The detection method of carpet adhesives is mainly divided into the following!

 (1) Small environmental test cabin

  1. Small environmental test cabin

  Small environmental test cabins consist of sealing cabins, air filters, air temperature humidity adjustment control and monitoring systems, air flow, flow regulation control devices, air sampling systems, etc., as shown in Figure 3-6. It is an environment in the analog room, under certain test conditions (temperature, humidity, air flow rate and air exchange rate, etc.), exposes the sample to the cabin, lasting for a certain period of time, harmful gases in the cabin.

    2. Small environmental test cabin test conditions

    Test conditions for small environmental test cabins, mainly including air temperature, relative humidity, air exchange rate, and air flow rate. Specific test conditions should be achieved as follows: air temperature (23 ± 1), air relative humidity (504 1 5)%, air exchange rate 1.0H ~ air flow rate 0.1 ~ 0.3 m / s.

    3. Test sample, packaging and sample preparation

    (1) Sampling

    The samples used in the test should be produced in conventional methods, and the lower machine is not more than 30 days, and the product is extracted in the product of the qualified package.

    When sampling in a volume of the product, the at least L samples are intercepted from the middle of the end 2 m.

    The tuning carpet should be randomly selected from the batch of products; the carpet adhesive should randomly select a barrel from the batch product.

    (2) Packaging

    Rolling the sample into a volume along the coil carpet, tighten the sample with a rope and wrapped in an air intuitive inert package.

    From the selection sample to the package, the time should not exceed LH and should be sent immediately.

    Sample outsourcing tags should be detailed in detail product type, production date, production lot number and production enterprise name.

    (3) Sample

    In order to ensure the accuracy of the carpet sample trial, it should be tested as soon as possible after the inspection sample reaches the laboratory.

    The carpet and carpet liner sample should be at least L00 mm from the edge of the sample, and a sample is intercepted as required, and the material / cabin load ratio is 0.4 / m3.

    The tapered carpet should take the sample in the middle part of the box, which can be representative.

Carpet adhesive sample. The carpet adhesive is applied to the simulator plate (glass plate or stainless steel plate), and the material / cabin load ratio is 0.01 / m3, the coating density (mg / c) is carried out in accordance with the manufacturer's instructions.

    4. Small environmental test cabin test procedure

    (1) The preparation of the preparation test cabin of the test cabin mainly includes the following aspects.

    Cleaning of the test front cabin. First, the inner wall of the test cabin is first cleaned with an alkaline cleaning agent, and then scrub twice with deionized water or distilled water, then dry purification.

    Clean air after purification treatment in the environmental test cabin under test conditions.

    Before the start of the test, the test conditions in the cabin, such as temperature and humidity, airflow velocity, airtightness, and air supply of the cabin, should be lower than the detection limit of the analysis method.

    The test sample should be paved upward in the bulk surface, so that the air air flow is evenly passed from the surface of the sample.

    (2) Test time end test The sample was discharged under test conditions under test conditions of 24 h.