Hand protection - Protective gloves against chemicals and micro-organisms
1 Scope
This document defines the terms and definitions for protective gloves against chemicals and micro-organisms, specifies the technical requirements, labeling and information provided by the manufacturer and describes the test methods.
This document is applicable to protective gloves against chemicals and micro-organisms risks.
2 Normative references
The following documents contain requirements which, through reference in this text, constitute provisions of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
GB/T 23462-2009 Protective clothing - Test method for chemical protective materials to permeation by chemicals
GB 24541-2022 Hand protection - Protective gloves against mechanical risks
GB 42298-2022 Hand protection - General technical specifications
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1
protective gloves against chemicals
gloves that can protect the wearer's hands against chemical injuries
3.2
protective gloves against micro-organisms
protective gloves that can form an effective barrier against micro-organisms (other than viruses), so as to prevent them from penetrating
3.3
degradation
destructive change in one or more properties of protective gloves due to exposure to chemicals
Note: Including peeling, expansion, fragmentation, embrittlement, fading, deformation, hardening, softening, etc.
3.4
penetration
process by which chemicals and/or micro-organisms penetrate the protective gloves at a non-molecular level through defects such as pores, seams and pinholes in the protective glove material
3.5
permeation
process by which chemical molecules are adsorbed by the protective glove material, diffuses in the material and precipitates from the material
3.6
test chemicals
chemicals or mixture of chemicals used to determine the permeation performance of protective glove materials under laboratory conditions
3.7
normalized breakthrough time
time from the beginning of the test until the chemical permeability (permeation quantity) reaches the normalized value
4 Technical requirements
4.1 Protective gloves against chemicals
4.1.1 General
The protective gloves against chemicals shall meet the technical requirements of general protection (4.1.2), penetration resistance (4.1.3), permeation resistance (4.1.4) and mechanical properties (4.1.5).
The protective gloves against chemicals are classified into Type A, Type B and Type C depending on the dosage of test chemicals and the level of permeation resistance of each test chemical.
Foreword i
1 Scope
2 Normative references
3 Terms and definitions
4 Technical requirements
5 Test methods
6 Identification
7 Information provided by the manufacturer
Annex A (Normative) Penetration resistance test method
Bibliography
