SKC sampling bag Tedlar from the United States; 232-01

SKC sampling bag Tedlar from the United States ® 232-01

1. Core Specifications

• Part Number: 232-01

• Brand: SKC (USA)

• Capacity: 1 Liter

• Material: DuPont ™ Tedlar ® (PVF, Polyfluoroethylene) film

• Thickness: 2 mil (approximately 0.05 mm)

• Characteristics: Excellent chemical inertness, wear resistance, and low adsorption.

• Dimensions: Approximately 22.86 x 17.78 cm (9 'x 7')

• Packaging (Pack Size): Usually 10 pieces per pack (standard order number 232-01), there are also single pack sizes (232-01A).

2. Connections&Valves

The feature of this model is equipped with a single polypropylene combination joint:

• 2-in-1 design: Integrate the hose connection and the injection septum into a lightweight connector.

• Valve function: The entire joint itself serves as a shut-off valve. By rotating the joint, the air path can be opened or closed.

• Injection spacer: with Teflon on the top ®） The lining spacer allows the use of airtight needles for injection or sample extraction.

• Temperature resistance: The upper operating temperature limit for polypropylene joints is approximately 93.3 ° C (200 ° F).

3. Application scope (Applications)

SKC Tedlar ® Bags are considered the industry standard for gas sampling (referring to the US EPA method) and are suitable for:

• Volatile Organic Compounds (VOCs): They exhibit good stability even at low concentrations (ppm/ppb level).

• Gases: such as carbon monoxide (CO), carbon dioxide (CO2), methane (Methane), sulfur hexafluoride (SF6), etc.

• Partial sulfides: have good short-term stability against hydrogen sulfide (H2S), methyl mercaptan, etc. (usually recommended for analysis within 24-48 hours).

4. Key Usage Guidelines

• Storage time: Samples are recommended to be analyzed within 24-48 hours and are not recommended for long-term storage as gases may penetrate or undergo surface adsorption.

• Sampling pump connection: It is recommended to use PTFE (Teflon) material pipeline to connect the sampling pump to reduce pipeline adsorption.

• Unstoppable pressure: only designed for sampling under atmospheric pressure. Do not overfill or pressurize the bag, as it may cause it to rupture.

• Cleaning and cleansing: It is usually recommended to clean with high-purity nitrogen or clean air (inflation exhaust) at least 3 times before use to reduce background interference.

5. Common supporting equipment

• Vacuum sampling box (Vac-U-Chamber): Due to its single valve design, it is often used in conjunction with SKC's small vacuum sampling box (which collects gas through negative pressure principle without passing through a pump to avoid contamination).

• Low flow air sampling pump: such as SKC Pocket Pump or AirChek series.

SKC sampling bag Tedlar from the United States ® 232-01