GB 26539-2011Antistatic ceramic tiles (English PDF)

4.1 General requirements for ceramic tiles

The product should comply with GB/T 4100's.

4.2 Anti-static properties

4.2.1 Point resistance. 5 × 104ohm ~ 1 × 109ohm.

4.2.2 Surface resistivity. 5 × 104ohm ~ 1 × 109ohm.

4.2.3 Volume resistivity. 5 × 104ohm ~ 1 × 109ohm.

4.3 Durability

Tested in accordance with the provisions of 5.3, the test shall meet the defender electrostatic properties in 4.2.2 and 4.2.3.

4.4 Non-slip floor tiles

The average terrestrial products limit the angle of inclination of not less than 12 °.

4.5 Limit of radionuclides

Shall comply with GB 6566 in Class A requirements.

5.1 General requirements for ceramic tiles

General requirements for ceramic tile method according to GB/T 4100 regulations.

5.2 Anti-static properties

5.2.1 Test Conditions

5.2.1.1 Insulation test table

Surface resistance and volume resistivity greater than 1 × 1013ohm and at least greater than the sample size 10cm flat surface.

5.2.1.2 Test environmental conditions

Temperature. 20 °C ~ 25 °C. Relative humidity less than 40% RH.

5.2.1.3 Test Instruments

Range to meet the 1 × 104ohm ~ 1 × 1010ohm, an accuracy of ± 5% of the insulation resistance tester, or in compliance with the test requirements of similar instruments.

5.2.2-point resistance test method

5.2.2.1 Test electrodes

Electrodes made of stainless steel or copper; column electrode diameter 63mm ± 3mm; contact end electrode material is a conductive rubber hardness of (60 ±

10) (Shore A grade), the thickness of 6mm ± 1mm, the volume resistivity less than 500ohm; single-electrode weight 2.25kg ~ 2.5kg.

5.2.2.2 Sample

Use 5 whole tiles as a test sample.

Note. Not available for less than 400mm diagonal products.

5.2.2.3 Test Procedure

The sample was washed with water with a pH value of ~7, remove residue and dirt on the product, and the sample at 110 °C ± 5 °C oven after cleaning Bake 8h after removing the specimen was placed under 5.2.1.2 test environment conditions for at least 48h after the test.

As shown in Figure 1, the sample face up and put it down on the table insulation test, electrodes are placed on the test sample diagonal positions on the surface Uneven sample should be placed a layer of conductive sponge between the electrode and the sample. The distance between the electrodes is 300mm (in front of electrode placement, electrical Pole surfaces should be clean-containing lower amounts of cotton cloth dipped in a concentration of at least 70% ethyl alcohol solvent wipe clean and dry). On Resistance Tester, 100V test voltage is applied for at least 10min, until the reading is stable resistance readings recorded. Each sample test two pairs Point resistance value moldings.

Report test results for each block diagonal two-point samples measured resistance value.

Millimeters

a) front view

b) a plan view

1-point resistance test schematic

5.2.3 Surface resistance and volume resistivity testing methods

5.2.3.1 Test electrodes

70mm concentric ring electrode test consists of two electrodes made of a conductive material and a diameter of 85mm to 4mm thick discoid reverse Electrodes (as shown in Figure 2). Electrode material should be corrosion resistant under the measurement conditions, it does not react with the material being tested.

5.2.3.2 Sample

Take at least two whole bricks sample preparation, of the sample 12 side length of not less than 150mm × 150mm.

5.2.3.3 Sample Processing

5.2.3.3.1 Sample pretreatment

The pH value of the water to wash ~7 good sample preparation, remove residue and dirt on the product, and the sample was cleaned with a chamois wipe dry. Into the high-temperature furnace temperature was raised from room heating rate of 5 °C/min ± 1 °C/min, raised to 550 °C ± 10 °C to maintain 1h, with After the furnace to cool and set aside.

5.2.3.3.2 Sample pretreatment

Sample preparation process is as follows.

a) Soak. A sample specified in Table 1 were soaked treated separately.

Table 1 Surface resistance and volume resistivity test sample pretreatment method

Number of pretreatment temperature of the sample group number 1 at a concentration of 0.03 volume fraction of HCl solution soak 24h 2 at a concentration of 100g/L citric acid solution to soak 24h 3 sodium hypochlorite solution 20mg/L soaking 24h at a concentration of 4 ammonium chloride solution 100g/L of concentration for 24h at 5 48h immersed in distilled water

6.1 Inspection classification

Inspection is divided into the factory inspection and type testing.

6.2 Factory inspection

6.2.1 Test items

Factory inspection items include 4.1 relates to surface quality, dimensional tolerances, water absorption and other projects.

6.2.2 Sampling Plan

Factory inspection project for surface quality full inspection, the dimensional tolerances absorption and sample tests. The same species with the specifications of the product, the size of allowable deviation of the number of test samples shall be not less than 10%, the water absorption of sampling inspection at least once every 8h.

6.2.3 Decision rule

Upon examination required by the project are qualified, then the product is qualified, where there is one or more than one failure, then determine whether the product is not qualified.

6.3 Type inspection

6.3.1 Test items

Type test items include the technical requirements of Chapter 4 of the full project.

6.3.2 Test conditions

When one of the following conditions, type of inspection should be carried out.

a) new product trial, when identified;

B) after the official production, construction, materials, processes have a greater change, it may affect product quality;

c) Product Discontinuance more than six months, the production recovery;

d) factory inspection results are quite different and the last type test results;

e) contract requirements.

Under normal circumstances, at least once a year.

6.3.3 Batch

In the same species, the same size batch of product groups, in order to 3000m2 as a group, the number of dollars is still less than 3000m2.

6.3.4 Sampling Plan

The inspection lot at random at least 12 whole tiles and the area of not less than 1.5m2.

6.3.5 Decision rule

Individual Determination rules. point resistance, surface resistance, volume resistance and durability of the projects where there is one or more than one piece fail, the penalty the project failed; other performance determined in accordance with the relevant standards.

Determination rules. All items are qualified by testing, then determine whether the product is qualified; Where there is one or more than one failure, the penalty Given the product failed.

7.1 Marks and logos

7.1.1 product should be the manufacturer's logo and/or trademarks, logos should be clear and firm.

7.1.2 The product shall have at least the following identification on the packaging.

a) business name, place of origin;

b) the product name, trademark;

c) implementation of the standards;

d) quality mark;

Category e) tiles, water absorption and execute the corresponding appendix GB/T 4100 standards;

f) nominal dimensions and size of the work, modulus (M) or modulus;

g) surface characteristics and, if glazed (GL) or unglazed (UGL), color number, etc;

h) number, production date or production lot.

7.1.3 Quality Certificate

Manufactured products should provide product quality certification. Should include at least the certificate number, manufacturer name, product name, specifications, Production date or production lot, the implementation of standards, and inspection department and inspector signature.

7.2 Installation Instructions

The manufacturer shall provide instructions for use, description of products used in construction methods and requirements, as necessary, explain the use of environmental requirements.

8.1 Packaging

Products should be variety, size, color number packaging respectively. Packaging should be firmly tied tight.

8.2 Transport

Product loading and unloading should be gently, non-wrestling throw, during transportation to avoid collision.

8.3 Storage

Product shall varieties, specifications were neatly stacked color number.