Pre-purchase and technical reference for IAS nuclear air purification products. Answers to the most common questions from procurement engineers, facility managers, and project teams worldwide.
Key specifications for IAS products — the numbers procurement teams need first.
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IAS-NC700-HI — Portable Nuclear Air Purification Cart
The factory standard is 380V / 3-phase / 50Hz, which is compatible with most international grids. UAE standard is 400V/50Hz — no voltage conversion is required for UAE deployments.
460V / 3-phase / 60Hz is available for North American (US/Canada) facilities. Other voltages can be configured to order. The unit includes a VFD (Variable Frequency Drive) which provides additional airflow adjustment flexibility independent of supply voltage. Specify your required voltage at time of order — voltage cannot be changed after manufacture.
Two replacement triggers apply — whichever occurs first:
Differential pressure trigger: Replace when the ΔP gauge reading reaches approximately 2× initial (clean) resistance. Monitor the gauge daily during nuclear operations.
Dose rate trigger: Replace immediately if the gamma dose rate measured at the HEPA filter face exceeds 250 µSv/h (25 mrem/h), regardless of differential pressure reading.
Do not rely on visual inspection alone — a HEPA filter can appear clean while carrying significant radioactive loading. Always wear appropriate protective gloves during filter removal. Double-bag removed filter elements immediately and handle per facility radiological waste procedures.
The unit has dual 11.8-inch (300 mm) diameter duct collars at both inlet and outlet, with removable protective covers that must be removed before operation.
Each unit ships standard with 32.8 ft (10 m) of 300 mm flexible duct and one clamp. Multiple duct materials are available depending on your application requirements: PVC, nylon, fiberglass, and fire-retardant coated reinforced fabric — all rated to 356°F (180°C) and 11.8 in. w.g. burst pressure.
For SAS tent exhaust connection, attach the 300 mm duct to the tent's exhaust collar and run to the unit's inlet. The VFD allows precise negative-pressure control within the enclosure.
Rated airflow is 700 CFM (1,200 m³/h) at rated speed. In practice, rated airflow is typically achieved at approximately 40 Hz on the VFD display.
The VFD speed control adjusts blower speed from 0 to rated RPM. Turning the control clockwise increases speed; counterclockwise decreases. Always adjust speed gradually — abrupt speed changes can cause airflow transients that disrupt enclosure negative-pressure. The VFD executes a 30-second controlled ramp-down when stopped to protect blower motor life.
DOP (Dispersed Oil Particulate) testing — also referred to as PAO (Polyalphaolefin) testing — is the standard factory acceptance test for nuclear-grade HEPA filters. A challenge aerosol of 0.3-micron droplets (the most penetrating particle size for HEPA media) is introduced upstream of the filter, and the downstream concentration is measured by a photometer.
System-level efficiency ≥99.97% means that of all 0.3-micron particles entering the unit, no more than 0.03% (3 in 10,000) pass through. Individual HEPA media elements are rated ≥99.99%. Both the HEPA element and the iodine adsorber are individually DOP tested at the factory before shipment.
Yes. Custom configurations — including 500 CFM rated airflow, 16-inch carbon bed depth, fold-down plenums, specific inlet/outlet adapter configurations, and custom dimensional envelopes — are available as engineered-to-order units.
For a custom 8-unit order with 500 CFM / 16-inch carbon bed / 304 SS / fold-down plenums: lead time is approximately 5 weeks for a sample unit (for your inspection and approval), then 12 weeks for the balance of 7 units after approval. Pricing for custom configuration: 0,500 / unit FOB (qty 8).
Contact our engineering team with your dimensional and performance requirements for a formal custom quotation.
Replacement filter elements are available individually as catalogued consumables:
IAS-HEPA-2424 — Replacement HEPA aerosol filter element, 24 × 24 × 11.5 in. (610 × 610 × 292 mm), ≥99.99% at 0.3µm
IAS-ICF-2424 — Replacement iodine (activated carbon) adsorber filter element, 24 × 24 × 11.5 in., DF >1,100 mg/g
IAS-PF-300 — Replacement inlet pre-filter ring (washable expanded-metal)
IAS-DUCT-300-10M — Replacement flexible duct, 300 mm × 10 m, with clamp
Contact sales@iodineairsystems.com with your unit serial number for replacement orders.
