Frequently Asked Questions (FAQ):

1. What is the AS ONE Tedlar® Gas Sampling Bag (1-2710-01)?

The 1-2710-01 model is a 1 L polyvinyl fluoride (Tedlar®) sampling bag equipped with two PVDF ports (φ6 mm) featuring built-in caps and septa. It allows leak-free, repeated gas sampling without disconnecting tubing.

2. How does model 1-2710-01 differ from other AS ONE Tedlar® bags?

1-2710-01: 1 L capacity, two openings with caps.

1-2710-02: 2 L capacity, two openings with caps.

1-2713-02: 2 L capacity, one opening (standard).

The main differences are bag volume and number of sampling ports.

3. What are the recommended operating temperature and pressure limits?

Temperature range: −30 °C to +70 °C.

Maximum internal pressure: 2 psi (≈0.14 bar) to avoid bag distortion or leakage.

4. Can the bag be reused? How many times?

You can typically reuse the bag for 5–10 sampling cycles, provided the septa and valves remain undamaged and free of contamination.

5. How should I clean and maintain the bag?

Purge with inert gas (e.g., N₂ or He) 3–5 times or apply a light vacuum.

Inspect septa and valve fittings; replace septa if punctured or torn.

Store the empty bag in a dry, dust-free environment.

Avoid sharp bends or excessive tension on ports during handling.

6. Which gases or environments are unsuitable for this bag?

Streams containing large particulates or abrasive dust.

Highly acidic or basic vapors at high concentration.

Reactive compounds prone to surface adsorption at ppb levels.

Samples above the bag’s temperature or pressure limits.

7. How do I connect the bag to my sampling system?

Use silicone or PTFE tubing with 4–6 mm inner diameter.

Insert tubing onto the φ6 mm port fitting.

Open the valve by rotating the fitting counterclockwise.

Fill or evacuate the bag as required, then close the valve clockwise.

8. What spare parts or accessories are compatible?

PVDF septa (genuine AS ONE replacement).

Two-way PVDF valve fittings.

4–6 mm ID silicone or PTFE tubing.

Stainless steel gas syringes (23–27 G needles).

9. What is the shelf life of an unused bag and how should I store it?

Unopened shelf life: at least 2 years when stored at 20–25 °C, <50 % RH, away from direct sunlight.

After sampling: analyze within 48 h for most analytes (maximum 7 days for stable gases).

10. How do I place an order and what is the typical lead time?

Order through QTE Technologies - AS ONE distributors in Vietnam.

Standard lead time: 3–7 working days.

Rush orders may ship faster if stock is available.