This standard specifies the classification and marking, requirements, test methods, inspection rules, marking, packaging, transportation, and storage of bolts for building doors and windows. This standard is applicable to bolts for double leaf hinged doors and windows in buildings. The following normative references are essential for the application of this document. For dated references, only the dated version applies to this document. For undated references, the latest version (including all modification orders) applies to this document. GB/T 2828.1 Sampling Procedures for Inspection by Attributes Part 1; The batch by batch inspection sampling plan searched according to the acceptance quality limit (AQL) GB/T 5823 Terminology of Building Doors and Windows GB/T 14436 General Principles of Industrial Product Assurance Documents GB/T 32223 General Requirements for Building Doors and Windows Hardware 3 Terminology and Definitions GB/T 5823 and the following terms and definitions apply to this document. 3.1 Pin shot bolt is a device that has the locking function of double hinged door and window sashes. 3.1.1 Single action shot bolt is a bolt that can achieve one-way locking function. 3.1.2 Linkage bolt Connected shot bolt is a bolt that can simultaneously achieve bidirectional locking function
Function of testing report:
1. Project bidding: Issue authoritative third-party CMA/CNAS qualification report
2. Online e-commerce platform entry: Quality inspection report recognized by major e-commerce platforms 3. Used as a sales report: issuing legally effective testing reports to make consumers more confident 4. Papers and research: Provide professional personalized testing needs 5. Judicial services: providing scientific, fair, and accurate testing data 6. Industrial problem diagnosis: Verify the troubleshooting and correction of industrial production problemsBaijian and testing process:
1. Telephone communication and confirmation of requirements
2. Recommend solutions and confirm quotations 3. Mail samples and arrange testing 4. Progress tracking and result feedback 5. Provide reports and after-sales service 6. If urgent or priority processing is requiredTesting and testing characteristics:
1. The testing industry is fully covered, meeting different testing needs
2. Fully cover the laboratory and allocate localized testing nearby3. Engineers provide one-on-one services to make testing more accurate
4. Free initial testing, with no testing fees charged
5. Self service order delivery for free on-site sampling
6. Short cycle, low cost, and attentive service 7. Possess authoritative qualifications such as CMA, CNAS, CAL, etc 8. The testing report is authoritative and effective, and is generally used in China