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VOCs Combined Sampling Tube Stainless Steel with Copper Cap ¼” × 3½”

The VOCs Combined Sampling Tube (Stainless Steel with Copper Cap, ¼” × 3½”) is a precision-engineered thermal desorption sorbent tube designed for the reliable collection and analysis of volatile organic compounds (VOCs) in air and gas samples. Manufactured from high-grade stainless steel and sealed with durable brass/copper storage caps, this industry-standard sampling tube delivers exceptional performance in environmental monitoring, industrial hygiene, and indoor air quality testing applications.

VOCs Combined Sampling Tube Stainless Steel with Copper Cap ¼” × 3½”



Description


The VOCs Combined Sampling Tube (Stainless Steel with Copper Cap, ¼” × 3½”) is a precision-engineered thermal desorption sorbent tube designed for the reliable collection and analysis of volatile organic compounds (VOCs) in air and gas samples. Manufactured from high-grade stainless steel and sealed with durable brass/copper storage caps, this industry-standard sampling tube delivers exceptional performance in environmental monitoring, industrial hygiene, and indoor air quality testing applications.


This ¼-inch outer diameter × 3½-inch length (6.35 mm × 89 mm) tube conforms to the internationally recognized “industry standard” format, ensuring seamless compatibility with leading thermal desorption systems including PerkinElmer, Markes International, Dani, Shimadzu, and major domestic thermal desorbers. Available in multiple sorbent configurations—including single-bed, dual-bed, and triple-bed combinations—our VOCs sampling tubes are engineered to meet the rigorous demands of regulatory methods such as HJ734-2014, EPA TO-17, and EN ISO 16017.


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VOCs Combined Sampling Tube Key Specifications


ParameterSpecification
Product NameVOCs Combined Sampling Tube / VOCs Adsorption Tube
Material304 Stainless Steel
Outer Diameter¼ inch (6.35 mm)
Length3½ inches (89 mm)
Surface RoughnessRa ≤ 0.4 μm (available upon specification)
Sealing/Cap TypeBrass/Copper Storage Caps (optional PTFE caps also available)
Packaging10, 12 tubes per box
ConditioningPre-conditioned / pre-aged options available



Sorbent Configurations


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Our VOCs combined sampling tubes are available in multiple sorbent bed configurations to accommodate different VOC target compound ranges and regulatory methods:


Single-Bed Configuration


  • Tenax TA (200 mg): 2,6-diphenyl-p-phenylene oxide porous polymer; ideal for medium to high-boiling VOCs, benzene, and TVOC detection

  • Tenax GR: Tenax/graphite composite; extended range to lower-boiling compounds

  • Activated Carbon: Coconut shell activated carbon for broad-spectrum VOC capture


Dual-Bed Combination (Combination 1 & 2)


  • Combination 1: Tenax GR (30 mm) + Carbopack B (25 mm) – suitable for a wide range of VOCs including aromatic hydrocarbons

  • Combination 2: Carbopack B (30 mm) + Carboxen 1000 (10 mm) – optimized for both volatile and semi-volatile compounds


Triple-Bed Combination (Combination 3)


  • Carbopack C (13 mm) + Carbopack B (25 mm) + Carboxen 1000 (13 mm) – comprehensive coverage from C3 to C16 compounds




Regulatory & Method Compliance


Our VOCs combined sampling tubes are designed and manufactured to meet the stringent requirements of major international and national standards:



Standard/MethodApplication
HJ734-2014Stationary source emissions – Determination of VOCs by solid phase adsorption-thermal desorption/GC-MS
EPA TO-17Determination of VOCs in ambient air using sorbent tubes
EN ISO 16017Indoor, ambient, and workplace air – Sampling and analysis of VOCs by sorbent tube/thermal desorption/GC
GB50325-2020Indoor environmental pollution control standard for civil buildings
GB/T18883-2002Indoor air quality standard



VOCs Combined Sampling Tube Applications


  • Environmental Monitoring

  • Industrial & Occupational Hygiene

  • Indoor Air Quality (IAQ)

  • Soil & Vapor Intrusion


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VOCs Combined Sampling Tube Packing & Loading

10 or 12 pcs/box

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Why Choose Us?


  • Industry Expertise: Years of specialized experience in environmental monitoring consumables manufacturing

  • Quality Assurance: Rigorous quality control at every production stage to ensure batch-to-batch consistency

  • Regulatory Compliance: Products designed to meet the latest international and Chinese standards

  • Customization Capability: Flexible manufacturing to accommodate

  • Competitive Pricing: Premium quality at cost-effective price points

 

Contact Us


For technical specifications, customized solutions, or to place an order, please contact our sales team. We are committed to providing professional products and responsive service to support your VOCs monitoring needs.


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Contact: Mr. Rao

Phone: +86-153 0846 7103

Tel: +86 731 8504-7708

Email: info@jinxi-steel.com

Add: No. 568,Chuanggu Industrial Park, Queyuan Road, Tianxin District, Changsha City, Hunan Province, P.R.China.