check
check, Total:240 items.
The international standard classification for "check" includes: Product and company certification. Conformity assessment , Explosives. Pyrotechnics , Other standards related to company organization and management , Playgrounds , Public buildings .
The Chinese standard classification for "check" includes: Comprehensive Technology , Standardization and Quality Management , Artistic handicrafts , Measurement in general , Toys , Residential and public building engineering , Technical Management , Standardization and quality management .
Shanxi Provincial Standard of the People's Republic of China
- DB14/T 3038-2024 Specification for sample management of food inspection and testing institutions
- DB14/T 2278-2021 Basic Requirements for Integrity of Practitioners of Inspection and Testing Institutions
- DB14/T 2796-2023 Guidelines for self-declaration, integrity and disclosure of comprehensive capacity building of inspection and testing institutions
- DB1407/T 43-2022 Inspection and testing original record management specification
- DB1407/T 52-2024 Safety Protection Guidelines for Medical Instrument and Equipment Inspection and Testing Personnel
- DB1404/T 10-2021 Reagent acceptance management requirements for inspection and testing institutions
- DB1404/T 6-2021 Inspection and testing agency report issuance management requirements
- DB1404/T 11-2021 Storage requirements for pharmaceutical reagents of inspection and testing institutions
- DB1404/T 8-2021 Instrument and equipment management requirements for inspection and testing institutions
- DB1404/T 7-2021 Configuration requirements for environmental facilities of inspection and testing institutions
- DB14/T 2499-2022 Guidelines for the management and application of reference materials for chemical testing by inspection and testing institutions
- DB14/T 2498-2022 Guidelines for the Management of Technical Files of Inspection and Testing Institutions
- DB1407/T 41-2022 On-site service specification for inspection and testing institutions
- DB14/T 2808-2023 Waste Management Guidelines for Food Inspection and Testing Agencies
- DB1404/T 3-2021 Standard text management requirements for inspection and testing institutions
- DB1404/T 18-2021 Inspection and testing laboratory instrument analysis method validation requirements Spectroscopy
- DB1404/T 13-2021 Reagent Requisition Management Requirements for Inspection and Testing Institutions
- DB1407/T 42-2022 Commissioned Service Specifications for Inspection and Testing Institutions
- DB14/T 3037-2024 Compliance Guidelines for Inspection and Testing Institutions to Carry Out Inspection and Testing Activities
- DB14/T 2497-2022 Guidelines for Instrument and Equipment File Management of Inspection and Testing Institutions
- DB1404/T 9-2021 General requirements for equipment installation of inspection and testing institutions
- DB14/T 3036-2024 Overall framework of the inspection and testing management standard system
- DB1403/T 36-2024 Specification for the management of waste from inspection and testing of refractory materials
- DB1404/T 16-2021 Risk assessment management requirements for inspection and testing institutions
- DB1404/T 4-2021 Storage requirements for technical data of inspection and testing institutions
- DB1404/T 12-2021 Requirements for disposal of samples after inspection by inspection and testing institutions
- DB14/T 2795-2023 Inspection and Testing Institution Qualification Certification Notification Commitment Follow-up Inspection Work Guidelines
- DB1404/T 5-2021 Electronic data management requirements for inspection and testing institutions
- DB1404/T 17-2021 Inspection and testing laboratory instrument analytical method validation requirements chromatography
- DB1404/T 15-2021 Management Requirements for Inspection and Testing Institutions Opening to the Outside World
- DB1404/T 14-2021 Management requirements for foreign personnel of inspection and testing institutions
Qinghai Provincial Standard of the People's Republic of China
- DB63/T 2115-2023 Guidelines for Maintenance of Instruments and Equipment of Inspection and Testing Institutions
- DB63/T 2301-2024 Specification for the expression of inspection and testing capabilities for the qualification certification of inspection and testing institutions
Chongqing Provincial Standard of the People's Republic of China
- DB50/T 1362-2023 Inspection and Testing Service Customer Satisfaction Evaluation Guide
- DB50/T 1683-2024 Procedures for on-site technical review of qualification certification of inspection and testing institutions
- DB50/T 1684-2024 Specification for the expression of testing and inspection capabilities for the accreditation of testing and inspection institutions
