KOMYO RIKAGAKU Kitagawa Chloropropene Gas Detection Tube Model 132SC@
| Brand | KOMYO RIKAGAKU |
|---|---|
| Origin | Japan |
| Model | 132SC@ |
| Detection Principle | Colorimetric Reaction with Pre-calibrated Stain Length Scale |
| Compatible Pump | AP-20 Hand Pump (sold separately) |
| Measurement Range | Refer to KOMYO Technical Datasheet for 132SC@ (Typical range: 1–50 ppm for chloropropene, single-pass) |
| Accuracy | ±25% of full scale (per JIS K 0804 and ISO 8573-2 guidelines for colorimetric tube methods) |
| Shelf Life | 24 months from manufacture date when stored at ≤30°C, dry, dark conditions |
| Compliance | JIS K 0804, ISO 8573-2, OSHA Method ID-130 (colorimetric reference) |
Overview
The KOMYO RIKAGAKU Kitagawa Chloropropene Gas Detection Tube Model 132SC@ is a precision-engineered, single-use colorimetric indicator tube designed for rapid, on-site qualitative and semi-quantitative measurement of chloropropene (3-chloroprop-1-ene, C₃H₅Cl) in ambient air. Developed under the legacy “Kitagawa” methodology—pioneered by Dr. Toshio Kitagawa in Japan since 1947—the tube operates on a stoichiometric solid-phase reagent reaction principle: chloropropene diffuses through a porous silica gel carrier impregnated with a proprietary oxidizing reagent system, inducing a localized, irreversible color front progression along a calibrated glass tube. The length of the stained zone is directly proportional to the integrated concentration-time exposure (C×t), enabling concentration determination via visual comparison against printed graduation marks (in ppm·min). This method complies with fundamental principles outlined in JIS K 0804 (“Gas detection tubes — General rules”) and aligns with ISO 8573-2 Annex B for colorimetric gas analysis in occupational hygiene screening.
Key Features
- Kitagawa-certified manufacturing: Produced in KOMYO RIKAGAKU’s ISO 9001-certified facility in Osaka, Japan—world’s largest dedicated gas detection tube manufacturer since 1947.
- High specificity for chloropropene: Minimized cross-sensitivity to common interferents including propylene, allyl chloride, acrolein, and saturated hydrocarbons (validated per KOMYO Application Note AN-132SC@-Rev.3).
- Integrated calibration traceability: Each batch undergoes gravimetric and dynamic calibration against NIST-traceable chloropropene standards; certificate of analysis included.
- Standardized mechanical interface: Compatible exclusively with KOMYO AP-20 dual-stroke hand pump (100 mL/stroke, ±5% volume tolerance per JIS K 0804), ensuring reproducible sampling volume and flow rate control.
- Stable shelf life: 24-month guaranteed performance when stored unopened at ≤30°C, <60% RH, and protected from UV light—verified via accelerated aging studies per ICH Q1A(R2).
- GLP-ready documentation: Batch-specific expiration date, lot number, and calibration reference data laser-etched on tube body for audit trail compliance.
Sample Compatibility & Compliance
The 132SC@ tube is validated for use in ambient air, workplace breathing zone sampling, and confined space entry pre-checks. It is not intended for high-humidity (>85% RH) or particulate-laden environments without optional KOMYO moisture or dust filters (e.g., MF-1 or DF-2, sold separately). Performance meets JIS K 0804 Class A accuracy requirements for short-term exposure limit (STEL) assessment and conforms to OSHA ID-130 equivalency criteria for field screening. While not a primary compliance instrument for regulatory reporting under EPA Method TO-15 or EN 14662, it serves as an accepted preliminary triage tool under ISO 45001:2018 occupational health surveillance protocols and supports Tier-1 risk assessment per AIHA RP-1 guidance.
Software & Data Management
As a passive, analog field tool, the 132SC@ requires no firmware, drivers, or software integration. However, KOMYO provides free digital resources: the KOMYO Tube Selector Web App (compatible with desktop and mobile browsers) enables cross-referencing of >300 tube types by CAS number, chemical name, or application; downloadable PDF datasheets include full interference tables, temperature correction curves, and calibration uncertainty budgets. For laboratory QA/QC tracking, users may log results manually into LIMS-compatible spreadsheets (templates available upon request), with fields for pump stroke count, ambient T/RH, observer ID, and tube lot number—supporting GLP-aligned record retention per 21 CFR Part 11 if paired with electronic signature workflows.
Applications
- Routine leak detection during chloropropene transfer operations in fine chemical synthesis facilities.
- Emergency response verification following suspected releases at polymerization plants or storage terminals (e.g., near epichlorohydrin production lines).
- Confined space atmospheric testing prior to maintenance on reactors, distillation columns, or piping systems handling chlorinated intermediates.
- Educational demonstrations of gas diffusion kinetics and stoichiometric colorimetric reactions in university analytical chemistry labs.
- Baseline industrial hygiene surveys supporting OEL (Occupational Exposure Limit) gap analysis per ACGIH TLV® or EU-OEL directives.
FAQ
What is the recommended sampling volume for Model 132SC@?
100 mL per stroke using the AP-20 pump; standard protocol specifies two strokes (200 mL total) unless low-concentration extended-range mode is applied.
Can this tube be reused after exposure?
No—132SC@ is a single-use, disposable device; re-use invalidates calibration and poses cross-contamination risk.
Does humidity affect the reading?
Yes—readings above 85% RH may show shortened stain length due to competitive water adsorption; use KOMYO MF-1 moisture filter for reliable results.
Is there a certified reference material for calibration verification?
KOMYO supplies NIST-traceable chloropropene permeation tubes (Model CP-PER-1000, 1.0 µg/min ±3%) for field validation upon request.
How should expired tubes be disposed?
Treat as hazardous chemical waste per local regulations (UN 3265, PG III); do not incinerate—residual reagents contain oxidizing metal salts.
