Gas detector tube

Product Overview
Colorimetric gas detector tubes for Phosphine (PH3) provide rapid, on-site concentration readings. Sealed glass tubes contain a reagent that changes color when sampled air is drawn through the tube with an appropriate hand pump. The length of the color stain indicates concentration according to the printed scale.

Application

• Low‑range PH3 tubes for leak detection and personnel safety monitoring.
• High‑range PH3 tubes for process control and fumigation monitoring.

Features

• Ready-to-use, maintenance-free colorimetric measurement.
• Portable and cost-effective for field checks.
• Available in Uniphos (thicker) and KwikDraw (thin) tube formats.
• Compatibility: Uniphos tubes with ASP-40 air sampling pump; KwikDraw tubes with KwikDraw Deluxe Pump.

Uniphos Gas Detector Tubes - Table
Gas Name | Standard Range | Extended Range | Tube Name | Ordering Code
Phosphine | 0.05 – 2.5 | 0.05 – 5 | SPH – 1L | CF000123
Phosphine | 0.3 – 5 | | SPH – 1M | CF000124
Phosphine | 0.1 – 10 | 0.05 – 20 | SPH – 1 | CF000125
Phosphine | 5 – 100 | 2.5 – 200 | SPH – 3 | CF000126
Phosphine | 50 – 1000 | 25 – 2000 | SPH – 4 | CF000127
Phosphine | 150 – 3000 | 75 – 3000 | SPH – 5 | CF000128
Phosphine | 300 – 8000 | 150 – 8000 | SPH – 6M | CF000738

KwikDraw Gas Detector Tubes - Table
Substance | Standard Range | Extended Range | Tube Name | Ordering Code
Phosphine | 0.1 – 3 | 0.05 – 3 | PH3-0.05 | D5085829
Phosphine | 0.1 – 100 | | PH3-0.1 | D5085830
Phosphine | 0.1 – 100 | | PH3-0.1 (200 Tubes) | D5085930
Phosphine | 50 – 2000 | | PH3-50 | D5085831

Technical specifications

• Detection principle: Colorimetric (sealed glass tube with reagent producing a color stain proportional to gas concentration).
• Tube types: Uniphos (thicker) and KwikDraw (thin) formats.
• Concentration coverage: examples from 0.05 ppm up to 8000 ppm depending on tube model (see tables above for ranges and ordering codes).
• Representative Uniphos models and codes: SPH – 1L (CF000123), SPH – 1M (CF000124), SPH – 1 (CF000125), SPH – 3 (CF000126), SPH – 4 (CF000127), SPH – 5 (CF000128), SPH – 6M (CF000738).
• Representative KwikDraw models and codes: PH3-0.05 (D5085829), PH3-0.1 (D5085830), PH3-0.1 (200 Tubes) (D5085930), PH3-50 (D5085831).
• Typical uses: leak detection at low concentrations for personnel safety and high concentration process control in fumigation operations.
• Compatibility: Uniphos tubes for use with ASP-40 pump; KwikDraw tubes for use with KwikDraw Deluxe Pump.
• Maintenance: maintenance-free, portable field solution for rapid spot checks.