GB/T 43300-2023 (English Version)

Standard No.: GB/T 43300-2023
Language: Chinese, Available in English version
Release Date: 2023
Published By: General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
Latest: GB/T 43300-2023

Scope: This document describes the test method for determining the pure water flux of ceramic flat membranes at room temperature. This document is applicable to the determination of the pure water flux of ceramic flat membranes

Introduction

Interpretation of GB/T 43300-2023 National Standard of the People's Republic of China

1. Background and Significance of the Standard

GB/T 43300-2023 "Test Method for Pure Water Flux of Ceramic Flat Membranes" is the first national standard for the determination of pure water flux of ceramic flat membranes in my country, filling the gap in the relevant field in China. The standard is under the jurisdiction of the National Technical Committee for Standardization of Industrial Ceramics and was jointly drafted by a number of enterprises and scientific research institutions. It has broad industry representativeness and authority.

2. Comparison of standard frameworks

Standard dimensions	GB/T 43300—2023	Compared with international standards
Scope of application	Determination of pure water flux of ceramic flat membrane	ISO/TC 281, etc.
Definition of terms	Definitions of ceramic flat membrane and pure water flux are clarified	Consistent with international terms
Test methods	Specify flow measurement under constant temperature and vacuum conditions	Slightly simplified

3. Professional term explanation and practical application cases

Ceramic Flat Membrane: It is composed of a ceramic support with a hollow pore structure and a separation membrane layer, and is widely used in the field of water treatment.

Pure Water Flux: Under specific conditions, the amount of pure water passing through a unit area of the membrane per unit time. The calculation formula is:

$$ F_{\mathrm{w}} = \frac{f}{2abt} $$ Where f is the cumulative water flow rate (mL), a and b are the effective length and width of the sample (mm), and t is the suction time (h).

Actual application case:An environmental protection company used this standard to test the new ceramic flat membrane. The results showed that under the condition of 23±2°C, the average value of pure water flux reached the expected index, verifying the scientificity and operability of the standard.

4. Analysis of technological evolution

With the development of membrane technology, ceramic flat membranes have gradually moved from early industrial tests to standardized applications. GB/T 43300—2023 reflects the progress of industry technology in terms of test conditions and equipment accuracy, especially in flow measurement and constant temperature control.

5. Implementation suggestions

Standardization training:Detailed interpretation and practical training of standard clauses for relevant personnel.
Equipment calibration:Ensure that instruments such as flow meters and pressure gauges meet the accuracy requirements.
Quality control:Establish a data recording and deviation analysis mechanism during the test process.

GB/T 43300-2023 Referenced Document

GB/T 1226 General pressure gauge
GB/T 21389 Vernier,dial and digital display calipers
GB/T 6682 Water for analytical laboratory use.Specification and test methods

GB/T 43300-2023 history

2023 GB/T 43300-2023 Ceramic flat membrane pure water flux test method