IAS-SDC-50 — Strippable Decontamination Coating
Film formation is complete within ≤2 hours at 25°C (77°F) in a ventilated environment. The film is dry-to-touch within 4 hours. The continuous peel window is ≤8 hours from application at 25°C.
For local spot decontamination applications applied by hand/roller, allow a minimum of 3 hours at ambient temperature before attempting to peel. Lower temperatures will extend cure time — at 5°C (41°F), expect approximately 1.5–2× the standard cure time. Do not apply below 5°C (41°F).
The film maintains mechanical integrity for ≥2 months after application on flat hard surfaces, allowing deferred mechanized recovery if needed.
Yes to both, with conditions.
Outdoor: IAS-SDC-50 is specifically designed for outdoor paved surfaces — concrete roads, asphalt, facility aprons. The spray vehicle applies product at the rated coverage rate. Do not apply on unpaved, highly irregular, or porous surfaces where the film cannot form a continuous peelable sheet.
Cold weather: Operating temperature range is 5°C–40°C (41°F–104°F) for application. Long-term use (post-cure) is rated to –10°C (14°F). At low ambient temperatures near the minimum, cure time will increase significantly. Do not apply if surface temperature is below 5°C or if frost is present. Protect applied film from rain for at least 2 hours after application during the critical early cure phase.
The surface decontamination factor (DF) is the ratio of initial surface contamination to residual contamination after decontamination. A DF of 85% means 85% of surface contamination is removed in a single application cycle.
IAS-SDC-50 achieves:
• Single-pass DF ≥85% on flat pavement or road surfaces, at an application density of 0.6–2.5 m²/L
• Multi-pass DF ≥95% with sequential application-cure-peel cycles on the same surface
• >85% DF against ³²P radioactive fallout simulant per enterprise standard test method
The high-molecular-weight polymer chains with chelating agent additives physically and chemically bind radionuclides, incorporating them into the film matrix as it cures. On peel, the bound radionuclides are removed with the film.
The recovered peeled film is classified as low-level radioactive solid waste — it is not classified as hazardous liquid, as the water has evaporated during the cure process. Handle and dispose of recovered film in accordance with your facility's radiological waste management procedures and applicable national regulatory requirements.
The film itself (without contamination) is non-toxic and non-hazardous. Once contaminated, it should be treated as LLW solid waste appropriate to the nuclide species and activity level present.
IAS-SDC-50 performs best on smooth, non-porous hard surfaces. The rated DF values (≥85% single-pass) are established on flat pavement and road surfaces.
Smooth concrete: Excellent — film forms continuous sheet, mechanical recovery achievable without fracture.
Asphalt: Good — effective on smooth asphalt pavement for outdoor radiological incident response.
Epoxy-coated industrial floors: Very good — smooth, sealed surface allows clean film formation and peel.
Rough / textured concrete: DF will be lower and film may fracture at surface irregularities during peel. Additional application passes and/or higher application density may improve results.
Unpaved / soil / gravel: Not recommended — film cannot form a recoverable continuous sheet.
Ordering, Shipping & Commercial Terms
Standard payment terms for all IAS products: T/T (telegraphic transfer wire) — 30% deposit upon order confirmation, 70% balance prior to shipment. L/C (Letter of Credit) can be considered for large orders on a case-by-case basis — contact us before order placement.
Wire transfer to our USD account at our US banking institution. Details provided on our pro-forma invoice after order confirmation. All transactions in USD.
Yes. We ship worldwide and provide both FOB (Free On Board, Sheridan WY) and CIF (Cost, Insurance, Freight) quotations to your destination port.
