ASME B89.1.14-2018 Calipers Overview
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Questions and Answers

What is the appropriate way to phrase a question for interpretation of a standard?

  • As a detailed technical analysis of engineering problems.
  • As a request for approval of a proprietary design.
  • As an informal query without background information.
  • As a request for general understanding and use. (correct)

    • Which of the following is NOT a requirement for submitting an inquiry?

  • Compose a condensed and precise question.
  • Include background information to assist the Committee.
  • Provide proprietary names and information. (correct)
  • Present proposed replies in 'Yes' or 'No' format.

    • What should the proposed replies in an interpretation request consist of?

  • A summary of the committee's thoughts.
  • Detailed explanations only.
  • A list of previously answered inquiries.
  • Short 'Yes' or 'No' responses along with explanations. (correct)

    • What happens if an inquiry is not formatted correctly?

    <p>The original intent may be changed by the Committee.</p> Signup and view all the answers

    How can individuals attend Committee meetings or telephone conferences?

    <p>By contacting the Secretary of the B89 Standards Committee.</p> Signup and view all the answers

    Which response indicates how ASME treats specific engineering problems?

    <p>It does not provide consultancy for engineering issues.</p> Signup and view all the answers

    What can individuals do if they disagree with an interpretation provided by ASME?

    <p>Submit an appeal to the cognizant ASME Committee or Subcommittee.</p> Signup and view all the answers

    What must be included in the background information for an inquiry?

    <p>Plans or drawings applicable to the inquiry.</p> Signup and view all the answers

    What types of calipers does the Standard cover?

    <p>Vernier, dial, electronic digital, and specialty calipers</p> Signup and view all the answers

    ISO 13385-1 provides which of the following?

    <p>Metrological characteristics and design definitions</p> Signup and view all the answers

    What is the purpose of this Standard concerning ISO 13385-1?

    <p>It provides supplementary information for users</p> Signup and view all the answers

    Which document outlines the evaluation of measurement data?

    <p>JCGM 100:2008</p> Signup and view all the answers

    What does this Standard ensure regarding the calibration of calipers?

    <p>Enough detail for users to operate without ISO 13385-1</p> Signup and view all the answers

    Which of the following is NOT included in the definitions applicable to this Standard?

    <p>ISO 9001:2015</p> Signup and view all the answers

    What is a key characteristic discussed in relation to calipers within this Standard?

    <p>Design and metrological characteristics</p> Signup and view all the answers

    Which organization publishes the International vocabulary of metrology?

    <p>Joint Committee for Guides in Metrology (JCGM)</p> Signup and view all the answers

    What is the nominal coefficient of thermal expansion (CTE) specified for calipers within the temperature range of 10°C to 30°C?

    <p>(11.5 ± 1.0) × 10 − 6 /°C</p> Signup and view all the answers

    Which of the following errors is NOT listed as a metrological characteristic for calipers according to ISO 13385-1?

    <p>Mechanical wear error</p> Signup and view all the answers

    What must be performed to obtain the error of indication for a caliper if testing is conducted at a temperature other than the rated operating condition?

    <p>Temperature correction to 20°C (68°F)</p> Signup and view all the answers

    What is the default decision rule for determining the conformance of a caliper to specifications?

    <p>4:1 acceptance in accordance with ASME B89.7.3.1</p> Signup and view all the answers

    Which document provides guidance on evaluating measurement uncertainty for calipers?

    <p>JCGM 100 (GUM)</p> Signup and view all the answers

    What consequence may occur if temperature corrections to 20°C (68°F) are not performed during calibration?

    <p>Measurement uncertainties may be evaluated</p> Signup and view all the answers

    What do manufacturers need to state regarding metrological characteristics as per the specifications?

    <p>Maximum permissible error (MPE) values</p> Signup and view all the answers

    Which of the following errors is specific to the distance between crossed knife edges?

    <p>Error due to crossed knife-edge distance, K</p> Signup and view all the answers

    What action may ASME take regarding inquiries about interpretations of technical aspects of the Standard?

    <p>They provide written replies to inquiries.</p> Signup and view all the answers

    Where can interpretations of the technical aspects of the Standard be published?

    <p>On the Committee web page.</p> Signup and view all the answers

    What is the purpose of errata posted on the ASME website?

    <p>To correct typographical or grammatical errors.</p> Signup and view all the answers

    What does ASME not do regarding patents associated with items in the Standard?

    <p>They guarantee non-liability for infringement.</p> Signup and view all the answers

    How does ASME ensure diverse input for the proposed code or standard?

    <p>Through public review and comment opportunities.</p> Signup and view all the answers

    What type of organization is ASME registered as?

    <p>A professional engineering society</p> Signup and view all the answers

    What can individuals do to receive notifications about new errata postings?

    <p>Automatically receive emails on specific Committee Pages.</p> Signup and view all the answers

    What kind of balance is ensured in the Standards Committee that approves codes or standards?

