GB/T 1463-2026 Test methods for density and relative density of fiber reinforced plastics 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 1463-2026
Test methods for density and relative density of fiber reinforced plastics
纤维增强塑料密度和相对密度试验方法
Issue date: 2026-01-28 Implementation date: 2027-02-01
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 Principle of the Method
5 Apparatus
6 Materials
7 Test Specimens
8 Test Procedure
9 Calculation
10 Test Results
11 Test Report
Test method for density and relative density of fibre reinforced plastics
1 Scope
This document specifies the principle of the method, apparatus, materials, test specimens, test procedure, calculation, test results and test report for the determination of density and relative density of fibre reinforced plastics using the buoyancy method and the geometrical method.
This document is applicable to the determination of density and relative density of fibre reinforced plastics. The buoyancy method is applicable to materials with weak hygroscopicity, while the geometrical method is applicable to materials with strong hygroscopicity or porous materials. For the buoyancy method, when water is selected as the immersion liquid, it is applicable to test specimens of fibre reinforced plastics with a density greater than 1000 kg/m³ that are not affected by water; when a non-aqueous solvent is selected as the immersion liquid, it is applicable to test specimens with a density less than 1000 kg/m³ or those greatly affected by water.
2 Normative References
The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition (including any amendments) applies.
GB/T 1446, General principles for test methods of properties of fibre reinforced plastics
GB/T 3961, Fibre reinforced plastics terminology
GB/T 6682, Water for analytical laboratory use — Specification and test methods
3 Terms and Definitions
For the purposes of this document, the terms and definitions given in GB/T 3961 apply.
4 Principle of the Method
4.1 Buoyancy Method
According to Archimedes' principle, the volume of the test specimen is calculated based on buoyancy. The density of the test specimen is obtained by dividing its mass in air by its volume.
4.2 Geometrical Method
Prepare a test specimen with a regular geometric shape, measure its mass, and calculate its volume using measured dimensions of the test specimen. The density of the test specimen is obtained by dividing its mass by its volume.
5 Apparatus
5.1 Buoyancy Method
5.1.1 Balance, with a division value of 0.0001 g.
5.1.2 Upper weighing pan, for measuring the mass of the test specimen in air.
5.1.3 Immersion container, beaker or other wide-mouth container, for holding the immersion liquid and immersing the test specimen.
5.1.4 Measuring device, using a mesh pan (provided with the balance density kit) as shown in Figure 1a), or using a metal wire (diameter not greater than 0.125 mm) as shown in Figure 1b).
5.1.5 Thermometer, accurate to 0.1 °C.
5.1.6 Density bottle, with a capacity of 25 mL or 50 mL.
5.2 Geometrical Method
5.2.1 Balance, with a division value of 0.001 g.
5.2.2 Vernier calliper, with an accuracy of 0.01 mm.
6 Materials
6.1 Distilled or deionised water, conforming to the requirements of grade 3 water in GB/T 6682, shall be boiled and cooled to adequately remove air bubbles.
6.2 Non-aqueous solvent. The solvent used shall not dissolve, swell or otherwise affect the test specimen, but shall adequately wet it, and shall have a density lower than that of the test specimen. Ethanol is recommended.
Standard
GB/T 1463-2026 Test methods for density and relative density of fiber reinforced plastics (English)
Standard No.
GB/T 1463-2026
Status
to be valid
Language
English
File Format
PDF
Word Count
6000 words
Translation Price(USD)
180.0
Implemented on
2026-12-1
Delivery
via email in 1~3 business day
Detail of GB/T 1463-2026
Standard No.
GB/T 1463-2026
English Name
Test methods for density and relative density of fiber reinforced plastics
GB/T 1463-2026 Test methods for density and relative density of fiber reinforced plastics 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 1463-2026
Test methods for density and relative density of fiber reinforced plastics
纤维增强塑料密度和相对密度试验方法
Issue date: 2026-01-28 Implementation date: 2027-02-01
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 Principle of the Method
5 Apparatus
6 Materials
7 Test Specimens
8 Test Procedure
9 Calculation
10 Test Results
11 Test Report
Test method for density and relative density of fibre reinforced plastics
1 Scope
This document specifies the principle of the method, apparatus, materials, test specimens, test procedure, calculation, test results and test report for the determination of density and relative density of fibre reinforced plastics using the buoyancy method and the geometrical method.
This document is applicable to the determination of density and relative density of fibre reinforced plastics. The buoyancy method is applicable to materials with weak hygroscopicity, while the geometrical method is applicable to materials with strong hygroscopicity or porous materials. For the buoyancy method, when water is selected as the immersion liquid, it is applicable to test specimens of fibre reinforced plastics with a density greater than 1000 kg/m³ that are not affected by water; when a non-aqueous solvent is selected as the immersion liquid, it is applicable to test specimens with a density less than 1000 kg/m³ or those greatly affected by water.
2 Normative References
The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition (including any amendments) applies.
GB/T 1446, General principles for test methods of properties of fibre reinforced plastics
GB/T 3961, Fibre reinforced plastics terminology
GB/T 6682, Water for analytical laboratory use — Specification and test methods
3 Terms and Definitions
For the purposes of this document, the terms and definitions given in GB/T 3961 apply.
4 Principle of the Method
4.1 Buoyancy Method
According to Archimedes' principle, the volume of the test specimen is calculated based on buoyancy. The density of the test specimen is obtained by dividing its mass in air by its volume.
4.2 Geometrical Method
Prepare a test specimen with a regular geometric shape, measure its mass, and calculate its volume using measured dimensions of the test specimen. The density of the test specimen is obtained by dividing its mass by its volume.
5 Apparatus
5.1 Buoyancy Method
5.1.1 Balance, with a division value of 0.0001 g.
5.1.2 Upper weighing pan, for measuring the mass of the test specimen in air.
5.1.3 Immersion container, beaker or other wide-mouth container, for holding the immersion liquid and immersing the test specimen.
5.1.4 Measuring device, using a mesh pan (provided with the balance density kit) as shown in Figure 1a), or using a metal wire (diameter not greater than 0.125 mm) as shown in Figure 1b).
5.1.5 Thermometer, accurate to 0.1 °C.
5.1.6 Density bottle, with a capacity of 25 mL or 50 mL.
5.2 Geometrical Method
5.2.1 Balance, with a division value of 0.001 g.
5.2.2 Vernier calliper, with an accuracy of 0.01 mm.
6 Materials
6.1 Distilled or deionised water, conforming to the requirements of grade 3 water in GB/T 6682, shall be boiled and cooled to adequately remove air bubbles.
6.2 Non-aqueous solvent. The solvent used shall not dissolve, swell or otherwise affect the test specimen, but shall adequately wet it, and shall have a density lower than that of the test specimen. Ethanol is recommended.
