GB 46312-2025 Protective clothing—Protective clothing for sandblasting operations English, Anglais, Englisch, Inglés, えいご
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ICS 13.340.10
CCS C73
People's Republic of China National Standard
GB 46312-2025
Protective clothing — Protective clothing for sandblasting operations
Issued on August 29, 2025
Implemented on September 1, 2026
Issued by
State Administration for Market Regulation
Standardization Administration of China
Contents
Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Classification and styles
5 Requirements
6 Test methods
7 Marking and manufacturer's information
Appendix A (Informative) Examples of sandblasting protective clothing
Appendix B (Normative) Test method for flame self-extinguishing performance of fabrics
Appendix C (Normative) Test method for sandblasting protection performance
Appendix D (Normative) Practical performance evaluation movements
References
Protective clothing — Protective clothing for sandblasting operations
1 Scope
This document specifies the classification, styles, requirements, marking, and manufacturer's information for protective clothing for sandblasting operations, and describes test methods.
This document is applicable to protective clothing designed to protect the operator's whole or partial body from abrasives and injuries during sandblasting operations.
This document does not apply to protective clothing for steam jet, liquid jet, and flame jet operations.
2 Normative references
The following documents contain provisions which, through reference in this text, constitute essential provisions of this document. For dated references, only the edition cited applies; for undated references, the latest edition (including any amendments) applies.
GB/T 3917.3 Textiles — Determination of tearing force of fabrics — Part 3: Tearing force of trapezoid-shaped specimens
GB/T 3923.1 Textiles — Tensile properties of fabrics — Part 1: Determination of breaking force and elongation at break (Strip method)
GB/T 5455 Textiles — Burning behavior — Determination of afterflame, afterglow, and char length for vertically oriented specimens
GB 6220-2023 Respiratory protection — Long tube respirators
GB 12014-2019 Protective clothing — Electrostatic protective clothing
GB/T 12903 Terms for personal protective equipment
GB/T 13773.1 Textiles — Seam properties of fabrics and fabrics assemblies — Part 1: Determination of seam strength (Sampling method)
GB 20097 General technical specifications for protective clothing
GB/T 20654 Protective clothing — Mechanical properties — Test methods for puncture resistance and dynamic tear resistance
GB/T 23465-2009 Respiratory protective devices — Practical performance evaluation
GB 24539-2025 Protective clothing — Chemical protective clothing
GB 24541-2022 Hand protection — Mechanical risk protective gloves
FZ/T 81007 Single and double-layer garments
3 Terms and definitions
Terms and definitions as defined in GB/T 12903 and the following apply to this document.
3.1 Protective clothing for sandblasting operations
Protective clothing produced in specified styles and structures to provide safety protection for operators during sandblasting operations.
3.2 Sandblasting operations
The process of high-speed projection of abrasives onto workpieces for surface treatment.
Note 1: Through the impact and abrasion of abrasives on the workpiece surface, the workpiece surface achieves the required cleanliness and roughness, thereby improving the mechanical properties of the workpiece.
Note 2: Sandblasting operations involved in processes such as rust removal, casting, and spraying.
4 Classification and styles
Protective clothing for sandblasting operations shall be classified according to Table 1. The styles of protective clothing for sandblasting operations are shown in Appendix A.
Table 1 Classification of protective clothing for sandblasting operations
5 Requirements
5.1 General requirements
5.1.1 The size of protective clothing for sandblasting operations shall be set according to GB 20097. If it exceeds the range of GB 20097, it shall be adjusted according to the grade difference.
5.1.2 The finished product size measurement shall comply with the allowable deviation of the specified size as stipulated in FZ/T 81007.
5.1.3 The physical and chemical performance indicators of the fabric for protective clothing for sandblasting operations shall meet the requirements of Table 2.
Table 2 Physical and chemical performance of fabrics
5.1.4 When exposed to liquid jetting, the contaminated area formed by liquid penetration on the indicator clothing shall be less than 3 times the standard contaminated area.
5.1.5 The seam strength of finished clothing shall be greater than or equal to 200 N.
5.1.6 The finished clothing shall not show holes or tears when impacted by abrasives.
5.2 Design and practical performance requirements for Type B, C, and D sandblasting protective clothing
5.2.1 In addition to meeting the requirements of 5.1, Type B, C, and D sandblasting protective clothing shall pass the practical performance test without defects that hinder the operator from completing normal operations, and shall have a dust-proof structural design.
5.2.2 All openings on Type B, C, and D sandblasting protective clothing shall have a dust-proof structure, and the protective clothing shall have no pockets.
5.2.3 Type B, C, and D sandblasting protective clothing shall have ventilation designs. In the practical performance evaluation, when the tester is in a squatting position with arms bent, the supplied air shall be able to flow through the openings of the sleeves and legs of the clothing or through the set valves.
5.2.4 The hoods provided with Type B, C, and D sandblasting protective clothing shall meet the requirements of clauses 5.3 and 5.4 of GB 6220-2023.
6 Test methods
6.1 The breaking strength of the fabric shall be tested according to the method specified in GB/T 3923.1.
6.2 The tearing strength of the fabric shall be tested according to the method specified in GB/T 3917.3.
6.3 The puncture resistance of the fabric shall be tested according to the method specified in GB/T 20654.
6.4 The abrasion resistance of the fabric shall be tested according to the method specified in GB 24541-2022, with 4 specimens taken.
6.5 The flame self-extinguishing performance of the fabric shall be tested according to the method specified in Appendix B.
6.6 The point-to-point resistance of the fabric shall be tested according to the method specified in Appendix A of GB 12014-2019.
6.7 The liquid jetting protection performance of finished clothing shall be tested according to Method 1 specified in Appendix C of GB 24539-2025.
6.8 The seam strength of finished clothing shall be tested according to the method specified in GB/T 13773.1. Five specimens shall be cut from the seam parts of the clothing, with the seam direction at 90° to the force direction. The lowest value shall be taken as the test result.
6.9 The sandblasting protection performance of finished clothing shall be tested according to the method specified in Appendix C.
6.10 The practical performance evaluation of finished clothing shall be tested according to the method specified in GB/T 23465-2009, and the content of practical performance evaluation movements shall comply with the provisions of Appendix D.
