Product Name: formaldehyde test chamber

Product use

The equipment is mainly used to study the change law of VOC and aldehydes and ketones in wood products, furniture, floors, carpets, building decoration materials and related light industrial products, detect the VOC release in samples and classify the tested products; According to the indoor pollutant data or prediction model, the comprehensive environmental index evaluation of indoor air quality and the gas sampling for the determination of volatile organic compounds (VOC) and formaldehyde emissions in furniture are carried out.

2、 Executive standard

Gb18580-2017 formaldehyde emission limits of wood-based panels and their products for interior decoration materials

GB18584 limits of harmful substances in interior decoration materials and wood furniture (approved draft)

Gb18587-2001 emission limits of harmful substances of carpet, carpet liner and carpet adhesive for interior decoration materials

ASTM D6007-02 Standard Test Method for determination of formaldehyde concentration in gases emitted from wood products in small-scale environmental chamber

HJ / T 571-2010 technical requirements for environmental labeling products wood based panels and their products

Env13419-1 determination of VOCs release from construction products Part 1: method of release test environment box

ISO 16000-9-2011 indoor air - Part 9: Determination of volatile organic compounds emitted from building products and household decoration - test chamber method

Reference standard

ASTMD 5116、ASTMD 6330、ASTMD 6670、LY/T1612、ASTM E 1333、ENV 717-1

ANSI/BIFMA M7.1-2011、LY/T1980-2011、

3、 Main technical indicators and performance

temperature

Adjustment range: + 10 ～ + 70 ℃ (normal operation), high temperature cleaning temperature: + 80 ℃～ 250 ℃

Adjustment accuracy: ± 0.5 ℃, temperature control fluctuation: ± 0.5 ℃, temperature uniformity: ± 0.5 ℃

humidity

Adjustment range: 30% ~ 80%

Adjustment accuracy: ± 1%, humidity control fluctuation: ± 2%, humidity uniformity: ± 2%

Ventilation

(0.2 ~ 2) m3 / h (ventilation rate 0.2 ~ 2 times / h), accuracy ± 0.01 m3 / h

Background concentration and air supply concentration in the test cabin

Formaldehyde content ≤ 0.006mg/m3; TVOC content ≤ 0.02mg/m3; Content of each monomer (mainly benzene, toluene and xylene) ≤ 0.002mg/m3

Airtightness

Under the positive pressure of 1kPa, the air leakage rate in the cabin is ≤ 0.5% × Cabin capacity / min, air leakage rate in the cabin ≤ 5% × Oxygen supply rate

Adsorption rate

When the temperature in the cabin is (23 ± 2) ℃ and the relative humidity is (45 ± 5)%, the adsorption rate of the climate cabin is less than 20%

Differential pressure control

Adjustment range: 10.0pa ± 5pa, keep the cabin under positive pressure in real time

Test the air uniformity in the cabin

When the climate chamber is empty, the relative deviation of the concentration value of the reference standard between any two sampling points is ≤ 5%

Air velocity in the cabin

In the horizontal direction, the horizontal velocity of the whole air is maintained at (0.1-0.5) m / s, and the display accuracy is ± 0.01m/s

rate of recovery

The recovery of toluene or n-dodecane is greater than 80%

Structure

Jacketed structure, effective volume of environmental tank test (1 ± 0.02) M3

Material of inner tank and air circuit

The inner wall of the test chamber, pipes and accessories (such as valves, joints, circulating fans, etc.) shall be made of mirror stainless steel; Sealing material: no pollution, emission and adsorption materials

Insulation box

The outer wall is A3 pressure groove reinforced electrostatic spraying color steel plate, white spraying. Inner wall: 304 stainless steel plate is welded integrally, with excellent thermal insulation performance

Measurement and control system

The imported high-resolution intelligent touch screen controller and integrated industrial control computer are adopted. The display / setting of operating time, temperature, humidity, pressure and flow can be set through the touch screen. It supports data display, download, storage and curve display. The sensors and electronic control systems are all imported brands to ensure the quality and stable operation of the equipment

Equilibrium time

When the test chamber is running, the temperature and humidity stability time is less than 60 minutes

noise control

Under normal operating conditions, lower than 65dB

Product Name: VOC formaldehyde test chamber

Product use

The equipment is mainly used to study the change law of VOC and aldehydes and ketones in wood products, furniture, floors, carpets, building decoration materials and related light industrial products, detect the VOC release in samples and classify the tested products; According to the indoor pollutant data or prediction model, the comprehensive environmental index evaluation of indoor air quality and the gas sampling for the determination of volatile organic compounds (VOC) and formaldehyde emissions in furniture are carried out.

