GB/T 14790.1-2009 English PDFUS$554.00 · In stock
Delivery: <= 4 days. True-PDF full-copy in English will be manually translated and delivered via email. GB/T 14790.1-2009: Mechanical vibration -- Measurement and evaluation of human exposure to hand-transmitted vibration -- Part 1: General requirements Status: Valid GB/T 14790.1: Historical versions
Basic dataStandard ID: GB/T 14790.1-2009 (GB/T14790.1-2009)Description (Translated English): Mechanical vibration -- Measurement and evaluation of human exposure to hand-transmitted vibration -- Part 1: General requirements Sector / Industry: National Standard (Recommended) Classification of Chinese Standard: C71 Classification of International Standard: 13.160 Word Count Estimation: 28,270 Date of Issue: 2009-04-24 Date of Implementation: 2009-12-01 Older Standard (superseded by this standard): GB/T 14790-1993 Adopted Standard: ISO 5349-1-2001, IDT Regulation (derived from): National Standard Announcement 2009 No.6 (Total No.146) Issuing agency(ies): General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China Summary: This standard specifies the measurement and reporting of hand-transmitted vibration exposure of the general requirements in the three orthogonal axes. This section specifies the frequency weighting and band limiting filter required to make comparative measurements can be unified. Measured value obtained is used to predict 8Hz to 1000Hz octave frequency range covering the hand transmitted vibration harmful effects. This section applies to periodic and random vibration or aperiodic. This section also applies to temporary shocks repetitive excitation (shock). Note 1: The time-dependent response of the body to the repetitive impact has not been fully understood. This part of such vibrations when applied carefully. This section gives an evaluation guide to hand-transmitted vibration frequency weighted vibration acceleration and exposure time expressed in days of exposure. This section does not provide a safe vibration exposure limits. Note 2: Appendix C is concerned is considered to have an impact on the health of the vibration exposure relative importance of various characteristics. GB/T 14790.1-2009: Mechanical vibration -- Measurement and evaluation of human exposure to hand-transmitted vibration -- Part 1: General requirements---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order. . Mechanical vibration Measurement and evaluation of human exposure to hand-transmitted vibration Part 1. General requirements ICS 13.160 C71 National Standards of People's Republic of China GB/T 14790.1-2009/ISO 5349-1.2001 Replacing GB/T 14790-1993 Mechanical vibration Human exposure to hand-transmitted vibration measurement and evaluation Part 1. General requirements (ISO 5349-1.2001, IDT) Posted 2009-12-01 2009-04-24 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released Table of ContentsIntroduction Ⅲ Introduction Ⅳ 1 Scope 1 2 Normative references 1 3 Terms, definitions and symbols 1 4 hand-transmitted vibration characteristics 2 5 hand-transmitted vibration exposure characteristics 4 6 report information 5 Appendix A (normative) frequency weighting and band limiting filter 6 Annex B (informative) hand-transmitted vibration Health Effects Guide 9 Annex C (informative) Relationship between vibration exposure and health effects 13 Human exposure to hand-transmitted vibration effect factors in Appendix D (informative) working conditions that may affect 15 Precautions Appendix E (normative) responsible for occupational health and safety agency should take 16 Annex F (informative) report additional information Guide 18 References 20 GB/T 14790.1-2009/ISO 5349-1.2001ForewordGB/T 14790 "Mechanical vibration of human exposure to hand-transmitted vibration measurement and evaluation" is divided into two parts. --- Part 1. General requirements; --- Part 2. A Practical Guide to Workplace measurements. This section GB/T 14790 Part 1. This section identical with ISO 5349-1.2001 "Mechanical vibration of human exposure to hand-transmitted vibration measurement and evaluation - Part 1. a General requirements "(in English). For ease of use, for ISO 5349-1.2001 This part made the following editorial changes. --- With "this Part" instead of "international standard ISO 5349 in this section"; --- Use the decimal symbol instead of decimal symbol ",". ","; --- Remove the ISO 5349-1. Preface 2001; --- Introduction of international standards were modified, according to GB/T 1.1 part of the provisions of the international standards into the Foreword Part Minute introduction; --- Table title and figure caption format according to GB/T 1.1 provisions were modified; --- Footnote to the provisions of note; --- References in the part of the international standards to national standards equivalent thereto. This Part replaces GB/T 14790-1993 "human exposure to hand-transmitted vibration measurement and evaluation methods." Section compared with the GB/T 14790-1993 The main changes are as follows. --- This part of the degree of consistency with ISO 5349-1 as equivalent, while the previous version was equivalent. --- Vibration exposure assessment in this section is based on the total value of vibration that three axial frequency weighted rms acceleration component squares and square root. The previous version, the evaluation is based on the frequency-weighted rms acceleration value of the maximum axial component. --- This section 8h daily exposure to vibration energy such as Gross weighting, the previous version is used in 4h and other energy-weighted acceleration; before A version of the daily exposure of the reference time is 4h, this portion of the reference time to 8h. --- This part of the Appendix A mathematically predetermined frequency weighting filter characteristic curve contains weighting band limitation described And the corresponding weighting factor and the previous version is slightly different curve. --- This new section in Appendix A, Appendix B, Appendix C, Appendix D, Appendix E, Appendix F, and canceled the previous version of Appendix A content. Appendix A of this section is normative appendix, Appendix B, Appendix C, Appendix D, Annex E and Annex F is informative appendix. This part of the National mechanical vibration, shock and condition monitoring Standardization Technical Committee (SAC/TC53) and focal points. 3 Terms, definitions and symbols 3.1 Terms and Definitions ISO 2041 terms and definitions established in this section apply. Note. For purposes of this section the convenience of users, and medical conditions associated vocabulary is given in Appendix B. 3.2 Symbol This section uses the following symbols. Uniaxial Rao hw to hand-transmitted vibration frequency weighted rms acceleration (r.m.s) value, in m/s2; Rao hwx, Rao hwy, Rao hwz representing x0 axis, y-axis value hw Rao and z axes, in units of m/s2; Rao hv frequency weighted rms acceleration vibration total value (or sometimes called vector and acceleration and frequency weighting), corresponding three measurements Axial measurements Rao hw value of the square and the square root of units of m/s2; Rao hv (eq, 8h) daily vibration exposure (8H gross energy such as vibration), in units of m/s2; A (8) daily vibration exposure Rao hv (eq, 8h) simplified alternative terminology; Dy average total population (cumulative) exposure time, years; T total daily exposure to vibration Rao hv of time; T0 8h (28800s) reference time; Wh hand-transmitted vibration frequency weighting characteristics. 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