| Title |
Standard No. |
Implemented On |
| General technical specifications for cleaners of welding fume | LD 37-1992 | |
| Rail transportation equipment manufacturing labor quota | LD/T 71.35-2019 | |
| General Technical Requirement for Vibration Isolation | LD 3-1991 | |
| Rail transit equipment manufacturing labor quota Special spline processing | LD/T 71.27-2019 | |
| Work quota for municipal engineering construction Road engineering | LD/T 99.5-1997 | |
| Work quota for municipal engineering construction Earth and stone engineering | LD/T 99.3-1997 | |
| Wool knitting clothing of anti-electrostic | LD 97-1996 | |
| Work quota for municipal engineering construction Dike building | LD/T 99.7-1997 | |
| Work quota for municipal engineering construction Pile foundation engineering | LD/T 99.4-1997 | |
| Labor quota for rail transit equipment manufacturing | LD/T 71.8-2019 | |
| Specifications on safety technical inspection of mine hoisting system. Part 2: Inspection of friction hoisting equipment | LD 87.2-1996 | |
| X-ray Protective Gloves | LD 34.5-1992 | |
| Medicine Classification and Codes for Social Insurance | LD/T 90-2012 | |
| Rail transit equipment manufacturing labor quota | LD/T 71.23-2019 | |
| Oil Resistant Rubber Gloves | LD 34.4-1992 | |
| Rail transit equipment manufacturing labor quota | LD/T 71.37-2019 | |
| Rail transit equipment manufacturing labor quota Assembly fitter processing | LD/T 71.30-2019 | |
| Construction Engineering Construction work quota - artificial earthwork | LD/T 72.2-2008 | |
| Rail transit equipment manufacturing labor quota | LD/T 71.16-2019 | |
| Acid (Alkali) Resistant Gloves | LD 34.2-1992 | |
| Rail transit equipment manufacturing labor quota Winding of special motor coils | LD/T 71.15-2019 | |
| Rail transit equipment manufacturing labor quota | LD/T 71.20-2019 | |
| Rail transit equipment manufacturing labor quota Special gear milling | LD/T 71.22-2019 | |
| Safety Code For Plants Producing Phosgene and Phosgenaion | LD 31-1992 | |
| Rail transit equipment manufacturing labor quota | LD/T 71.19-2019 | |
| Rail transit equipment manufacturing labor quota Vertical lathe processing | LD/T 71.29-2019 | |
| Directive for comprehensive evaluation of occupational health technical measures | LD/T 1-1991 | |
| Rail transit equipment manufacturing labor quota Special motor insulation treatment Dipping processing | LD/T 71.21-2019 | |
| Work quota for municipal engineering construction Water supply and drainage engineering | LD/T 99.8-1997 | |
| Rail transit equipment manufacturing labor quota Special gear hobbing processing | LD/T 71.24-2019 | |
| Rail transit equipment manufacturing labor quota | LD/T 71.26-2019 | |
| Labor quota tobacco industry capacity Dayefukao | LD/T 78.1-2006 | |
| Dust Respirators | LD 29-1992 | |
| Furnaces goggles and face mask | LD 66-1994 | |
| Rail transit equipment manufacturing labor quota | LD/T 71.36-2019 | |
| Protective Gloves and Mittens for Welders | LD 34.3-1992 | |
| Insulating Gloves for Elestrisal Purposes | LD 34.1-1992 | |
| Manufacture of labor quota for rail transit equipment manufacturing Special motor commutator manufacturing | LD/T 71.18-2019 | |
| Specifications and Testing Methods of Retroreflective Safety Signs for Mines | LD 88-1996 | |
| Work quota for municipal engineering construction Dismantling and provisional engineering | LD/T 99.1-1997 | |
| Work quota for municipal engineering construction Civil maintenance engineering | LD/T 99.13-1997 | |
| Labor quotas for rail transit equipment manufacturing | LD/T 71.31-2019 | |
| Waterless hamd cleaner | LD 49-1994 | |
| Social insurance management information system index set and code | LD/T 92-2013 | |
| Work quota for municipal engineering construction Tunnel engineering | LD/T 99.12-1997 | |
| Technical requirement of dust sampler | LD 62-1994 | |
| Work quota for municipal engineering construction Bridge engineering | LD/T 99.6-1997 | |