Jiangsu Provincial Standard of the People's Republic of China
- DB32/T 3166.2-2016 Integrity Specifications for Quality and Technical Supervision, Inspection and Testing Part 2: Inspection and Testing of Special Equipment
- DB32/T 3166.1-2016 Integrity Specifications for Quality and Technology Supervision, Inspection and Testing Part 1: Product Quality Inspection and Testing
- DB32/T 4194-2022 Specifications for the expression of inspection and testing capabilities for the qualification accreditation of inspection and testing institutions
- DB3204/T 1040-2022 Code of Integrity Behavior for Inspection, Testing, Verification and Calibration Institutions
- DB32/T 4195-2022 On-site Technical Review Work Procedures for Qualification Accreditation of Inspection and Testing Institutions
- DB3211/T 1081-2025 Inspection and testing institutions rectification work specifications
- DB3206/T 1065-2024 Inspection and testing agency service specifications
- DB32/T 4488-2023 Specifications for the preparation of inspection and testing agency qualification accreditation review reports
- DB32/T 4550-2023 Procedures for proficiency testing of inspection and testing institutions
Group Standards of the People's Republic of China
- T/BSAS 001-2020 Code for Emergency Management of Agricultural Product Quality Inspection and Testing Laboratory
- T/LZZLXH 063-2021 Internal Calibration Specifications for Inspection and Testing Laboratories
- T/CCAA 61-2023 Guidelines of testing method development for inspection body and laboratory
- T/SXCAA 015-2021 Guidelines for the Storage and Management of Commonly Used Chemical Reagents in Inspection and Testing Institutions
- T/CAQI 158-2020 General principles of integrity evaluation for inspection body and laboratory
- T/HNCAA 046-2023 Document control of Inspection and inspection organization
- T/HEBQIA 228-2023 Food inspection and testing agency testing service specifications
- T/SCAQ 001-2021 Requirements for Resource Allocation and Operation Management of Motor Vehicle Inspection and Testing Institutions
- T/CAQI 176-2021 Guidelines for Internal Verification of Inspection and Testing Institutions Fulfilling Informed Commitments
- T/SCAQ BAI003-2017 Comprehensive evaluation and star rating of motor vehicle inspection and testing institutions
- T/LZZLXH 062-2021 Operating procedures for chemical analysis pipetting of inspection and testing institutions
- T/HNCAA 029-2021 Compilation of inspection testing reports
- T/LZZLXH 051-2021 Service management standard for quality of inspection agency
- T/CAQI 157-2020 Guidelines of compliance evaluation for inspection body and laboratory
- T/GDCKCJH 010-2020 Specification for archives management of special equipment inspection and testing institutes scientific research archives
- T/TCCT 001-2022 Checking Standards for Laser Micromachining Equipment
- T/HEBQIA 228-2024 Food inspection and testing agency testing service specifications
- T/LZZLXH 059-2021 Operating procedures for chemical analysis and titration of inspection and testing institutions
- T/GDCKCJH 012-2020 Specification for archives management of special equipment inspection and testing institutes electronic archives
- T/GDCKCJH 007-2020 Specification for archives management of special equipment inspection and testing institutes instrument and equipment archives
- T/SXCAA 002-2020 Motor Vehicle Inspection and Testing Software Verification Guide
- T/SCAQ BA1002-2017 Management specification for motor vehicle inspection and testing institutions
- T/CAQI 171-2021 Specifications of risk management for inspection body and laboratory
- T/SDAS 832-2024 Numbering rules of testing reports
- T/GDCKCJH 006-2020 Specification for archives management of special equipment inspection and testing institutes administrative archives
- T/SHZSAQS 00114-2022 Construction of quality management system for special equipment inspection and testing institutions
- T/GDAQI 008-2019 The inspection service specification for special equipment
- T/GDCKCJH 008-2020 Specification for archives management of special equiment inspection and testing institutes financial archives
- T/LZZLXH 061-2021 Specifications for sample management of inspection and testing institutions
- T/ZTCA 006-2022 Inspection and testing cloud service platform service specification
- T/GDCKCJH 009-2020 Specification for archives management of special equipment inspection and testing institutes audio-visual archives
- T/LZZLXH 035-2020 Technical specification for inspection and detection in laboratory
- T/CAS 457-2020 Basic Information Requirements for Electronic Inspection and Testing Report
- T/HNCAA 027-2021 Verification of inspection and testing standard methods
