GB/T 26548.2-2011 English PDF

US$674.00 · In stock
Delivery: <= 4 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB/T 26548.2-2011: Hand-held portable power tools -- Test methods for evaluation of vibration emission -- Part 2: Wrenches, nut runners and screwdrivers
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 26548.2-2011	674	Add to Cart	4 days	Hand-held portable power tools -- Test methods for evaluation of vibration emission -- Part 2: Wrenches, nut runners and screwdrivers	Valid

Similar standards

GB/T 45677   GB/T 5357   JB/T 3943   GB/T 26548.5   GB/T 26548.11   GB/T 26548.8   

Basic data

Standard ID: GB/T 26548.2-2011 (GB/T26548.2-2011)
Description (Translated English): Hand-held portable power tools -- Test methods for evaluation of vibration emission -- Part 2: Wrenches, nut runners and screwdrivers
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: J48
Classification of International Standard: 13.160; 25.140.10
Word Count Estimation: 34,368
Date of Issue: 2011-06-16
Date of Implementation: 2012-01-01
Quoted Standard: GB/T 25631-2010; ISO 2787-1984; ISO 5349-2001; ISO 17066-2007; EN 12096-1997; ISO 691-2005; ISO 5391-2003
Adopted Standard: ISO 28927-2-2009, IDT
Regulation (derived from): Announcement of Newly Approved National Standards No. 9 of 2011
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 provides for tightening and loosening threaded fasteners handheld motorized gas trigger, nut wrench and screwdriver handle parts hand-transmitted vibration radiation measurement test methods to determine the machine to run at a specific load conditions, the handle grip parts of the vibration of the type examination procedure. This method is only used for tightening test task, the measured results for comparing different models of the same type of machines. GB/T 26548 of this part apply to compressed air or other means Yu moving automatically shut down, ratchet or stall handheld machines that have the impact or pulse function, design pattern has straight handle, grip, bend or loop shank and so on. Scope includes drive head or square drive square hole is 6. 3mm ~ 40mm and other geometric dimensions of the machine. This section does not apply only for the design of anti-torque wrench.

GB/T 26548.2-2011: Hand-held portable power tools -- Test methods for evaluation of vibration emission -- Part 2: Wrenches, nut runners and screwdrivers

---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.
Hand-held portable power tools Test methods for evaluation of vibration emission Part 2. Wrenches, nutrunners and screwdrivers ICS 13.160; 25.140.10 J48 National Standards of People's Republic of China Portable handheld power tool vibration test method Part 2. gas trigger, wrench and screwdriver emission-Part 2. Wrenches, nutrunnersandscrewdrivers (ISO 28927-2.2009, IDT) Issued on. 2011-06-16 2012-01-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Table of Contents

Introduction Ⅲ Introduction Ⅳ 1 Scope 1 2 Normative references 1 3 Terms, definitions and symbols 1 4 basic criteria and test methods for vibration 3 5 unit type Description 3 6 vibration characteristics Description 5 7 Instrument requirements 9 Test and operating conditions of the machine 10 8 Measuring procedures and measuring the effectiveness of 9 14 10 14 Test Report Appendix A (informative) gas trigger, wrench and screwdriver Vibration Test Report Form 16 Appendix B (normative) Uncertainty OK 18 Annex C (normative) braking device assembly drawing and parts technical requirements 20 References 28

