GB/T 2793-2026 Test method for non-volatile content of adhesives English, Anglais, Englisch, Inglés, えいご
This is a draft translation for reference among interesting stakeholders. The finalized translation (passing through draft translation, self-check, revision and verification) will be delivered upon being ordered.
ICS
CCS
National Standard of the People's Republic of China
GB/T 2793 -2026
Test method for non-volatile content of adhesives
胶粘剂不挥发物含量的测定
Issue date: 2026-02-27 Implementation date: 2026-09-01
Issued by the General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China
the Standardization Administration of the People's Republic of China
Contents
Foreword
1 Scope
2 Normative References
3 Terms and Definitions
4 Apparatus
4.1 Oven
4.2 Analytical balance
4.3 Flat bottomed dish
4.4 Spreading tool
4.5 Desiccator
5 Test Procedure
5.1 Pretreatment of test apparatus
5.2 Weighing of test portion
5.3 Pretreatment before heating
5.4 Heating
5.5 Weighing after heating
6 Test Results
7 Precision
7.1 Repeatability limit (r)
7.2 Reproducibility limit (R)
8 Test Report
Annex A (Normative) General test conditions
Determination of non volatile matter content of adhesives
1 Scope
This document describes the method for the determination of non volatile matter content of adhesives.
This document is applicable to the determination of non volatile matter content of liquid adhesives that lose mass under heating conditions. Solid adhesives may use this document for reference. This document is not applicable to the determination of non volatile matter content of radiation curable adhesives and α cyanoacrylate instant adhesives.
2 Normative references
The contents of the following documents constitute essential provisions of this document through normative reference. For dated references, only the edition cited applies. For undated references, the latest edition (including all amendments) applies.
GB/T 2943 Adhesives — Terminology
GB/T 8170 Rules for rounding off of numerical values and expression and judgement of limiting values
3 Terms and definitions
For the purposes of this document, the terms and definitions given in GB/T 2943 apply.
4 Apparatus
4.1 Oven
For samples that may release flammable volatiles, explosion proof equipment shall be used and operation shall be carried out under effective ventilation.
For test temperatures not exceeding 150 °C, the oven shall be capable of maintaining the temperature within ±2 °C of the specified or agreed temperature. For test temperatures exceeding 150 °C, the oven shall be capable of maintaining the temperature within ±3.5 °C of the specified or agreed temperature.
The type of oven shall be selected based on the characteristics of the adhesive sample. For adhesive systems such as phenolic resin adhesives that are prone to skin formation or spattering under strong airflow, a gravity convection oven should be used. For samples that dry primarily by physical means, forced convection may be used.
4.2 Analytical balance
With a readability of 0.1 mg.
4.3 Flat bottomed dish
Made of metal or glass, may be fitted with a lid. The standard flat bottomed dish has an internal diameter of (50 ± 1) mm and an edge height sufficient to prevent sample spillage. If a lid is used, it shall be treated together with the flat bottomed dish throughout the weighing and heating processes, and its mass shall be included.
When a flat bottomed dish with a non standard internal diameter is used, the test portion size shall be calculated according to formula (1).
4.4 Spreading tool
For high viscosity or skin prone adhesive samples, a spreading tool may be used to evenly spread the sample over the bottom of the flat bottomed dish. The spreading tool shall be made of a material that does not react with the adhesive sample and does not decompose at the test temperature (e.g., uncoated stainless steel paper clip, spatula, etc.).
4.5 Desiccator
Fitted with a suitable desiccant.
Standard
GB/T 2793-2026 Test method for non-volatile content of adhesives (English Version)
GB/T 2793-2026 Test method for non-volatile content of adhesives English, Anglais, Englisch, Inglés, えいご
This is a draft translation for reference among interesting stakeholders. The finalized translation (passing through draft translation, self-check, revision and verification) will be delivered upon being ordered.
ICS
CCS
National Standard of the People's Republic of China
GB/T 2793 -2026
Test method for non-volatile content of adhesives
胶粘剂不挥发物含量的测定
Issue date: 2026-02-27 Implementation date: 2026-09-01
Issued by the General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China
the Standardization Administration of the People's Republic of China
Contents
Foreword
1 Scope
2 Normative References
3 Terms and Definitions
4 Apparatus
4.1 Oven
4.2 Analytical balance
4.3 Flat bottomed dish
4.4 Spreading tool
4.5 Desiccator
5 Test Procedure
5.1 Pretreatment of test apparatus
5.2 Weighing of test portion
5.3 Pretreatment before heating
5.4 Heating
5.5 Weighing after heating
6 Test Results
7 Precision
7.1 Repeatability limit (r)
7.2 Reproducibility limit (R)
8 Test Report
Annex A (Normative) General test conditions
Determination of non volatile matter content of adhesives
1 Scope
This document describes the method for the determination of non volatile matter content of adhesives.
This document is applicable to the determination of non volatile matter content of liquid adhesives that lose mass under heating conditions. Solid adhesives may use this document for reference. This document is not applicable to the determination of non volatile matter content of radiation curable adhesives and α cyanoacrylate instant adhesives.
2 Normative references
The contents of the following documents constitute essential provisions of this document through normative reference. For dated references, only the edition cited applies. For undated references, the latest edition (including all amendments) applies.
GB/T 2943 Adhesives — Terminology
GB/T 8170 Rules for rounding off of numerical values and expression and judgement of limiting values
3 Terms and definitions
For the purposes of this document, the terms and definitions given in GB/T 2943 apply.
4 Apparatus
4.1 Oven
For samples that may release flammable volatiles, explosion proof equipment shall be used and operation shall be carried out under effective ventilation.
For test temperatures not exceeding 150 °C, the oven shall be capable of maintaining the temperature within ±2 °C of the specified or agreed temperature. For test temperatures exceeding 150 °C, the oven shall be capable of maintaining the temperature within ±3.5 °C of the specified or agreed temperature.
The type of oven shall be selected based on the characteristics of the adhesive sample. For adhesive systems such as phenolic resin adhesives that are prone to skin formation or spattering under strong airflow, a gravity convection oven should be used. For samples that dry primarily by physical means, forced convection may be used.
4.2 Analytical balance
With a readability of 0.1 mg.
4.3 Flat bottomed dish
Made of metal or glass, may be fitted with a lid. The standard flat bottomed dish has an internal diameter of (50 ± 1) mm and an edge height sufficient to prevent sample spillage. If a lid is used, it shall be treated together with the flat bottomed dish throughout the weighing and heating processes, and its mass shall be included.
When a flat bottomed dish with a non standard internal diameter is used, the test portion size shall be calculated according to formula (1).
4.4 Spreading tool
For high viscosity or skin prone adhesive samples, a spreading tool may be used to evenly spread the sample over the bottom of the flat bottomed dish. The spreading tool shall be made of a material that does not react with the adhesive sample and does not decompose at the test temperature (e.g., uncoated stainless steel paper clip, spatula, etc.).
4.5 Desiccator
Fitted with a suitable desiccant.