| Rail transit equipment manufacturing labor quota Special profile gas welding processing | LD/T 71.34-2019 | |
| Rail transit equipment manufacturing labor quota Special gear grinding | LD/T 71.25-2019 | |
| Labor quota for rail transit equipment manufacturing | LD/T 71.32-2019 | |
| Anti-impact Back Armor | LD 5-1991 | |
| Specifications on safety technical inspection of mine hoisting system. Part 5: Inspection of safety catch | LD 87.5-1996 | |
| Construction of labor quota installation works - Ventilation and Air Conditioning Engineering | LD/T 74.4-2008 | |
| Rail transit equipment manufacturing labor quota Production of special motor insulation products | LD/T 71.17-2019 | |
| Social insurance business Archives metadata Specification | LD/T 03-2021 | |
| Work quota for municipal engineering construction Installation of heating pipe network engineering | LD/T 99.10-1997 | |
| Work quota for municipal engineering construction Materials transport and processing | LD/T 99.2-1997 | |
| Administration Service Specification for Work-related Injury Insurance | LD/T 04-2021 | |
| Specifications on safety technical inspection of mine hoisting system. Part 1: Inspection of drum hoisting machine | LD 87.1-1996 | |
| Guideline for integrated teller system of social insurance service | LD/T 02-2021 | |
| Human Resources and Social Security Electronic Seal System Part 1:Overall Technical Architecture | LD/T 01.1-2022 | 2022-6-1 |
| Human Resources and Social Security Electronic Seal System Part 4:System Interface Specification | LD/T 01.4-2022 | 2022-6-1 |
| Human Resources and Social Security Electronic Seal System Part 3:Technical Specification of the Seal Signature | LD/T 01.3-2022 | 2022-6-1 |
| Human Resources and Social Security Electronic Seal System Part 2:Technical Specification of the Seal | LD/T 01.2-2022 | 2022-6-1 |
| Guidelines for evaluating the quality of public employment and talent service | LD/T 05-2021 | 2022-1-1 |
| Online service guide of social insurance | LD/T 01-2020 | 2020-2-1 |
| Specification on basic behavior of social insurance agents | LD/T 02-2020 | 2020-2-1 |
| Rules for the structure and drafting of work quota standard | LD/T 122-2019 | 2019-2-1 |
| Specifications of social security card. Part 6: Application data structures | LD/T 32.6-2015 | 2015-5-1 |
| Specifications of social security card-Part 4:Security mechanisms | LD/T 32.4-2015 | 2015-5-1 |
| Specifications of social security card-Part 2:Electrical characteristics,logic interfaces,and transmission protocols | LD/T 32.2-2015 | 2015-5-1 |
| Specifications of read-write terminal for social security card | LD/T 33-2015 | 2015-5-1 |
| Specifications of social security card. Part 5: Commands | LD/T 32.5-2015 | 2015-5-1 |
| Specifications of social security card - Part 1: Card style | LD/T 32.1-2015 | 2015-5-1 |
| Specifications of social security card-Part 7:fApplication procedures | LD/T 32.7-2015 | 2015-5-1 |
| Specifications of social security card-Part 3:File system and application selection | LD/T 32.3-2015 | 2015-5-1 |
| Basic Indicator Set and Code for Labor Inspection Management Information System | LD/T 31-2010 | 2011-1-1 |
| Human resources and social security electronic authentication system - Part 1: Architecture specification | LD/T 30.1-2009 | 2010-3-1 |
| Human resources and social security electronic authentication system - Part 2: Technology specification of electronic authentication system | LD/T 30.2-2009 | 2010-3-1 |
| Human resources and social security electronic authentication system—Part 4:Management specification of digital certificate application | LD/T 30.4-2009 | 2010-3-1 |
| Human resources and social security electronic authentication system - Part 3: Format specifications of digital certificate and CRL | LD/T 30.3-2009 | 2010-3-1 |
| Human resources and social security electronic authentication system - Part 5: Specification of digital certificate storage medium | LD/T 30.5-2009 | 2010-3-1 |