Foreword

GB/T 26548 "hand-held power tool vibration test method" is divided into the following sections. --- Part 1. Angle and face-type grinder; --- Part 2. gas trigger, wrench and screwdriver; --- Part 3. polishing machine, rotary and there is no trace track grinder; --- Part 4. Straight shank type grinder; --- Part 5. Drills and impact drill; --- Part 6. compaction machines; --- Part 7. Ironworkers and scissors; --- Part 8. reciprocating saws, polishers and rasp and small tilting or rotary saws; --- Part 9. rust hammers and needle beam Scaler; --- Part 10. Impact drills, hammers and crushers; --- Part 11. Stone hammers. This section GB/T 26548 Part 2. Since each part of ISO 8662 has been replaced by the corresponding part of ISO 28927, because The various parts of this standard is also expected to replace GB/T 8910 of the corresponding portion. This section drafted in accordance with GB/T 1.1-2009 given rules. This section uses the translation method identical with ISO 28927-2.2009 "held portable power tools - Test methods for vibration - Part 2. Gas trigger, wrench and screwdriver. " Consistency correspondence between this part of international documents and normative references of our files are as follows. --- GB/T 4390-2008 spanner wrench holes open and common tolerance (ISO 691.2005, MOD) --- GB/T 5621-2008 drilling machines and pneumatic tools Performance test methods (ISO 2787. 1984, MOD) --- GB/T 14790.1-2009 Mechanical vibration of human exposure to hand-transmitted vibration measurement and evaluation - Part 1. General requirements (ISO 5349.1.2001, IDT) This part made the following editorial changes. --- International standard "bar" in terms of "MPa" (1bar = 0.1MPa); --- Remove the international standard unit of length "in", leaving only the "mm"; --- International standard speed unit "min-1" to "r/min"; --- For ease of use and layout, the international standard in Appendix A Table A.2 in horizontal to vertical up and down the two-stage form. This part is proposed by China Machinery Industry Federation. This part of the drilling machines and pneumatic tools by the National Standardization Technical Committee (SAC/TC173) centralized. This section is drafted. Tianshui pneumatic drilling machines Tool Institute. The main drafters of this section. Sunbi Wu, Zhu Xun Hui.

Introduction

This document is a type C standard as specified in ISO 12100. For Class C in accordance with requirements of the standard design and manufacture of machinery, when different from the requirements of the standard class C Class A or Class B standard requirements When, C class standard requirements better than other types of standards. ISO 20643 gives the handheld and hand-guided general technical conditions of mechanical vibration radiation measurements. GB/T 26548 in the standard Basis, given vibration test methods handheld portable machine, provides machine running under test conditions and the type of type of inspection performance Other requirements, the standard structure and chapter numbers consistent with ISO 20643. This section uses a sensor positioned substantially described in the European standard EN60745 series was first introduced, because of continuity In the description and ISO 20643 inconsistent. The preferred sensor is placed in an area close to the hand between thumb and forefinger, because the position of Machine operator holds the minimum interference. It was discovered that normal use, vibration and trigger changes in gas generated in the nut wrench to tighten and loosen threaded fasteners in the process greatly. For shock and pulse the machine, it is mainly due to the different core machines and fasteners, pull sleeve wear or use universal joints and elbow Causes. In actual use, since the screwed tight time is very short, so the response time using vibration measurement equipment on the measurement results Says has become a key factor. Test methods can be given in order to provide a better reproducibility of the measurement results, this part of GB/T 26548 employs a test Inspection program, which shock and pulse machine, use a brake block action on test test test apparatus sleeve outer diameter of On another machine, then use the dry run test. When the vibration exposure in the workplace needs assessment, we are required to adopt the ISO 5349 method. The value obtained is the type of test values \u200b\u200bused to represent the average of the actual use of the machine in the upper quartile of typical vibration amounts. however, The actual value may vary widely, depending on many factors, including the operator, the tasks and the insertion tool or consumables. The machine itself Health care may also be important. Affect the operation and procedures of the amount of low-amplitude vibration is particularly important under real working conditions. therefore In this case, it is not recommended to use less than 2.5m/s2 radiation values \u200b\u200bto assess the amount of vibration under real working conditions. Recommended 2.5m/s2 To assess the magnitude of the vibration of the mechanical vibration. If a particular workplace requires accurate value, then it is necessary in this workplace is measured according to ISO 5349 requirements. In the actual work Vibration values \u200b\u200bmeasured under the conditions as may be higher than the values \u200b\u200bin this section GB/T 26548 obtained may also be low. In actual conditions, due to the different axes of the machine and fasteners, pull sleeve wear or use a universal joint or other reasons elbows easily generated Students of higher vibration. Do not touch the operator's arm rotating parts, such as pull sleeve extension rod or used. Test methods for vibration test method ISO 28927 given in place of the ISO 8662, ISO 8662 has the parts were The corresponding part of ISO 28927 is replaced. NOTE. ISO 8662-11 "held portable power tools - Measurement of vibrations at the handle - Part 11. nailing machine" and ISO 8662-13 "held portable power Tool measuring vibrations at the handle - Part 13. Die "will be replaced by a subsequent part of ISO 28927 with a grinder. Portable handheld power tool vibration test method Part 2. gas trigger, wrench and screwdriver