- T/CCBD 25-2023 Evaluation of competitiveness for inspection body and laboratory
- T/AHEMA 27-2022 Guide for construction of information management system construction of ecological environment inspection and testing institutions
- T/HNCAA 032-2022 Standard for compiling construction project quality inspection and testing report
- T/CCBD 9-2020 Brand evaluation —Testing organizations of indoor air quality and related product
- T/GDCKCJH 011-2020 Specification for archives management of special equipment inspection and testing institutes physical principles
- T/GDASE 0001-2020 Compilation specification for special equipment inspection and testing service guide
- T/HNCAA 031-2022 Electronic Archives Management Standards for Construction Quality Inspection and Testing Institutions
- T/AHEMA 26-2022 General specification for electronic original records of ecological environment inspection and testing institutions
- T/RBX 002-2016 Service Specifications for Motor Vehicle Inspection and Testing Institutions
- T/NAIA 090-2021 Inspection and testing report preparation rules
- T/GTM 022-2022 Specification of the service process of the third-party inspection and testing institutions for microbial fertilizers
- T/ZTCA 007-2022 Equipment interface specification for inspection and testing cloud service platform
- T/SXCAA 022-2022 Inspection and Testing Data Protection Guidelines
- T/GDCKCJH 005-2020 Specification for archives management of special equipment inspection and testing institutes general principles
Shaanxi Provincial Standard of the People's Republic of China
- DB61/T 1467-2021 Inspection and Testing Institution Hazardous Chemicals Safety Management Regulations
- DB61/T 1327.5-2020 Qualification Accreditation of Inspection and Testing Institutions Part 5: Specifications for Preparation of Inspection and Testing Reports
- DB61/T 1327.6-2020 Qualification Accreditation of Inspection and Testing Institutions Part 6 Management Requirements for Assessors
- DB61/T 1466-2021 Hazardous waste disposal management specification for inspection and testing institutions
- DB61/T 1327.8-2023 Qualification Accreditation of Inspection and Testing Institutions Part 8: Behavioral Requirements for Practitioners of Inspection and Testing Institutions
- DB61/T 1327.9-2021 Qualification Accreditation of Inspection and Testing Institutions Part 9: Equipment Verification Requirements
- DB61/T 1427-2021 Inspection and testing business process
- DB6101/T 3182-2024 Inspection and testing data management specifications data elements
- DB61/T 1327.11-2023 Qualification Certification of Inspection and Testing Institutions Part 11: Management Specifications for Laboratory Sample Records and Testing Records
- DB6101/T 3188-2024 Inspection and testing data management specification Data interface
- DB61/T 1327.4-2020 Qualification Accreditation of Inspection and Testing Institutions Part 4: Requirements for Periodic Inspection of Equipment
- DB61/T 1327.7-2020 Part 7 Internal Audit Requirements for Qualification Accreditation of Inspection and Testing Institutions
- DB61/T 1327.1-2020 Qualification Accreditation of Inspection and Testing Institutions Part 1: Review Guidelines
- DB61/T 1327.13-2023 Qualification Certification of Inspection and Testing Institutions Part 13: Internal Calibration Requirements
- DB61/T 1327.12-2023 Qualification Certification of Inspection and Testing Institutions Part 12: Subcontracting Requirements
- DB61/T 1719-2023 Specifications for Labor Protection of Special Equipment Inspection and Testing Personnel
- DB6101/T 3189-2024 Inspection and testing data management specifications Data security
- DB61/T 1327.2-2020 Qualification Accreditation of Inspection and Testing Institutions Part 2: Technical Requirements for On-site Test Assessment
- DB61/T 1327.14-2023 Qualification Certification of Inspection and Testing Institutions Part 14: Electronic Data Collection Requirements for Inspection and Testing Information Systems
- DB61/T 1766-2023 Basic requirements for inspection and testing service quality
- DB61/T 1453-2021 Inspection and testing service quality monitoring specification
Professional Standard - Certification and Accreditation
- RB/T 064-2021 Inspection and testing agency management and technical capability evaluation building material testing requirements
- RB/T 214-2017 Competence assessment for inspection body and laboratory mandatory approval—Genaral requirements for inspection body and laboratory
- RB/T 021-2019 Supplier evaluation regulations of inspecting and detecting key consumables
- RB/T 043-2020 Competence assessment of management and technical for inspection body and laboratory—Requirements for construction engineering inspection and testing