| Rail Transit Equipment Manufacturing Industry - Work Quota for Coating Processing | LD/T 71.14-2009 | 2009-10-1 |
| Rail Transit Equipment Manufacturing Industry - Work Quota for Welding Fabrication - Part 1: Ordinary Carbon Steel Welding Fabrication, Part 2: Stainless Steel Welding Fabrication, Part 3: Aluminum Alloy Welding Fabrication and Part 4: Welding Manipulator Processing | LD/T 71.7-2009 | 2009-10-1 |
| Rail Transit Equipment Manufacturing Industry - Work Quota for Forging Process | LD/T 71.10-2009 | 2009-10-1 |
| Rail Transit Equipment Manufacturing Industry - Work Quota for Manual Woodworking Processing | LD/T 71.12-2009 | 2009-10-1 |
| Rail Transit Equipment Manufacturing Industry - Work Quota for Milling Machine Processing | LD/T 71.3-2009 | 2009-10-1 |
| Rail Transit Equipment Manufacturing Industry - Work Quota for Drilling Machine Processing | LD/T 71.5-2009 | 2009-10-1 |
| Rail Transit Equipment Manufacturing Industry - Work Quota for Grinding Machine Processing | LD/T 71.6-2009 | 2009-10-1 |
| Rail Transit Equipment Manufacturing Industry - Work Quota for Boring Machine Processing | LD/T 71.2-2009 | 2009-10-1 |
| Rail Transit Equipment Manufacturing Industry - Work Quota for Slotting and Planing Machine Processing | LD/T 71.4-2009 | 2009-10-1 |
| Rail Transit Equipment Manufacturing Industry - Work Quota for Mechanical Woodworking Processing | LD/T 71.13-2009 | 2009-10-1 |
| Rail Transit Equipment Manufacturing Industry - Work Quota for Casting Processing | LD/T 71.9-2009 | 2009-10-1 |
| Rail Transit Equipment Manufacturing Industry - Work Quota for Metal Heat Treatment Processing | LD/T 71.11-2009 | 2009-10-1 |
| Rail Transit Equipment Manufacturing Industry - Work Quota for Lathe Processing | LD/T 71.1-2009 | 2009-10-1 |
| Labor Productivity Standards for Construction Works - Landscaping Works - Garden Path, Garden Bridge and Rockery Works [Bound Volume] | LD/T 75.2-2008 | 2009-3-1 |
| Construction of labor quota installation works - Electrical installation work | LD/T 74.2-2008 | 2009-3-1 |
| Construction of labor quota decoration - wooden doors and windows and decorative works | LD/T 73.2-2008 | 2009-3-1 |
| Construction of labor quota installation works - Brush oil, anti-corrosion and insulation engineering | LD/T 74.3-2008 | 2009-3-1 |
| Labor Productivity Standards for Construction Works - Landscaping Works - Landscape Works [Bound Volume] | LD/T 75.3-2008 | 2009-3-1 |
| Construction of labor quota decoration - plastering and veneered Engineering | LD/T 73.1-2008 | 2009-3-1 |
| Construction Engineering Construction work quota - masonry works | LD/T 72.4-2008 | 2009-3-1 |
| Construction Engineering Construction work quota - concrete works | LD/T 72.8-2008 | 2009-3-1 |
| Construction Engineering Construction work quota - Wood Structural Engineering | LD/T 72.5-2008 | 2009-3-1 |
| Construction of municipal engineering work quota - repair and maintenance works | LD/T 99.13-2008 | 2009-3-1 |
| Labor quota municipal engineering construction projects - demolition and temporary works | LD/T 99.1-2008 | 2009-3-1 |
| Construction of municipal engineering work quota - pile foundation | LD/T 99.4-2008 | 2009-3-1 |
| Labor Productivity Standards for Construction Works - Municipal Works - Pipe Network Project | LD/T 99.8-2008 | 2009-3-1 |
| Construction Engineering Construction work quota - shelf Engineering | LD/T 72.3-2008 | 2009-3-1 |
| Labor Productivity Standards for Construction Works - Installation Works - Pipe Installation Works | LD/T 74.1-2008 | 2009-3-1 |
| Construction of labor quota decoration - paint, paint, wall paper works | LD/T 73.3-2008 | 2009-3-1 |
| Construction Engineering Construction work quota - steel works | LD/T 72.7-2008 | 2009-3-1 |
| Construction Engineering construction work quota - corrosion, insulation, insulation works | LD/T 72.11-2008 | 2009-3-1 |
