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Helping the Chemical Industry Operate Safely

There are two basic requirements when sampling hazardous liquids:

  1. The sample must be representat­ive, and must not get contaminated by moisture, oxygen or other external elements outside the sampling station.

  2. Sampling must be safe for the operator, lab personnel, or anyone else in proximity to the sampling station. as well as for the environment.

Sampling stable liquids is typically done in bottles, jars or other "open-top" receptacles. The choice of accessory depends on a lot of factors, some of which include:

  • Type of chemical sampled
  • Reactivity of chemical with atmosphere
  • Level of protection required for the operator

Because each process is unique, our Engineering Team has designed systems for the most complex requirements.

Here is an overview of some of the most common bottle accessories:

Bottles and jars of stable liquid samples
Thread Adapter

The bottle is screwed under the valve. To remove the bottle, the operator unscrews the bottle and then screws the cap on it.

A safety plug is screwed into the thread adapter when the sample valve is not in use to provide secondary containment as required by the Code of Federal Regulations on open-ended valves or lines.

Bottle Support

The bottle sits on a spring-loaded support. The operator can easily lower the support to remove the bottle from under the valve.

The operator should screw a safety plug into the adapter when the sample valve is not in use. This action provides secondary containment as required by the Code of Federal Regulations on open-ended valves or lines.

Needle Adapter

Needle Adapters are most effective when used with Septa Bottles. Due to the nature of the septum, the operator's exposure to toxic fumes and sample vapors is limited.

To guarantee a 100% directly representative sample every time, we recommend the use of our valves with Nitrogen (N2) Rinsing Systems.

Safety Cabinet

The safety cabinet adds an extra layer of protection to a bottle support, thread adapter or needle adapter.

Although it reduces exposure, the operator is exposed briefly and unavoidably when he or she opens the door to obtain the bottle. To help maximize industrial hygiene, the cabinet can be vented during and after sampling.

Additionally, safety cabinets can be fitted with multiple windows, and a drain and vent connection.


As with the safety cabinet’s thread adapter feature, the cap is screwed onto the bottle within the safety cabinet.

This piece of equipment is the same as a "glove box" and allows the operator to grab a sample in a bottle in a totally controlled environment, without being subjected to exposure nor accidentally releasing a sample into the atmosphere.


Copy of BIAR_Dynamic CTA_EM_5