GB/T 39717-2020Ceramic flat membrane for water treatment (English PDF)

1 Scope

This standard specifies the terms and definitions, classification, specifications and markings, technical requirements, inspection methods, inspection rules,

Marking, packaging, transportation and storage:

This standard applies to ceramic membranes for water treatment, and other ceramic membranes for liquid separation can also be implemented with reference to this standard:

2 Normative references

The following documents are indispensable for the application of this document: For dated reference documents, only the dated version applies to this article

Pieces: For undated references, the latest version (including all amendments) applies to this document:

GB/T 1965 Test method for bending strength of porous ceramics

GB/T 1970 Test method for acid and alkali corrosion resistance of porous ceramics

GB/T 3810:2 Ceramic tile test method Part 2: Inspection of size and surface quality

GB/T 6682 Analytical laboratory water specifications and test methods

GB/T 32361 Separation membrane pore size test method bubble point and average flow method

DZ/T 0276:6 Test procedure for physical and mechanical properties of rocks Part 6: Rock hardness test

3 Terms and definitions

The following terms and definitions apply to this document:

3:1

Ceramic flatmembrane

A ceramic plate composed of a ceramic support with a hollow channel structure and a separation membrane layer:

3:2

Purewaterflux

Under certain temperature and transmembrane pressure difference, the volume of pure water passing through a unit area of the membrane per unit time:

4 Classification, specifications and marking

4:1 Classification

Ceramic membranes are classified according to the nominal pore size, and are divided into: 0:05µm, 0:1µm, 0:2µm, 0:5µm and other types:

4:2 Common specifications

The appearance of the ceramic diaphragm is shown in Figure 1: