Limiting Oxygen Index Chamber - China

The Limiting Oxygen Index (LOI) fire test is perhaps the most economical and precise quality control test for combustible materials.

Its ease of use together with high levels of precision has made this technique a primary characterization and quality control tool for the plastic materials and electric cable industries.

It is often used in materials specifications and material/product data sheets .

The test assesses the minimum percentage of oxygen in the test atmosphere that is required to marginally support combustion.

The unit has been designed to be compact for efficient use in a standard fume cupboard (or under a simple ventilation hood that we can also supply if required).

The unit gives continuous digital readout of oxygen concentrations in the test atmosphere to facilitate quick settings of test concentration.

Stabilised oxygen percentages are read from the digital readout and no additional flow adjustments are required.

This is a considerable improvement over systems that use analogue gauges or require flow matching and the use of graphs or tables to calculate oxygen concentrations.

This makes the unit as automatic as is feasible.

While many designs of the LOI test apparatus calculate oxygen index based on the flow of oxygen and nitrogen, the unit incorporates a paramagnetic oxygen analyzer for precise measurement of oxygen concentration without the need for calculations and frequent recalibrations.

Features Paramagnetic Oxygen Analyzer for assessing accurate oxygen (± 0.1%) levels.

Glass test chimney: 450 mm x 75 mm

Igniter wand

Automatic flow control gives oxygen level adjustment by turning one single valve.

Digital display of oxygen percentage in atmosphere during test (no calculations needed).

Digital display of temperature of gas mixture entering the test chimney.

Quick loading of sample into test chimney.

Sample holders for both rigid and flexible samples supplied.

One pack of 10 clear PMMA calibration samples (Oxygen Index: 17.4) supplied.

Specification Digital readout for oxygen concentration: +/- 0.1%

Dimensions (mm): 350(W) x 370(D) x 280(H)

Column size (mm): 75 & 100(dia) x 450(H)

Weight (kg): 14

Voltage: 230V 50Hz 1A or 110V 60Hz 2A

Operating Manual: Supplied

Other Service requirements: Bottled O2/N2, Propane

Company Contact:

• Posted By: Qinsun Instruments (Shanghai) Co., Ltd.

• Phone: +862164200566

• Address: No. 2578 Minhang District Gu Dai Road, Shanghai, Shanghai , shanghai , China

• Email:

• Website: https://www.qinsun-lab.com

• Business Description: Qinsun Instruments Co., LTD was founded in 2010, comprised of many experienced engineers and designers standing in the forefront of the industry.
  
  Qinsun specialize in the research and development of high quality lab instrument for textile testing industry.
  
  Our head office in Shanghai and we provide high quality testing instrument and comprehensive service for textile factory, academic research institute and textile lab worldwide.
  
  We have our own textile testing lab.
  
  Our textile testing methods and testing equipment are in the leading position in the industry and have passed the textile testing certification and iso textile testing standards issued by a number of testing.
  
  We always develop the highly sophisticated test instrument which can meet the various demands of the textile industry.
  
  We provide the upfront Micro weathering test equipments with our own brand name QINSUN, such as thermal resistance wet resistance meter, MMT(moisture management tester) etc, and the new functional test instrument include air permeability tester, hydrostatic head tester, thermal protection performance tester, as well as the widely used lab testing equipment such as textile washing color fastness tester, abrasion tester, pilling tester, rubbing color fastness tester, ironing tester and perspiration tester.
  
  For the laboratory requirements, we also bring forth the new practical test instruments.
  
  Qinsun products include: fabric test equipment, Textile Fabric Tester, fiber tester, yarn tester, carpet tester, non-woven fabric tester, toy tester, leather tester, automotive material test equipment and others.