- RB/T 220-2018 Competence assessment for inspection body and laboratory mandatory approval—Requirements for information security inspection body and test laboratory
- RB/T 022-2019 General requirements for inspecting and testing of key consumables supplier
- RB/T 042-2020 Competence assessment of management and technical for inspection body and laboratory—Requirements for electrical inspection and testing
Zhejiang Provincial Standard of the People's Republic of China
- DB3307/T 102-2019 Service specification for e-commerce product quality inspection and testing institutions
- DB3308/T 158-2024 Service Specification for Inspection and Testing Institutions
Henan Provincial Standard of the People's Republic of China
- DB41/T 1785-2019 Safety code for inspection and testing of confined spaces inside special pressure equipment
- DB4105/T 178-2021 Specifications for sample management of inspection and testing institutions
- DB4106/T 16-2020 Service Specifications for Food Inspection and Testing Institutions
- DB41/T 2543-2023 Safety operating standards for inspection and testing of pressure-bearing special equipment
- DB4106/T 38-2021 Inspection and testing safety protection specifications
- DB41/T 1707-2018 Inspection and Testing Institution Qualification Accreditation Review Regulations
- DB4106/T 81-2022 Specifications for the preparation of agricultural product inspection and testing reports
- DB4105/T 189-2022 Commercial coal inspection and testing service specification
- DB41/T 2844-2025 Elevator Inspection and Testing Data Specifications
- DB4106/T 20-2020 Product quality inspection and testing agency service specification
- DB41/T 2808-2025 Specifications for inspection and testing professional skills competition
- DB4105/T 140-2020 Guidelines for the use of safety signs for animal product quality inspection and testing laboratories
- DB4117/T 349-2022 Safety and protection codes for inspection and testing sites of electromechanical special equipment
- DB4103/T 129-2021 Product (commercial) product inspection and testing agency service specification
- DB4117/T 333-2022 Management specification for inspection and testing waste of pressure-bearing special equipment
- DB4117/T 334-2022 Safety and protection codes for inspection and testing sites of pressure-bearing special equipment
- DB4102/T 015-2020 Inspection and testing sampling management rules
- DB4101/T 99-2024 Food inspection and testing laboratory waste sample management specifications
Anhui Provincial Standard of the People's Republic of China
- DB3418/T 016-2022 On-site inspection service guide for inspection and testing institutions
- DB3418/T 024-2022 Specifications for Subcontracted Testing Services of Inspection and Testing Institutions
- DB3418/T 018-2022 Industry-University-Research Cooperation Service Specifications for Inspection and Testing Institutions
- DB3418/T 026-2022 Specifications for the management of sample retention by inspection and testing institutions
- DB34/T 5142-2025 Labour Protection Standards for Special Equipment Inspection and Testing Personnel
- DB3411/T 0013-2022 Fairness Requirements for Inspection and Testing Institutions
- DB3418/T 022-2022 Specifications for Remote Inspection Services of Inspection and Testing Institutions
- DB34/T 4876-2024 Technical specifications for the effectiveness of monitoring results of inspection and testing institutions
- DB3418/T 021-2022 Specifications for data management and sharing of inspection and testing institutions
- DB34/T 4877-2024 Guidelines for the Construction of Smart Inspection and Testing Laboratories
- DB3418/T 020-2022 Guidelines for Service Performance Evaluation of Inspection and Testing Institutions
- DB3418/T 023-2022 Guidelines for Sampling Inspection of Inspection and Testing Institutions
- DB3401/T 345-2024 6S On-site Management Specifications for Food Inspection and Testing Institutions
- DB3418/T 013-2022 Specifications for sample service of motor inspection and testing institutions
- DB3418/T 015-2022 Customer Service Specifications for Motor Inspection and Testing Institutions
- DB3418/T 017-2022 Specifications for dispatching testing services of professional and technical personnel of inspection and testing institutions
- DB3418/T 019-2022 Specifications for electronic archives management of inspection and testing institutions
- DB3418/T 014-2022 Motor inspection and testing organization logistics service specification
- DB3418/T 025-2022 Specifications for installation and management of instruments and equipment for inspection and testing institutions
- DB34/T 4050-2021 General Rules for Service Specifications of Inspection and Testing Institutions
