TN11108 Fogging Tester

INTRODUCTION

Fogging Tester is professionally designed for the fogging characteristics evaluation of volatile constituents of decorating materials used in cars and aircrafts, e.g. plastic articles, polyurethane, textiles, leather, adhesives, nonwovens and thermal forming elastomers at high temperature conditions. It also could be used for the fogging phenomenon test of high intensity discharge (HID) headlamps of cars.

PRINCIPLE

The preconditioned specimen is heated and evaporates in the beaker; the volatile constituents condense on the glass plate or aluminum foil treated in cooling chamber. Take off the glass plate or aluminum foil when the condensation process is finished. The fogging characteristics could be obtained by measuring condensed constituent weight and fogging value on the glass plate or aluminum foil and comparing with the data before condensation process.

THREE TEST METHODS

- Gloss Method 

The specimen is heated in the beaker and its volatile constituents are condensed on the cooling glass plate. The fogging value could be obtained by calculating and comparing the gloss values occurred before and after condensation process.

- Haze Method 

The specimen is heated in the beaker and its volatile constituents are condensed on the cooling glass plate. The fogging value of the specimen could be obtained by calculating and comparing the fogging values occurred before and after condensation process.

- Weighing Method 

The specimen is heated in the beaker and its volatile constituents are condensed on the cooling aluminum foil. The fogging value - the weight of condensed constituents could be obtained by analyzing the weight changes of aluminum foil occurred before and after condensation process.

Instrument Structure :

The instrument mainly consists of constant high-temperature bath, constant low-temperature bath, cooling plate, beaker, glass plate, meter, sample cutter and other accessories, through which it can perform the processes of sampling, heating, condensation and test.

Operation Process :

Prepare specimens-----switch on high and low temperature baths-----clean beakers and glass plates------place specimens----place glass plate or aluminum foil-----place cooling chamber-----perform test for a specified period of time----take off glass plate or aluminum foil and place certain time----measure the gloss value, fogging value of glass plate or weight value of aluminum foil------compare the data and obtain test results

TECHNICAL PARAMETERS

1.Temperature range of High-Temperature Bath : room temperature~150 °C(room temperature ~ 280°C is optional)

2.Accuracy : ±0.1 °C (150 °C)

3.Temperature range of Low-Temperature Bath : 0~100 °C

4.Accuracy : ±0.1 °C

5.Size of High-Temperature Bath : 670 mm (L) × 490 mm (W)× 540 mm (H)

6.Size of Low-Temperature Bath : 400 mm (L) × 220 mm (W)× 520 mm (H)

7.Net weight of High-Temperature Bath : 32 kg (except the weight of heat conducting medium)

8.Net weight of Low-Temperature Bath : 15 kg (except the weight of heat conducting medium)

9.Power supply : AC220V,50Hz,2000W

STANDARDS

ISO 17071,QB/T 2728,DIN 75201,ISO 6452,BS EN 14288, PV 3920,PV3015

CONFIGURATION

Mainframe, Constant Temperature Control Device, Gloss Meter, Sample Clamp Ring, Beaker, Fluorine Rubber O-ring, Rubber Fixing Ring, Rectangular Glass Plate, Round Glass Plate, Aluminum Foil, Round Sample Cutter of Aluminum Foil, Lid, Stand of Glass Plate, Round Sample Cutter, DIDP,DOP ,Haze Meter, Analytical Balance(0.01 mg),Heating Fluid,and Accessory Stand