GB 21148-2020 English PDF

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GB 21148-2020: Foot protection--Safety footwear
Status: Valid

GB 21148: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB 21148-2020	709	Add to Cart	6 days	Foot protection--Safety footwear	Valid
GB 21148-2007	RFQ	ASK	5 days	Personal protective equipment -- Safety footwear	Obsolete

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Basic data

Standard ID: GB 21148-2020 (GB21148-2020)
Description (Translated English): Foot protection--Safety footwear
Sector / Industry: National Standard
Classification of Chinese Standard: C73
Classification of International Standard: 13.340.50
Word Count Estimation: 38,317
Date of Issue: 2020-07-23
Date of Implementation: 2021-08-01
Older Standard (superseded by this standard): GB 12011-2009, GB 21146-2007, GB 21147-2007, GB 21148-2007
Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration

GB 21148-2020: Foot protection--Safety footwear

---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Foot protection--Safety footwear ICS 13.340.50 C73 National Standards of People's Republic of China Replace GB 12011-2009, GB 21146-2007, GB 21147-2007, GB 21148-2007 Foot protection safety shoes (ISO 20345.2011, Personalprotective equipment-Safetyfootwear, NEQ) 2020-07-23 release 2021-08-01 implementation State Administration for Market Regulation Issued by the National Standardization Management Committee

Table of contents

Preface Ⅲ 1 Scope 1 2 Normative references 1 3 Terms and definitions 1 4 Classification, style and marking 5 5 Basic requirements 6 5.1 General 6 5.2 Finished shoes 8 5.3 Upper 9 5.4 Front and rear lining 10 5.5 Tongue 11 5.6 Insoles and insoles 11 5.7 Outsole 12 6 Protection performance 14 6.1 General 14 6.2 Toe protection 14 6.3 Puncture resistance 16 6.4 Electrical properties 17 6.5 Resistance to harsh environments 17 7 Additional requirements 18 7.1 General 18 7.2 Energy absorption in the shoe seat area 18 7.3 Water resistance 18 7.4 Metatarsal protection 18 7.5 Ankle protection 19 7.6 Anti-cutting 19 7.7 Water permeability and water absorption of shoe upper 20 7.8 Heat contact resistance of outsole 20 7.9 Oil resistance of outsole 20 8 Logo 20 9 Information to be provided by the manufacturer 20 9.1 General requirements 20 9.2 Electrical properties 21 9.3 Insole 22 Appendix A (Normative Appendix) Mixed Shoes 23 Appendix B (Normative Appendix) Test of non-metallic anti-puncture pad 25 Appendix C (Normative appendix) Electrical insulation performance withstand voltage test 27 Appendix D (Normative Appendix) Evaluation of shoes during thermal performance test 29 Appendix E (informative appendix) Marking categories of international standards 30 Reference 31