| Construction of municipal engineering work quota - dike project | LD/T 99.7-2008 | 2009-3-1 |
| Construction Engineering Construction work quota - Template Project | LD/T 72.6-2008 | 2009-3-1 |
| Construction of municipal engineering work quota - Tunnel Project | LD/T 99.12-2008 | 2009-3-1 |
| Labor Productivity Standards for Construction Works - Landscaping Works - Greening Works [Bound Volume] | LD/T 75.1-2008 | 2009-3-1 |
| Construction Engineering Construction work quota - metal structural engineering | LD/T 72.10-2008 | 2009-3-1 |
| Construction of labor quota decoration - glass, walls and roof lighting project | LD/T 73.4-2008 | 2009-3-1 |
| Construction of municipal engineering work quota - Bridges and Culverts | LD/T 99.6-2008 | 2009-3-1 |
| Construction of municipal engineering work quota - road works | LD/T 99.5-2008 | 2009-3-1 |
| Construction Engineering Construction work quota - Waterproofing | LD/T 72.9-2008 | 2009-3-1 |
| Construction Engineering construction work quota - Materials Transportation and Processing Engineering | LD/T 72.1-2008 | 2009-3-1 |
| Labor Ability Assessment - Grade Code for Disability of Industrial Injury and Occupational Diseases of Employees | LD/T 107-2008 | 2009-1-1 |
| Technical Specification for Vocational Skills Training and Identification Equipment of "Maintenance Electrician" | LD/T 81.2-2006 | 2006-10-1 |
| Technical Specification for Vocational Skills Training and Identification Equipment of "Air Conditioner Assembler (Refrigeration Worker)" | LD/T 81.4-2006 | 2006-10-1 |
| Technical Specification for Vocational Skills Training and Identification Equipment of "Consumer Electronics Maintenance Worker" | LD/T 81.5-2006 | 2006-10-1 |
| Configuration Specification for Vocational Skills Training and Identification Equipment of "Household Appliances Maintenance" | LD/T 82.4-2006 | 2006-10-1 |
| Configuration Specification for Vocational Skills Training Equipment of "Electrical Maintenance Speciality" and Professional Maintenance Skills Identification Equipment of "Maintenance Electrician" | LD/T 82.1-2006 | 2006-10-1 |
| Configuration Specification for Vocational Skills Training Equipment of "Refrigeration and Air Conditioning Speciality" and Professional Maintenance Skills Identification Equipment of "Air Conditioner Assembler (Refrigeration Worker)" | LD/T 82.2-2006 | 2006-10-1 |
| Technical Specification for Vocational Skills Training and Identification Equipment of "Elevator Installation and Maintenance Worker" | LD/T 81.3-2006 | 2006-10-1 |
| General Technical Specification for Vocational Skills Training and Identification Equipment | LD/T 81.1-2006 | 2006-10-1 |
| Configuration Specification for Vocational Skills Training and Identification Equipment of "Consumer Electronics Maintenance" | LD/T 82.3-2006 | 2006-10-1 |
| Multimedia Curriculum Development for Vocational Skills Training | LD/T 123-2006 | 2006-5-1 |
| Directive for comprehensive evaluation of occupational health technical measures | LD/T 121-2003 | 2003-10-1 |
| Tobacco industry work quota -- Filter rod making | LD/T 78.6-2003 | 2003-9-1 |
| Tobacco industry work quota - Making and packing | LD/T 78.4-2003 | 2003-9-1 |
| Tobacco industry work quota -- Reconstituted tobacco | LD/T 78.8-2003 | 2003-9-1 |
| Tobacco industry work quota -- Cigar manufacture | LD/T 78.5-2003 | 2003-9-1 |
| Tobacco industry work quota -- Tobacco primary process | LD/T 78.3-2003 | 2003-9-1 |
| Work quota for the electrical system installation of chemical engineering | LD/T 76.6-2000 | 2001-7-1 |
| Work quota for the heavy machinery maintenance of chemical engineering | LD/T 76.12-2000 | 2001-7-1 |
| Work quota for equipment installation of chemical engineering | LD/T 76.1-2000 | 2001-7-1 |
| Work quota for the process pipe fabrication and installation of chemical engineering | LD/T 76.4-2000 | 2001-7-1 |
| Work quota for the steel structure fabrication and installation of chemical engineering | LD/T 76.2-2000 | 2001-7-1 |
