BAIJIAN - Third party testing organization
This standard specifies the terms and definitions、 forms and basic parameters、 requirements、 inspection conditions、 inspection methods、 testing methods、 marking、 and packaging of vernier tooth thickness calipers、 surface tooth thickness calipers、 and digital display tooth thickness calipers. This standard is applicable to vernier tooth thickness calipers with a division value/resolution of 0.01 mm and 0.02 mm. The measurement range of gear modulus is (1-16) mm、 (1-26) mm、 (5-32) mm、 and (15-55) mm、 Tooth thickness calipers with gauges and digital display calipers (hereinafter referred to as "tooth thickness calipers"). 2 Normative reference documents The clauses in the following documents become clauses of this standard through the reference surface of this standard. For dated reference documents、 all subsequent modification orders (excluding corrected content) Neither the revised version nor the revised version is applicable to this standard. However、 all parties to the agreement based on this standard are encouraged to study whether new versions of these documents can be used. For undated reference documents、 the new version of * applies to this standard. GB/T 1800.1-1997 * Limits and Coordination Fundamentals Part I; Vocabulary GB/T2423.3-1993 Basic Environmental Testing Procedures for Electrical and Electronic Products、 Test ℃=Constant Damp Heat Test Method (eqv IEC6O068-2-31984) GB/T2423.2-2002 Environmental Testing for Electrical and Electronic Products Part 2. Test method: Test N、 Temperature changes "IEC60068-2-14:1984. IDT) GB 4208-1993 Degrees of Protection Provided by Enclosures (IP Code)" (eqv lEC 5291989> GB/T 17163 Basic Terminology of Geometric Measurement Instruments GB/T17164 Terminology of Geometric Measurement Instruments - Product Terminology GB/T 17626、2-1998 Electromagnetic Compatibility Testing and Measurement Techniques - Electrostatic Discharge Reactance Test (IEC 61000-4-21995. DT) GB/T17626.3-1998 Electromagnetic Compatibility - Testing and Measurement Techniques - Radio Frequency Electromagnetic Field Radiation Immunity Test (IEC61000-4-31995.lDT) 3 Terminology and Definitions GB/T1800.1-1997、 GB/T 17163、 and GB/T 17164、 as well as the following terms and definitions、 apply to this standard. 3.1 Response speed: When the digital display gear exposure caliper can display values normally、 the * large movement speed of the ruler frame relative to the main ruler. 3.2 * Large Allowable Error (MPE) The maximum permissible error is the error limit specified by technical specifications、 rules、 and other regulations for the tooth two calipers. Note. The noise limit value of the allowable error cannot be less than the digital tweezers difference (foot force) or the interval between verniers
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