1 Scope

This section GB/T 26548 specifies the hand-propelled gas trigger, screw and nut wrench for tightening and unscrewing the threaded fasteners Standard Test Method for knife handle part of your hand transmitted vibration radiation measurements to determine the machine running under specified load conditions, the amount of vibrations at the handle grip The type test program. The method is only used to tighten the test task, the results of which measured for comparing different models of the same type of machine. This section GB/T 26548 apply to compressed air-driven or otherwise automatically shut down, ratchet or stall handheld machine (See Chapter 5), these machines have a shock or pulse function, design type straight handle, grip, angled ring shank or the like. Scope includes biography Moving head or square drive is 6.3mm ~ 40mm square hole geometry and other machines. This section does not apply only for the design of anti-torque wrench. NOTE. To avoid confusion, "power tool" and "insertion tool", the full text of the standard adopted in the past the term "machine."

2 Normative references

The following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein Member. For undated references, the latest edition (including any amendments) applies to this document. GB/T 25631-2010 mechanical vibration hand-held and hand-guided mechanical vibration evaluation rules (ISO 20643.2005, IDT) ISO 691.2005 Assembly tools for bolts and nuts with a wrench and socket openings - tolerances (Assemblytoolsforscrews andnuts-Wrenchandsocketopenings-Tolerancesforgeneraluse) ISO 2787. 1984 Rotary and impact pneumatic tools Performance Test (Rotaryandpercussivepneumatictools- Performancetests) ISO 5349.2001 (all parts), mechanical vibrations of human exposure to hand-transmitted vibration measurement and evaluation (Mechanicalvibration- Measurementandevaluationofhumanexposuretohand-transmittedvibration) ISO 5391.2003 pneumatic tools and machines vocabulary (Pneumatictoolsandmachines-Vocabulary) ISO 17066.2007 Hydraulic tools vocabulary (Hydraulictools-Vocabulary) EN12096.1997 Mechanical vibration emission values \u200b\u200bmarking and verification (Mechanicalvibration-Declarationand verificationofvibrationemissionvalues) 3 Terms, definitions and symbols GB/T 25631, ISO 5391, ISO 17066 and as defined in the following terms, definitions and symbols apply to this document. 3.1 Terms and Definitions 3.1.1 Loading device loadingdevice Braking device brakedevice For obtaining a stable output shaft rotational speed of the machine and the machine output energy absorbing device. ......

Image     

Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of GB/T 26548.2-2011_English be delivered?

Answer: Upon your order, we will start to translate GB/T 26548.2-2011_English as soon as possible, and keep you informed of the progress. The lead time is typically 2 ~ 4 working days. The lengthier the document the longer the lead time.

Question 2: Can I share the purchased PDF of GB/T 26548.2-2011_English with my colleagues?

Answer: Yes. The purchased PDF of GB/T 26548.2-2011_English will be deemed to be sold to your employer/organization who actually pays for it, including your colleagues and your employer's intranet.

Question 3: Does the price include tax/VAT?

Answer: Yes. Our tax invoice, downloaded/delivered in 9 seconds, includes all tax/VAT and complies with 100+ countries' tax regulations (tax exempted in 100+ countries) -- See Avoidance of Double Taxation Agreements (DTAs): List of DTAs signed between Singapore and 100+ countries

Question 4: Do you accept my currency other than USD?

Answer: Yes. If you need your currency to be printed on the invoice, please write an email to Sales@ChineseStandard.net. In 2 working-hours, we will create a special link for you to pay in any currencies. Otherwise, follow the normal steps: Add to Cart -- Checkout -- Select your currency to pay.