GB/T 29249-2012Electronic weighing moisture analyzer of oven drying (English PDF)
电子称量式烘干法水分测定仪
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Issued by
SAMR; SAC
Level / Type
National · Recommended
Issue date
December 31, 2012
Implementation date
June 1, 2013
Scope
GB/T 29249-2012 is the English-translated version of 电子称量式烘干法水分测定仪.
GB/T 29249-2012 fixes the terms and definitions, the basic parameters, the requirements, the test methods, the inspection rules and the marking, packaging, transport and storage of the electronic weighing drying method moisture analyzer, which it shortens to moisture meter.
Clause 1 applies it to moisture meters that measure, by the electronic weighing drying method, the free moisture content of samples whose physical and chemical form is relatively stable, and states no other exclusion.
The body is laid out as scope, normative references, terms and definitions, basic parameters, requirements, test methods, inspection rules, marking, and packaging, transport and storage, with one informative annex A on the repeatability obtained by the sodium tartrate dihydrate method.
Clause 2 cites GB/T 191-2008 on pictorial marks for packaging, GB/T 2829-2002 on periodic inspection sampling, GB 4793.1-2007 on the safety of measurement, control and laboratory electrical equipment, GB/T 9969-2008 on instructions for industrial products, GB/T 11606-2007 on environmental test methods for analytical instruments, GB/T 12113-2003 on the measurement of touch current and protective conductor current, and the metrological regulations JJG 658-2010 on drying method moisture analyzers and JJG 1036-2008 on electronic balances.
Clause 3 defines five terms, the actual scale interval denoted d, the verification scale interval denoted e, the moisture content, taken as the proportion of water and volatile components in the sample from the mass lost in drying against the initial mass and expressed as a percentage, the moisture readability, the smallest change in moisture content the instrument can display, and the heating temperature range the instrument can be set to and display.
The draft breaks off at the end of clause 3, so the basic parameters and the requirements themselves are not visible. The page puts the standard forward from and places it with the China Machinery Industry Federation. It was issued on 31 December 2012 and has applied since 1 June 2013.
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Document preview — GB/T 29249-2012
National Standard of the People's Republic of China
- ICS
- 17.060
- Classification
- N 61
Issued by: State Administration for Market Regulation; Standardization Administration of the PRC
Contents
- Preface
- 1 Scope
- 2 Normative references
- 3 Terms and definitions
- 4 Basic parameters
- 5 requires
- 7 inspection rules
- 8 mark
- 9 packaging, transportation and storage
- Appendix A (informative) sodium tartrate dihydrate law repeatability
Foreword
This standard was drafted in accordance with GB/T 1.1-2009 given rules.
The standard proposed by China Machinery Industry Federation.
The standard by the China Machinery Industry Federation.
This standard is drafted by. Shenyang Dragon Electronics Co., Ltd., Liaoning Provincial Institute of Metrology, Shanghai Branch fine day US scientific instruments have Limited, of Instrumentation Technology and Economy Institute, China Instrument Industry Association Branch of laboratory equipment, Shaxiang long day Ping Equipment Co., Ltd., Ping Long Xiangjiang Technology Development Co., Ltd. Shanghai Ryohei Instrument.
Participated in the drafting of this standard. Hunan Institute of Metrology detection, measurement Shenyang Institute, Shanghai Hai Jing Instrument Co., Ltd., Shanghai meter Testing Technology Research Institute quantity, Shanghai Shun Yuheng Scientific Instruments Co., Ltd., Sartorius Scientific Instruments (Beijing) Co., Ltd., Shanghai Jing Min Bridge Dense Scientific Instruments Co., Ltd. Changzhou City, Fu-month weight.
1 Scope
This standard specifies the electronic weighing type drying method moisture analyzer terms and definitions, basic parameters, requirements, test methods, inspection rules, Signs, packaging, transportation and storage.
This standard applies to the physical form and chemical form relatively stable free moisture content of the samples were measured by electronic weighing drying method Moisture Analyzer (hereinafter referred to as moisture meter).
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 191-2008 Packaging - Pictorial signs
GB/T 2829-2002 periodic inspection Sampling procedures and tables (suitable for process stability test)
GB 4793.1-2007 measurement, control and laboratory safety requirements for electrical equipment - Part 1: General requirements
GB/T 9969-2008 General Industrial Product Manual
GB/T 11606-2007 analytical instruments environmental test methods
GB/T 12113-2003 touch current and protective conductor current measurement methods
JJG 658-2010 drying method moisture analyzer
JJG 1036-2008 electronic balance
3 Terms and Definitions
The following terms and definitions apply to this document.
3.1 Actual scale
Expressed in units of mass moisture meter to measure the difference between the two means of indication of the neighboring, represented by d.
3.2 Verification scale
Expressed in units of mass of moisture meter to measure the level and the means for dividing a value of metrology, represented by e.
3.3 Moisture content
The actual percentage of water samples and volatile components, namely the poor quality of the sample and the initial mass of the sample before and after drying ratio, expressed as a percentage (%) Said.
3.4 Readability moisture content
The minimum incremental change in the moisture content of moisture meter can be displayed as a percentage (%) said.
3.5 Heating temperature range
Moisture meter can be set to work and display the heating temperature of the upper and lower temperature range.
......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.
Referenced standards
Normative references
- GB/T 191-2008Graphical symbols marking for handling and storage of packages
- GB/T 2829-2002Sampling procedures and tables for periodic inspection by attributes
- GB 4793.1-2007Safety requirements for electrical equipment for measurement,control,andlaboratory use-Part 1:General requirements
- GB/T 9969-2008General principles for preparation of instructions for use of industrial products
- GB/T 11606-2007Methods of environmental test for analytical instruments
- GB/T 12113-2003Methods of measurement of touch current and protective conductor current
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Related Standards
GB 4793.1-2007 — Safety requirements for electrical equipment for measurement,control,andlaboratory use-Part 1:General requirements
GB/T 11606-2007 — Methods of environmental test for analytical instruments
GB/T 9969-2008 — General principles for preparation of instructions for use of industrial products
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