GB/T 32704-2016 English PDF

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GB/T 32704-2016: Safety requirements for laboratory instrument and equipment -- Balance instrument
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 32704-2016	379	Add to Cart	4 days	Safety requirements for laboratory instrument and equipment -- Balance instrument	Valid

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Basic data

Standard ID: GB/T 32704-2016 (GB/T32704-2016)
Description (Translated English): Safety requirements for laboratory instrument and equipment -- Balance instrument
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: N61
Classification of International Standard: 17.060; 71.040.10
Word Count Estimation: 19,132
Date of Issue: 2016-06-14
Date of Implementation: 2017-01-01
Quoted Standard: GB 3101-1993; GB 4793.1-2007; GB/T 11021-2014
Regulation (derived from): National Standard Announcement No. 8 of 2016
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 general specification for the safety of the design and methods of laboratory balances for the operator and the surrounding environment. This standard is applicable to the design and manufacture of laboratory balance instruments (hereinafter referred to as "balance").

GB/T 32704-2016: Safety requirements for laboratory instrument and equipment -- Balance instrument

---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.
Safety requirements for laboratory instrument and equipment.Balance instrument ICS 17.060; 71.040.10 N61 National Standards of People's Republic of China Laboratory equipment and equipment safety standard balance instrument 2016-06-14 release 2017-01-01 Implementation General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China China National Standardization Management Committee released Directory Preface I 1 Scope 1 2 normative reference document 1 3 Terms and definitions 1 4 Test 2 5 signs and documents 4 6 anti-shock 6 7 anti-mechanical hazards 12

8 Resistance to mechanical shock and impact

9 to prevent the spread of flame 12 10 balance temperature limits and heat resistance 12 11 components 14 Appendix A (Normative Appendix) Routine Tests 15

Foreword

This standard is drafted in accordance with the rules given in GB/T 1.1-2009. This standard is proposed by the China Machinery Industry Federation. This standard by the National Laboratory of Laboratory Equipment and Equipment Standardization (SAC/TC526) centralized. The main drafting of this standard. Shanghai Jingke Tianmei Scientific Instrument Co., Ltd., Changsha Xiangping Technology Development Co., Ltd., mechanical industry instrument Institute of Instrumentation Integrated Technology and Economy, Zhejiang Institute of Metrology and Testing Technology, China Instrument Industry Association Laboratory Instrument Branch, on Hai Liangping scientific instrumentation company, Shenyang Dragon Electronics Co., Ltd., Shanghai Precision Science Instrument Co., Ltd., Shanghai metering test technology Research Institute. The main drafters of this standard. Dong Li, Xiong Yifan, Zhang Guiling, Ge Rui, Wang Jia Long, Pan Ke Min, Zhang Zhi. Laboratory equipment and equipment safety standard balance instrument

1 Scope

This standard specifies the general specification for the safety and safety of instruments used in structural design and methods for operators and surroundings. This standard is applicable to the design and manufacture of laboratory balances instruments (hereinafter referred to as "balances").

2 normative reference documents

The following documents are indispensable for the application of this document. For dated references, only the dated edition applies to this article Pieces. For undated references, the latest edition (including all modifications) applies to this document. GB 3101-1993 General principles of quantity, unit and symbol GB 4793.1-2007 Safety requirements for electrical equipment for measurement, control and laboratory use - Part 1. General requirements Electrical insulation - Heat resistance and presentation method GB/T 11021-2014

3 terms and definitions

GB 4793.1-2007 Definitions and the following terms and definitions apply to this document. 3.1 anti-shock protection equipment 3.1.1 Class I equipment class Ⅰequipment Use the following methods to obtain protection against electric shock equipment. --- the use of basic insulation; --- also equipped with a connection device, so that those in the basic insulation once the failure will bring dangerous voltage conductive parts and buildings The protective earth conductor in the wiring is connected. Note. Class I equipment can have double insulation and reinforced insulation parts. 3.1.2 Class II equipment class Ⅱequipment Anti-shock protection not only rely on basic insulation, but also take additional safety protection equipment (such as the use of double insulation or reinforcement must Edge of the equipment), such equipment does not rely on the protection of grounding, do not rely on the installation of protective measures. 3.1.3 Class III equipment class Ⅲequipment The anti-shock protection is a device that is powered by a safety extra-low voltage (SELV) circuit and does not generate dangerous voltages. Note 1. The voltage limit under normal operating conditions is less than the specified value in 6.3.1a of GB 4793.1-2007 is considered to be a safety extra-low voltage. Note 2. For Class III equipment, although no anti-shock requirements, but the other requirements of this standard are applicable. 3.2 Protection isolation protectiveseparation Use basic protection and additional protection between circuits (basic insulation plus additional insulation or protective shield) or use such as reinforced insulation The protection of the protective measures. ......

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