2、 Executive standard

Gb18580-2017 formaldehyde emission limits of wood-based panels and their products for interior decoration materials

GB18584 limits of harmful substances in interior decoration materials and wood furniture (approved draft)

Gb18587-2001 emission limits of harmful substances of carpet, carpet liner and carpet adhesive for interior decoration materials

ASTM D6007-02 Standard Test Method for determination of formaldehyde concentration in gases emitted from wood products in small-scale environmental chamber

HJ / T 571-2010 technical requirements for environmental labeling products wood based panels and their products

Env13419-1 determination of VOCs release from construction products Part 1: method of release test environment box

ISO 16000-9-2011 indoor air - Part 9: Determination of volatile organic compounds emitted from building products and household decoration - test chamber method

Reference standard

ASTMD 5116、ASTMD 6330、ASTMD 6670、LY/T1612、ASTM E 1333、ENV 717-1

ANSI/BIFMA M7.1-2011、LY/T1980-2011、

3、 Main technical indicators and performance

temperature

Adjustment range: + 10 ～ + 70 ℃ (normal operation), high temperature cleaning temperature: + 80 ℃～ 250 ℃

Adjustment accuracy: ± 0.5 ℃, temperature control fluctuation: ± 0.5 ℃, temperature uniformity: ± 0.5 ℃

humidity

Adjustment range: 30% ~ 80%

Adjustment accuracy: ± 1%, humidity control fluctuation: ± 2%, humidity uniformity: ± 2%

Ventilation

(0.2 ~ 2) m3 / h (ventilation rate 0.2 ~ 2 times / h), accuracy ± 0.01 m3 / h

Background concentration and air supply concentration in the test cabin

Formaldehyde content ≤ 0.006mg/m3; TVOC content ≤ 0.02mg/m3; Content of each monomer (mainly benzene, toluene and xylene) ≤ 0.002mg/m3

Airtightness

Under the positive pressure of 1kPa, the air leakage rate in the cabin is ≤ 0.5% × Cabin capacity / min, air leakage rate in the cabin ≤ 5% × Oxygen supply rate

Adsorption rate

When the temperature in the cabin is (23 ± 2) ℃ and the relative humidity is (45 ± 5)%, the adsorption rate of the climate cabin is less than 20%

Differential pressure control

Adjustment range: 10.0pa ± 5pa, keep the cabin under positive pressure in real time

Test the air uniformity in the cabin

When the climate chamber is empty, the relative deviation of the concentration value of the reference standard between any two sampling points is ≤ 5%

Air velocity in the cabin

In the horizontal direction, the horizontal velocity of the whole air is maintained at (0.1-0.5) m / s, and the display accuracy is ± 0.01m/s

rate of recovery

The recovery of toluene or n-dodecane is greater than 80%

Structure

Jacketed structure, effective volume of environmental tank test (1 ± 0.02) M3

Material of inner tank and air circuit

The inner wall of the test chamber, pipes and accessories (such as valves, joints, circulating fans, etc.) shall be made of mirror stainless steel; Sealing material: no pollution, emission and adsorption materials

Insulation box

The outer wall is A3 pressure groove reinforced electrostatic spraying color steel plate, white spraying. Inner wall: 304 stainless steel plate is welded integrally, with excellent thermal insulation performance

Measurement and control system

The imported high-resolution intelligent touch screen controller and integrated industrial control computer are adopted. The display / setting of operating time, temperature, humidity, pressure and flow can be set through the touch screen. It supports data display, download, storage and curve display. The sensors and electronic control systems are all imported brands to ensure the quality and stable operation of the equipment

Equilibrium time

When the test chamber is running, the temperature and humidity stability time is less than 60 minutes

noise control

Under normal operating conditions, lower than 65dB