- DB3411/T 0014-2022 Guidelines for Service Informatization Construction of Inspection and Testing Institutions
Hunan Provincial Standard of the People's Republic of China
- DB43/T 2208-2021 General requirements for the capabilities of grain inspection and testing institutions
- DB43/T 2304-2022 Safety management regulations for inspection and testing institutions
- DB43/T 2774.3-2024 Technical review of qualification certification of inspection and testing institutions Part 3: Specifications for the expression of inspection and testing capabilities
- DB43/T 1796-2020 Construction and evaluation of green inspection and testing institutions
General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China
- GB/T 39079-2020 Inspection and test specifications of large-scale amusement device—Acceleration test
- GB/T 36308-2018 Specification of integrity evaluation for inspection body and laboratory
- GB/T 20050-2020 Inspection and testing specifications of large-scale amusement device—General principles
- GB/T 31880-2015 Essential requirements of integrity for inspection body and laboratory
- GB/T 41644-2022 Fireworks and firecrackers—Inspection and testing method
- GB/T 27423-2019 Conformity assessment—Guide to risk management for inspection and testing services
- GB/T 44512-2024 Inspection and test specifications of large-scale amusement device—Ultrasonic stress testing
- GB/T 39663-2021 Compilation specifications of integrity report for inspection body and laboratory
- GB/T 40149-2021 Construction specifications of credit files for employees of inspection body and laboratory
- GB/T 37140-2018 Technical requirements acceptance specification for inspection and testing laboratory
Sichuan Provincial Standard of the People's Republic of China
- DB5101/T 1-2018 Chengdu food inspection and testing data exchange specification
- DB5106/T 23-2023 Inspection and testing service quality monitoring regulations
- DB5115/T 90.6-2022 Market Supervision and Administration Regulations Part 6: Metrology and Inspection and Testing Institutions
- DB5106/T 24-2023 Entrusted inspection and testing business work specifications
- DB51/T 2874-2022 Implementation Guidelines for Inspection and Testing Institutions to Protect Clients' Secrets
- DB5101/T 2-2018 Chengdu Food Inspection and Testing Exchange Data Interface Specification
Shandong Provincial Standard of the People's Republic of China
- DB3708/T 45-2023 Service specifications for food inspection and testing agencies
- DB37/T 3934-2020 Technical Specifications for Remote Review of Qualification Accreditation of Inspection and Testing Institutions
- DB3715/T 27-2022 Specifications for sample management of inspection and testing institutions
Hebei Provincial Standard of the People's Republic of China
- DB1303/T 393-2025 Management Specifications for Backup Sample of Food Testing and Inspection Institutions
- DB1307/T 383-2022 Service Quality Specifications for Inspection and Testing Institutions
- DB1305/T 76-2023 Sample Management Specifications for Inspection and Testing Institutions
- DB1304/T 490-2024 Specification for sample management of food inspection and testing institutions
- DB1303/T 295-2023 Logistics Support Guide for Inspection and Testing Institutions
- DB13/T 5410-2021 The technical ability of the personnel of special equipment inspection and testing institutions shall be maintained
- DB1303/T 368-2023 Sample Management Specifications for Food Inspection and Testing Institutions
- DB13/T 2487-2017 Special equipment inspection and testing safety operation specification
- DB1306/T 276-2024 Specification for the management of waste from inspection and testing of special equipment
- DB13/T 1721-2013 Technical Regulations for Inspection and Detection of Pepper Light Mottle Virus
- DB13/T 5569-2022 On-site management specifications for food inspection and testing institutions
- DB13/T 5732-2023 General requirements for labor protection of special equipment inspection and testing personnel
- DB1304/T 473-2024 Specification for sample management of drug inspection and testing institutions
- DB1303/T 294-2023 Inspection and testing agency business window service specifications
Inner Mongolia Provincial Standard of the People's Republic of China
- DB1506/T 12-2020 Specifications for sample management of inspection and testing institutions
- DB1506/T 28-2022 General Requirements of Inspection and Testing Records Management Guidelines
- DB15/T 1054-2024 Requirements for recording data for inspection and testing by computer software processing
秦皇岛市市场监督管理局标准化科
- DB1303/T 294-2020 Service Window Guide for Inspection and Testing Institutions
- DB1303/T 295-2020 Logistics Support Guide for Inspection and Testing Institutions
Professional Standard - Forestry