| Work quota for the instrumentation installation of chemical engineering | LD/T 76.5-2000 | 2001-7-1 |
| Work quota for the anti - Corrosion and insulation of chemical engineering | LD/T 76.8-2000 | 2001-7-1 |
| Work quota for the refractory work of chemical engineering | LD/T 76.11-2000 | 2001-7-1 |
| Work quota for the welding and cutting and non-destructive test of chemical engineering | LD/T 76.7-2000 | 2001-7-1 |
| Work quota for the hoisting and transportation and scaffolding work of chemical engineering | LD/T 76.9-2000 | 2001-7-1 |
| Work quota for the ventilation work of chemical engineering | LD/T 76.10-2000 | 2001-7-1 |
| Work quota for the metal vessel fabrication and erection of chemical engineering | LD/T 76.3-2000 | 2001-7-1 |
| Formulation of work quota of sewing for railway industry | LD/T 71.38-2000 | 2001-1-1 |
| Formulation of work quota of locomotive electrician for railway industry | LD/T 71.32-2000 | 2001-1-1 |
| Formulation of work quota of pipe fitter for railway industry | LD/T 71.31-2000 | 2001-1-1 |
| Formulation of work quota of gear machining for railway industry. Part 2: Formulation of work quota of gear shaping | LD/T 71.23-2000 | 2001-1-1 |
| Formulation of work quota of gear machining for railway industry Part 5:Formulation of work quota of gear planing | LD/T 71.26-2000 | 2001-1-1 |
| Formulation of work quota of motor insulation material for railway industry | LD/T 71.17-2000 | 2001-1-1 |
| Formulation of work quota of spring for railway industry | LD/T 71.37-2000 | 2001-1-1 |
| Formulation of work quota of motor commutator for railway industry | LD/T 71.18-2000 | 2001-1-1 |
| Formulation of work quota of gear machining for railway industry Part 3:Formulation of work quota of gear hobbing | LD/T 71.24-2000 | 2001-1-1 |
| Formulation of work quota of stamping for railway industry | LD/T 71.16-2000 | 2001-1-1 |
| Formulation of work quota of motor winding for railway industry | LD/T 71.19-2000 | 2001-1-1 |
| Formulation of work quota of gas welding for railway industry | LD/T 71.34-2000 | 2001-1-1 |
| Formulation of work quota of electroplating for railway industry | LD/T 71.35-2000 | 2001-1-1 |
| Formulation of work quota of gear machining for railway industry Part 4:Formulation of work quota of gear grinding | LD/T 71.25-2000 | 2001-1-1 |
| Formulation of work quota of verfical lathe machining for railway industry | LD/T 71.29-2000 | 2001-1-1 |
| Formulation of work quota of motor assembling for railway industry | LD/T 71.20-2000 | 2001-1-1 |
| Formulation of work quota of motor impregnating for railway industry | LD/T 71.21-2000 | 2001-1-1 |
| Formulation of work quota of broacher machining for railway industry | LD/T 71.27-2000 | 2001-1-1 |
| Formulation of work quota of slotter machining for railway industry | LD/T 71.28-2000 | 2001-1-1 |
| Formulation of work quota of gear machining for railway industry. Part 1: Formulation of work quota of gear milling | LD/T 71.22-2000 | 2001-1-1 |
| Formulation of work quota of riveting for railway industry | LD/T 71.8-2000 | 2001-1-1 |
| Formulation of work quota of motor coil for railway industry | LD/T 71.15-2000 | 2001-1-1 |
| Formulation of work quota of bench work for railway industry | LD/T 71.30-2000 | 2001-1-1 |
| Formulation of work quota of precision casting for railway industry | LD/T 71.36-2000 | 2001-1-1 |
| Wool knitting clothing of anti-electrostic | LD/T 97-1996 | 1997-10-1 |
| Protective clothing under 100keV radiation | LD 86-1996 | 1997-7-21 |
| Specifications on safety technical inspection of mine hoisting system Part 3: Inspection of belt conveyor for incline hoist | LD 87.3-1996 | 1997-2-1 |
| Assessment Standard for Safety Technology of Gas Operation Personnel in Industrial Enterprise | LD/T 105-1998 | 1997-2-1 |
| Overpressed Bursting Discs Equipment for Crystal Kettle | LD/T 94-1996 | 1997-2-1 |
