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Material Smoke Toxicity Grading Test Apparatus

The smoke toxicity test apparatus is a testing device used to determine the toxicity class of smoke generated during material combustion. It employs a constant‑velocity carrier gas flow and a ring‑type furnace with stable heat supply to perform uniform‑speed, moving‑scan heating on samples of consistent mass. Under conditions of sufficient smoke generation, a toxicological exposure test is conducted to classify the material’s smoke toxicity hazard level.

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Building Energy-Efficient Material Testing Equipment

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Material Smoke Toxicity Grading Test Apparatus

Description

Product Introduction:

The smoke toxicity testing apparatus is a test device used to determine the toxicity class of smoke generated during material combustion. It employs a constant‑velocity carrier gas flow and a ring‑type furnace with stable heat supply to perform uniform‑speed, moving‑scan heating on samples of consistent mass. Under conditions of sufficient smoke generation, a toxicological exposure test is conducted to classify the material’s smoke toxicity hazard level.

Equipment composition:

1. Annular furnace: It consists of the furnace body, furnace tube, and furnace shell with electric heating elements; the inner wall of the annular furnace tube serves as the heat‑transfer surface.

2. Quartz Tubes and Quartz Boats: The quartz tubes and boats are made of quartz glass. The nominal diameter of the quartz tube is (36 ± 1) mm, with a wall thickness of (47 ± 1) mm and a length of 1000 mm.

3. Flue gas sampling assembly: composed of a three-way rotary valve, a dilution gas inlet pipe, and a distribution elbow.

4. Mouse rotarod: Made of aluminum, with a mass conforming to the standard ±10 g; the rotarod rotates freely on its support.

5. Toxicity chamber: Constructed from transparent, colorless acrylic, the chamber has an effective internal volume of approximately 9.2 L and can accommodate up to 10 mice for toxicity testing.

6. Temperature control system.

Product Features:

1. Microcomputer control and computer operation;

2. Annular furnace heating temperature calibration: Displays time, temperature curves, and a comparison chart of measured versus set temperatures; after setting the material’s smoke concentration and smoke generation rate, it automatically calculates and shows in real time a rotational speed graph of the rotor cage; the annular furnace’s operating time can be set arbitrarily, and it features manual and automatic fast‑forward and reverse functions.

3. Quartz tubes and quartz boats, crafted from fused quartz glass, feature an elegant appearance and are both convenient and practical.

4. Flue gas sampling and distribution assembly. A large-diameter three-way ball valve ensures unobstructed flue gas flow.

5. Mouse rotarod and mouse locomotion recording system: a specially designed rotarod that is lightweight, rotates smoothly, and has no fixed stationary point; equipped with a high-precision speed-measurement device to ensure experimental accuracy.

6. The metal frame and acrylic components of the exposure chamber are robust and durable, ensuring convenient observation.

7. Air supply system: the air‑supply unit employs a high‑power air pump to ensure stable airflow, while the flow‑rate control is provided by a glass rotor flowmeter, offering cost‑effectiveness, ease of operation, and convenient experimental preparation.

Technical Specifications:

Parameter Category	Parameter content
Power supply voltage	AC220V
Maximum Power Consumption	1.5KW
Heating power	800~1000W
Control accuracy	Static ±1°C (holding time greater than 2 min)
Airflow	0–20 L/min adjustable
Annular furnace displacement rate	(10±0.1) mm/min
Temperature control range	300~1000℃
External dimensions	Length × Width × Height: 2400 mm × 600 mm × 1420 mm

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FAQs

Do you supply full-set testing instruments for asphalt and geotechnical engineering projects?

We offer complete lab solutions including asphalt viscosity tester, asphalt rutting tester, geotextile permeability tester, low-temperature flexibility tester and concrete/cement test equipment, covering raw material detection for road, water conservancy and construction engineering projects

Can you customize fixtures or test machines based on our special test requirements? How about after-sales service and warranty?

We provide non-standard customization of test equipment and customized fixture clamps according to customers’ specimen size and test standards. All our testing machines enjoy 12-month factory warranty; overseas customers get remote online debugging guidance, spare parts supply and technical operation training. Our products have been exported to over 70 countries globally

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Does your pipe pressure burst testing machine control test temperature automatically? What’s its main application?

Yes, the constant-temperature circulating system keeps stable test environment during long-time hydrostatic resistance and instant burst pressure measurement of thermoplastic pipes. It complies with GB6111 standard and serves raw material inspection, new product R&D for plastic pipe manufacturers, third-party testing labs and university laboratories.

What kinds of pipes fit your ring stiffness tester? Can it do long-term creep testing?

This equipment is designed for HDPE, PVC corrugated pipes, plastic drainage pipes and various plastic tubular products. Apart from ring stiffness, ring flexibility and flattening tests, it supports continuous long-term creep tests up to 1000 hours (42 days) as required by industry specifications, widely used for pipe factories and construction quality inspection institutes.

What test items can your WDW series computer-controlled electronic universal testing machine complete? Which international standards can it meet?

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Customer Reviews

European Plastic Pipe Manufacturer｜Purchase: Ring Stiffness & Hydrostatic Burst Tester

From Thomas Bennett, Quality Director, UK plastic pipe factory

2026.06.05

★★★★★

“We have purchased two sets of pipe testing equipment from Laibote (Tianjin) for 18 months. The ring stiffness and hydrostatic burst testing machines run stably for daily batch inspection, test data matches ISO standard requirements precisely, and the intelligent test software is easy for our operators to master. Their after-sales team offers timely remote technical guidance whenever we have operational problems, spare parts supply is efficient. We have arranged a second bulk order for our new production workshop and will recommend Laibote’s testing machines to our industry partners across Europe.”

Middle East Construction Lab｜Purchase: Universal Electronic Testing Machine & Geotextile Test Equipment

From Mohamed Kareem, Lab Manager, UAE third-party construction inspection institute

2026.06.05

★★★★★

“We compared multiple testing equipment brands from Europe and China before cooperating with Laibote. Their WDW universal tester and full-set geotextile testing instruments meet local construction testing standards perfectly. Custom fixtures tailored per our specimen specifications save much testing time. Pre-sale technical communication was patient and professional; engineers provided online operation training after goods arrived. Stable machine performance greatly improves our laboratory’s detection efficiency, we are satisfied with cost performance and overall service.”

Southeast Asia Rubber & Polymer Factory｜Purchase: Vicat Softening Point & Tensile Testing Machine

From Tanaka Hiroshi, R&D Supervisor, Indonesia rubber materials enterprise

2026.06.05

★★★★★

“Laibote’s Vicat softening point tester and electronic tensile machine have been applied to our raw material incoming inspection and new formula development for over one year. High testing accuracy effectively controls our product defect rate. What impresses us most is their responsive after-sale service; technical staff reply our troubleshooting requests within 24 hours even for time zone differences. Compared with expensive European brands, Laibote’s equipment balances quality and price excellently, we plan to expand procurement of auxiliary testing instruments next quarter.”

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Material Smoke Toxicity Grading Test Apparatus

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