocated effectively.

The switch also incorporates the innovative Allied Telesis Autonomous Management Framework (AMF), which simplifies device management and network configuration. With AMF, administrators can manage multiple switches as a single logical entity, reducing operational complexity and minimizing downtime. This technology supports zero-touch provisioning, enabling rapid deployment and configuration of network devices.

Security is another key aspect of the 6870, with features such as Access Control Lists (ACLs) and IEEE 802.1X port-based authentication. These measures help protect the network from unauthorized access and ensure that only authenticated devices can connect to the network.

In summary, the Allied Telesis 6870 is a versatile and powerful switch that meets the demands of modern enterprise networks. With its comprehensive feature set, including high-performance routing, VLAN support, and advanced management capabilities, it offers a reliable solution for organizations seeking to optimize their network infrastructure. Whether for deploying new services or managing existing traffic, the 6870 stands out as a formidable choice for network administrators.
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