| Specifications on safety technical inspection of mine helment lamp being used | LD/T 89-1996 | 1997-2-1 |
| Determination Method for Dust Concentration in the Air - Light Scattering | LD/T 98-1996 | 1997-2-1 |
| Time Standard for Mathematical Model of Work Quota in Transformer Industry | LD/T 104-1998 | 1997-2-1 |
| Protective trousers for underwater work | LD/T 101-1997 | 1997-2-1 |
| Work quota for municipal engineering construction Installation of gas pipe network engineering | LD/T 99.11-1997 | 1997-2-1 |
| Electric Type and Parameter for Metal Blasting with Open Seam | LD/T 95-1996 | 1997-2-1 |
| Specifications on safety technical inspection of mine hoisting system Part 4: Inspection of mine hoisting conveyance | LD 87.4-1996 | 1997-2-1 |
| Specifications on safety technical inspection of mine hoisting system Part 7: Inspection of wire rope and attachment | LD 87.7-1996 | 1997-2-1 |
| Specifications on inspection of ventilation and safety in coal mining work face and main chamber | LD/T 90-1996 | 1997-2-1 |
| Specifications on safety technical inspection of mine hoisting system Part 6: Inspection of safety device for inclines hoist | LD 87.6-1996 | 1997-2-1 |
| Aquatic Industry Protective Clothing | LD/T 100-1997 | 1997-2-1 |
| Gas cylinders - Procedures for change of gas service | LD 96-1996 | 1997-2-1 |
| Rules of inspect for classification of hazard levels due to exposure to industrial dust | LD 84-1995 | 1996-6-1 |
| Rules of inspect for classification of works in heat environment | LD 82-1995 | 1996-6-1 |
| Rules of inspect for classified standard of operation with exposure to toxic chemicals in the workplace | LD 81-1995 | 1996-6-1 |
| Rules of inspect for classification standard of labor intensity at physical work | LD 83-1995 | 1996-6-1 |
| Classification of work exposed to noise | LD 80-1995 | 1996-6-1 |
| Classification and Code for Labour Protection Appliances | LD/T 75-1995 | 1995-10-1 |
| Key Points for Quality Control of Welded Steel Gas Cylinders | LD/T 69-1994 | 1995-3-1 |
| Technical specification for fume extractors for tubular electric welding | LD 51-1994 | 1995-1-1 |
| Technical Specification for Kieselguhr for Filling Dissolved Acetylene Cylinders | LD 57-1994 | 1995-1-1 |
| Safety Monitoring of Lifting Machinery - Content and Method | LD 67-1994 | 1995-1-1 |
| Technical Specification for Asbestos for Filling Dissolved Acetylene Cylinders | LD 56-1994 | 1995-1-1 |
| Lifting appliances - Anticollision device - Safety technology code | LD 64-1994 | 1995-1-1 |
| Forest Fire Prevention Glove | LD 59-1994 | 1995-1-1 |
| Protective duvet clothing | LD 61-1994 | 1995-1-1 |
| Forest Fire Prevention Footwear | LD 60-1994 | 1995-1-1 |
| Forest Fire Prevention Suit | LD 58-1994 | 1995-1-1 |
| Safety Footwear (Boot) for Toe Protection | LD 50-1994 | 1995-1-1 |
| Code for Monitoring Safety Technology of Lifting Winch for Coal Mine | LD 68-1994 | 1995-1-1 |
| Lifting appliances - Load handing devices and Slings - Safety rules | LD 48-1993 | 1994-2-1 |
| General technical specifications for cleaners of welding fume | LD 40-1992 | 1993-10-1 |
| Work quota for municipal engineering construction Plant or station of water supply and drainage engineering | LD/T 99.9-1997 | 1993-5-1 |
| Softy specification for machinery of clay roofing title manufacture | LD 36-1992 | 1993-5-1 |
| Safety and health regulation for the leather manufacture | LD 35-1992 | 1993-5-1 |
| Raincoat for Labour Protection | LD 30-1992 | 1992-10-1 |
| Anti-high temperature protective footwear | LD 32-1992 | 1992-10-1 |
| Standard for Examing the Safety Technique of Electrician | LD 28-1992 | 1992-10-1 |
| General technical requirement for vibration isolation gloves | LD 2-1991 | 1992-7-1 |
| Welding protective shoes | LD 4-1991 | 1992-7-1 |
| General technical requirements for powered dust respirator | LD 6-1991 | 1992-7-1 |
| Anti-impact Back Armor | LD 52-1994 | 1992-7-1 |
| Open combined powered dust respirator | LD 7-1991 | 1992-7-1 |
