BAIJIAN - Third party testing organization
This standard specifies the detection conditions、 detection methods、 error evaluation methods、 measurement uncertainty estimation methods、 and qualification evaluation rules for shape error、 direction error、 position error、 and runout in geometric tolerances. It also provides a detection and verification plan and examples for geometric errors. This standard is applicable to the detection and verification of workpiece geometric errors、 The following normative references are essential for the application of this document. For all referenced documents with H period、 only the dated version applies to this document. For all referenced documents that do not specify the 8th issue、 the new version (including all modification orders) is applicable to this document. GB/T 1182 Geometrical Specifications for Crystal Production (GPS) Geometric Tolerances for Shape、 Direction、 Position、 and Runout Tolerances GB/T 1184-1996 Geometric Specifications for Product (GPS) Tolerances without Individual Tolerance Values GB/T 4249 Tolerance Principles GB/T 4380 Evaluation of Roundness Errors、 Three point method GB/T16671 Geometrical Product Specifications (GPS) Geometric Tolerances * Large Entity Requirements、 *Requirements for Small Entities and Reversibility GB/T17851 Technical Specifications for Products (GPS) - Geometric Tolerances、 Datum and Reference Body Accumulation GB/T 18779.1 Technical Specifications for Geometric Dimensions of Products (GPS) - Measurement and Inspection of Workpieces and Measuring Equipment - Part 1: Rules for Determining Conformity or Non conformity According to Specifications - GB/T 18779.2 Technical Specifications for Geometric Dimensions of Products (GPS) - Measurement and Inspection of Workpieces and Measuring Equipment - Part 2; Guidelines for the Evaluation of Uncertainty in GPS Measurement in Calibration and Product Inspection of Measuring Equipment GB/T 18779.3 Geometrical Product Specifications (GPS) - Measurement Inspection of Workpieces and Measuring Equipment - Part 3: Guidelines for Consensus on the Expression of Measurement Uncertainty GB/T 18780.1 Geometrical Product Specifications (GPS) - Geometric Elements - Part 1: Basic Terms and Definitions GB/T 18780.2 Geometrical Product Specifications (GPS) Geometric primitives - Part 2: Extraction of centerline from cylindrical and conical surfaces Parallel and flat extraction center planes - Local dimensions for extraction requirements - GB/T 19022 Measurement management system - Requirements for measurement processes and equipment - GB/Z 20308 Geometrical specifications for sound products (GPS) - Overall planning - GB/T 24635.3 Geometrical specifications for products (GPS) - Coordinate measuring machines (CMM) - Techniques for determining measurement uncertainty - Part 3: Application of calibrated workpieces or standard parts - GB/Z 24637.1 Geometrical specifications for products (GPS) General Concepts - Part 1: Geometrical Product Specifications and Verification Modes GB/Z 24637.2- Geometrical Product Specifications (GPS) - General Concepts - Part 2: Basic Principles、 Specifications、 Operation Sets、 and Uncertainty ISO 1101 (E) - Geometrical Product Specifications (GPS) - Geometrical Tolerances of Form、 Orientation Location and run out)
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 problemsinspection 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