Foreword

This standard was drafted in accordance with the rules given in GB/T 1.1-2009. This standard replaces GB 12011-2009 "Foot Protective Electrical Insulating Shoes", GB 21146-2007 "Personal Protective Equipment Occupational Shoes", GB 21147-2007 "Personal protective equipment and safety shoes" and GB 21148-2007 "Personal protective equipment and safety shoes". This standard is based on Mainly GB 21148-2007, which integrates the contents of GB 21146-2007, GB 21147-2007 and GB 12011-2009. Compared with GB 21148-2007, the main changes of this standard are as follows. ---Modified the scope of application (see Chapter 1, Chapter 1 of the.2007 edition); ---Modified the four terms of "safety shoes", "leather", "polymeric material" and "protection toe cap" (see 3.1, 3.2, 3.4, 3.12,.2007 edition 3.1, 3.2, 3.4, 3.12); The four terms "conductive shoes", "anti-static shoes", "electrically insulating shoes" and "fuel oil" have been deleted (see.2007 Version 3.14~3.17); Added the term "mixed shoes" (see 3.14); ---Modified the description of some shoe components (see Figure 1, Figure 2, Figure 3, Figure 1, Figure 2, Figure 3 of the.2007 edition); ---Increase and modify the protective performance marking symbol (see 4.3, Table 15 of the.2007 edition); ---The basic requirements and additional requirements of safety shoes are adjusted to basic requirements, protective performance and additional requirements (see Chapter 5, Chapter 6 and Chapter Chapter 7, Chapter 5 and Chapter 6 of the.2007 edition); ---Added shoe seat area requirements (see 5.2.1.2); ---Modified the structural requirements for sole performance (see 5.2.2.1, 5.3.1.1 of the.2007 edition); ---Modified the ergonomics requirements (see 5.2.4, 5.3.4 of the.2007 edition); ---The slip resistance requirements have been added (see 5.2.5); ---Added the wear resistance requirements of the lining in the shoe seat area (see 5.4.2, 5.5.2 of the.2007 edition); ---Added the general requirements for toe protection (see 6.2.1, 5.3.2.1 of the.2007 edition); ---Increase and modify the puncture force and structural requirements of the anti-puncture pad (see 6.3.1.2 and 6.3.2, 6.2.1.2 of the.2007 edition), and correspondingly increase Added Appendix B; ---Modified the electrical insulation performance requirements (see 6.4.3, 6.2.2.3 of the.2007 edition), and added Appendix C accordingly; ---Modified the thermal insulation requirements (see 6.5.1, 6.2.3.1 of the.2007 edition), and added Appendix D accordingly; --- Deleted Appendix A (see Appendix A of the.2007 edition); ---Added "mixed shoes" related content (see 4.2 and Appendix A); ---Add harmlessness declaration and safety information requirements to the information that the manufacturer should provide [see 9.1e)]; ---Adjustment adds Appendix E (see Appendix E, Table 17 of the.2007 edition). This standard uses the redrafting method with reference to ISO 20345.2011 "Personal protective equipment and safety shoes", which is consistent with ISO 20345.2011. The degree of consistency is non-equivalent. This standard was proposed and managed by the Ministry of Emergency Management of the People's Republic of China. The previous versions of the standard replaced by this standard are as follows. ---GB 12011-1989, GB 12011-2000, GB 12011-2009; ---GB 21146-2007; ---GB 21147-2007; ---GB 21148-2007. Foot protection safety shoes

1 Scope

This standard specifies the terms and definitions, classification, style and marking, basic requirements, protective performance, additional requirements, marking and manufacturing of safety shoes Information that should be provided by the supplier. This standard applies to shoes that protect the wearer's feet from hazards in the work area or safety in the work area.

2 Normative references

The following documents are indispensable for the application of this document. For dated reference documents, only the dated version applies to this article Pieces. For undated references, the latest version (including all amendments) applies to this document. GB/T 308.1 Rolling Bearing Ball Part 1.Steel Ball GB/T 20991-2007 Test method for personal protective equipment shoes GB/T 22807 Leather and fur chemical test Determination of hexavalent chromium content. spectrophotometric method GB 24541-2009 Hand protection mechanical hazards protective gloves GB/T 28287 Test method for slip resistance of foot protective shoes GB/T 28288-2012 Foot protection, toe protection toe cap and anti-puncture pad GB/T 31009 Foot protective footwear (boots) limited substance requirements and test methods

3 Terms and definitions

The following terms and definitions apply to this document. 3.1 Safety footwear Protect the wearer from injuries caused by accidents, have protective features and protect the safety of the work area. Note 1.Excluding firefighter's work boots, anti-chain saw cutting shoes, anti-chemical shoes, anti-melting metal and molten metal splashing shoes and motorcycle rider shoes. Note 2.The safety shoe components are illustrated in Figure 1, Figure 2 and Figure 3. 3.2 Leather Leather that will not rot after tanning. 3.3 Rubber Vulcanized rubber. 3.4 Polymeric materials Structural units (monomers) are repeatedly connected by covalent bonds to form high molecular weight compounds. Examples. Polyurethane (PU) or Polyvinyl Chloride (PVC). 3.5 Insole A fixed sole component that is usually connected to the upper during shoemaking. ......

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