    <p>Balance from competent and concerned interests.</p> Signup and view all the answers

    What must be included in a proposal for revisions to the Standard?

    <p>Citing the paragraph number(s)</p> Signup and view all the answers

    What is required in a request for a Case?

    <p>An identified Standard and paragraph number</p> Signup and view all the answers

    How can an Inquirer submit a request for an interpretation?

    <p>Utilizing the online Interpretation Submittal Form</p> Signup and view all the answers

    What information should be included in the subject line of an interpretation request?

    <p>The topic of inquiry and applicable paragraph number(s)</p> Signup and view all the answers

    What happens to approved revisions of the Standard?

    <p>They are published periodically</p> Signup and view all the answers

    What must a request for interpretation be in order to be effective?

    <p>Clear and unambiguous</p> Signup and view all the answers

    What does the term 'Cases' refer to in this context?

    <p>Alternative rules provided when justified</p> Signup and view all the answers

    Who can render interpretations of any requirement of the Standard?

    <p>The Secretary of the B89 Standards Committee</p> Signup and view all the answers

    What does MPE stand for in the context of calipers?

    <p>Maximum Permissible Error</p> Signup and view all the answers

    For calipers without an adjustable zero, what type of error may occur when measuring?

    <p>Nonzero error</p> Signup and view all the answers

    At what temperature are the specifications for calipers generally applied?

    <p>20°C (68°F)</p> Signup and view all the answers

    Which type of calipers might include unique measurement indications?

    <p>Specialty calipers also</p> Signup and view all the answers

    What must be considered when evaluating metrological characteristics of a caliper?

    <p>Nonzero errors</p> Signup and view all the answers

    Which standard must specifications for specialty calipers conform to?

    <p>ISO 13385-1</p> Signup and view all the answers

    What is not permitted when determining conformance to specifications?

    <p>Averaging of test values</p> Signup and view all the answers

    What type of measuring faces can be found on specialty calipers?

    <p>Spherical and conical measuring faces</p> Signup and view all the answers

    Study Notes

    ASME B89.1.14-2018 Calipers

    • This standard details the specifications, verification, and calibration of various caliper types (vernier, dial, digital, specialty)
    • ISO 13385-1 defines the international design and metrological characteristics of calipers
    • This standard complements but doesn't contradict ISO 13385-1. It includes detailed test methods, traceability, and uncertainty analyses.

    Scope

    • The standard covers the specification, verification, and calibration of calipers, including vernier, dial, electronic digital, and specialty types.

    Definitions

    • Definitions used align with ASME B89.7.1, ISO 13385-1:2011, and JCGM 200.

    References

    • Documents referenced include ASME standards and ISO standards, focusing on temperature, humidity, and measurement uncertainty.

    Caliper Design

    • Calipers feature a movable slider with measuring jaws against a stationary jaw for outside, inside, and depth measurements.
    • Design ensures compliance with standard requirements and ISO 13385-1.

    Least Count

    • Vernier calipers with SI units read to 0.05 mm or 0.02 mm.
    • Dial calipers using SI units read to 0.05 mm, 0.02 mm, or 0.01 mm.
    • Electronic digital calipers using SI units read to 0.01 mm.
    • US customary unit calipers have similar specifications.

    Maximum Permissible Errors (MPEs)

    • Table 5.8-1 provides default MPE values based on measured length up to 1000 mm (40 in) and are a function of the length.
    • Manufacturers may specify different MPE values for different caliper types.
    • MPE values given are both in SI units (mm) and US customary units (in).

    Operator

    • Operator proficiency impacts measurement accuracy.
    • The skill of the operator is a contributing factor in the measurement process.

    Zero Setting

    • Adjustable zero points allow for calibration adjustments.
    • Verification procedures must be adjusted for non-adjustable types.

    Traceability

    • Using calibrated devices (e.g., gage blocks) in tests is essential to demonstrate conformance to specifications.

    Temperature

    • Calibration and testing are performed at 20°C (68°F), or as specified.
    • Temperature corrections are needed if operating conditions are not at 20°C.

    Measurement Uncertainty

    • Uncertainty in the values of the tests is considered.
    • Factors like temperature variations, differences in material properties, and operator skill are documented.

    Metrological Characteristics

    • Key factors like partial surface contact error, repeatability, line contact error, scale shift error, are addressed.
    • Specialty calipers require manufacturer-specific specifications.

    Test Points

    • Sufficient test points are necessary to confirm the quality of the results.
    • Points should be evenly distributed within the measuring range.

    Good Operating Procedures

    • Maintenance and cleaning are essential for accurate measurements.
    • Storage conditions to prevent damage are necessary.

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    Related Documents

    ASME B89.1.14-2018 Calipers PDF

    Description

    This quiz explores the specifications, verification, and calibration of various types of calipers as outlined in the ASME B89.1.14-2018 standard. It also includes comparisons with ISO 13385-1 and provides insights into design and measurement techniques. Test your knowledge on these essential metrology tools!

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