For 8 units of IAS-NC700-HI to Abu Dhabi (Khalifa Port): CIF sea freight approximately 3,500/unit (30–35 days transit) or 4,800/unit air freight (5–7 days). CIF pricing includes inland trucking from our facility to the US gateway port, ocean/air freight, cargo insurance, and destination handling. Customs clearance and import duty at destination are the consignee's responsibility.
UAE import duty is 5% on CIF value; VAT-registered importers can typically recover import VAT as input tax.
No. IAS-SDC-50 is a non-hazardous, non-flammable, non-toxic water-based emulsion. It carries no UN dangerous goods classification and is not subject to IMDG (sea), IATA (air), or ADR (road) dangerous goods restrictions. Standard commercial freight rates and documentation apply for both sea and air shipment.
IAS-NC700-HI: No formal MOQ — however, volume pricing applies from quantity 4 and up. The 2,800/unit pricing applies to orders of 8 units. Contact us for pricing at other quantities.
IAS-SDC-50: No MOQ — sold per 50 kg drum. Bulk orders (pallet quantities, 20-drum LCL, full container) available. Contact us for volume pricing on drum quantities above 20.
Replacement filter elements (IAS-HEPA-2424, IAS-ICF-2424): Sold individually, no MOQ.
Documentation, Certification & Compliance
Standard documentation supplied with each unit:
• Factory HEPA DOP test report for the installed HEPA filter element
• Material certificate for 304 SS housing (if SS option ordered)
• Electrical wiring diagram
• Operating and maintenance manual
• Packing list and commercial invoice
All standard documentation is included at no additional charge.
Yes, on a per-project basis. The following enhanced documentation packages can be arranged:
• ASME N509/N510 in-place leak test reports — field leak test on installed unit
• 10 CFR 50 Appendix B quality assurance records — nuclear QA documentation package
• Seismic Category I documentation — seismic qualification for nuclear plant environments
Important: Contact our engineering team before order placement to confirm the exact documentation scope required for your facility. Documentation requirements vary by jurisdiction, facility type, and project-specific design basis. Additional lead time and cost may apply for enhanced packages.
The IAS-NC700-HI is manufactured under a documented quality management system at Safety Class C3 / QA Category III, consistent with augmented-quality, non-Q-listed nuclear ventilation components.
This classification is appropriate for portable air cleaning equipment used in nuclear decommissioning, D&D, maintenance outage, and waste sorting applications that are not permanently installed in the nuclear safety system. If your project requires a higher QA classification, contact us before order placement to discuss options.
The IAS-NC700-HI is manufactured to the requirements of EJ/T 20088-2014 (Specification for Portable Air Purification Devices for Local Space in Nuclear Facilities) — the governing Chinese national design standard for portable, local-space (in-cell) nuclear air cleaning carts.
Design intent and performance philosophy are aligned with the framework established by ANSI/ASME AG-1 (Code on Nuclear Air and Gas Treatment) and ANSI N509 (Nuclear Power Plant Air-Cleaning Units and Components).
For projects requiring ANSI/ASME AG-1 or N509/N510 formal compliance (beyond design alignment), enhanced documentation packages are available on request — see the question above.
Full technical data sheets, application guides, and product pages for all IAS products.
Standards referenced in IAS product design, testing, and documentation packages.
China nuclear energy industry standard. Specification for Portable Air Purification Devices for Local Space in Nuclear Facilities. Governing design standard for IAS-NC700-HI.
Code on Nuclear Air and Gas Treatment. Comprehensive standard for nuclear ventilation systems. IAS-NC700-HI design philosophy is aligned to this framework.
N509: Nuclear Power Plant Air-Cleaning Units and Components. N510: In-place testing of HEPA filter systems. Enhanced documentation available on request.
US Nuclear Regulatory Commission reactor licensing requirements. Quality classification C3/QA Category III is consistent with non-Q-listed augmented nuclear ventilation components.
D412: Tensile/elongation testing for vulcanized rubber and elastomers (IAS-SDC-50 tensile strength). D624: Tear strength testing (IAS-SDC-50 tear strength).
IAEA decontamination and decommissioning safety reports. General framework for radiological decontamination product performance criteria applied to IAS-SDC-50.