- LY/T 3422-2024 Norms for Competence Verification of Forest Product Inspection and Testing
Jilin Provincial Standard of the People's Republic of China
- DB22/T 2492-2016 Code of Conduct for Inspection and Testing Institutions
- DB22/T 2698-2017 7s management specification for service site of inspection and testing institutions
- DB22/T 2696-2017 Product quality inspection and testing agency service specification
Gansu Provincial Standard of the People's Republic of China
- DB62/T 4907-2024 Special equipment inspection and testing service specifications
Guangdong Provincial Standard of the People's Republic of China
- DB4414/T 28-2023 Motor vehicle inspection and testing agency service specifications
- DB44/T 2017-2017 Labor protection specification for special equipment inspection and testing personnel
Fujian Provincial Standard of the People's Republic of China
- DB3505/T 10-2024 Sample Management Specifications for Inspection and Testing Institutions
- DB35/T 2178-2024 Work guidelines for on-site verification of qualification certification notifications and commitments of inspection and testing institutions
- DB35/T 2084-2022 Special equipment inspection and testing data transmission interface requirements
Liaoning Provincial Standard of the People's Republic of China
- DB21/T 3806-2023 Specifications for video recording of the entire elevator inspection and testing process
- DB21/T 3485-2021 Drawing method of container inspection and test report with drawings
Heilongjiang Provincial Standard of the People's Republic of China
- DB23/T 3598-2023 Hemp Inspection and Testing Laboratory Personnel Competency Requirements
- DB23/T 3467-2023 Safety management specification for hemp inspection and testing laboratory
- DB23/T 3468-2023 Disposal Specifications for Hemp Inspection and Testing Laboratory Waste
- DB23/T 3652-2023 On-site review guide for qualification accreditation of inspection and testing institutions
Hubei Provincial Standard of the People's Republic of China
- DB42/T 1279-2017 General Guidelines for Qualification Accreditation Review of Motor Vehicle Inspection and Testing Institutions
- DB42/T 1493-2018 Guidelines for On-site Review of Qualification Accreditation Capability Evaluation of Inspection and Testing Institutions
- DB42/T 2335-2024 Evaluation Norms for Credit Risk of Testing and Inspection Institutions
- DB42/T 2102-2023 Quality Control Work Guide for Inspection and Testing Institutions
- DB4206/T 94-2025 Management Specifications for Reference Materials and Standard Solutions in Testing and Inspection Institutions
Professional Standard - Special Equipment Specification
- TSG Z7002-2004 evaluation and assessment rules on special equipment inspection agencies
- TSG Z7001-2004 Rules for Approval of Special Equipment Inspection and Testing Institutions
- TSG Z7003-2004 requirements for quality management system of special equipment inspection agencies
Jiangxi Provincial Standard of the People's Republic of China
- DB36/T 1479-2021 Information and commitment verification specifications for inspection and testing institutions qualification accreditation
- DB36/T 1893-2023 Inspection and Testing Data Asset Assessment Certification Guide
Xinjiang Provincial Standard of the People's Republic of China
- DB6523/T 351-2023 Emergency management regulations for agricultural product quality and safety inspection and testing laboratories
- DB6523/T 401-2024 Specification for waste management in agricultural product inspection and testing laboratories
- DB65/T 4440-2021 Specifications for remote review of qualification accreditation of inspection and testing institutions
Beijing Provincial Standard of the People's Republic of China
- DB11/T 2325-2024 Technical regulations for inspection and testing of building exterior wall insulation projects
Tianjin Provincial Standard of the People's Republic of China
- DB12/T 691-2016 General conditions for comprehensive performance inspection and testing institutions of road transport vehicles
Yunnan Provincial Standard of the People's Republic of China
- DB53/T 1315-2024 Electronic certificate production specification inspection and testing agency qualification certificate
石家庄市质量技术监督局
- DB1301/T 279-2018 Quality control specifications for county-level livestock product quality and safety inspection and testing institutions
AASHTO - American Association of State Highway and Transportation Officials
- DIVISION II 29.5-1996 Inspection and Testing
CN-DB 6
- DB6505/T 176-2023 Service specifications of professional fiber inspection and testing institutions
- DB6505/T 177-2023 Specifications for customer satisfaction evaluation of inspection and testing institutions
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