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JJF 1380-2012 English PDF

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JJF 1380-2012: Program of Pattern Evaluation of Capacitive and Resistive Grain Moisture Testers
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JJF 1380-2012English669 Add to Cart 5 days [Need to translate] Program of Pattern Evaluation of Capacitive and Resistive Grain Moisture Testers Valid JJF 1380-2012

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Basic data

Standard ID JJF 1380-2012 (JJF1380-2012)
Description (Translated English) Program of Pattern Evaluation of Capacitive and Resistive Grain Moisture Testers
Sector / Industry Metrology & Measurement Industry Standard
Word Count Estimation 29,252
Quoted Standard JJG 891-1995; GB 5497-1985; GB/T 11606-2007; GB/T 19878-2005
Regulation (derived from) AQSIQ Announcement No. 212 of 2012
Issuing agency(ies) General Administration of Quality Supervision, Inspection and Quarantine
Summary This standard applies to 0. 5 and a sample analysis method and the resistance method capacitive grain moisture analyzer (hereinafter referred to as grain moisture meter or instrument) the type evaluation, does not apply to on-line or plug pin grain moistu

JJF 1380-2012: Program of Pattern Evaluation of Capacitive and Resistive Grain Moisture Testers

---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.
Program of Pattern Evaluation of Capacitive and Resistive Grain Moisture Testers People's Republic of China National Metrology Technical Specifications Capacitance method and the resistance method grain moisture Tester type evaluation outline Issued on. 2012-12-21 2013-03-21 implementation The State Administration of Quality Supervision, Inspection and Quarantine released Capacitance method and the resistance method grain moisture Tester type evaluation outline Focal point. the National Technical Committee stoichiometric physical Drafting. Shanghai Institute of Measurement and Testing This specification stoichiometric commissioned National Technical Committee is responsible for the physical interpretation The main drafters of this specification. Zhang Wendong (Shanghai Institute of Measurement and Testing) Drafters participate. Zhang Yong (Shanghai Institute of Measurement and Testing) Cui body Yun (Shanghai Institute of Measurement and Testing)

table of Contents

Introduction (Ⅱ) 1 Scope (1) 2. References (1) 3 Terms (1) 3.1 Grain Moisture (1) 4 Overview (1) 5 provides a review of technical information and test prototype (1) 5.1 Technical Information (1) 5.2 Test Prototype (2) 6 legal management requirements (2) 6.1 units of measurement (2) 6.2 accuracy class (2) 6.3 legal metrology marking and identification of measuring instruments (2) 7 metrological requirements (2) 7.1 Scope and instrument moisture measurement range (2) 7.2 indication error and repeatability (3) 7.3 adaptive power supply voltage (3) 8 General technical requirements (3) 8.1 Appearance and other requirements (3) Safety 8.2 (4) 8.3 environmental adaptability (4) 8.4 Transport storage properties (4) 9 type evaluation of the project (5) 10 test conditions and methods (6) 10.1 test environment condition (6) 10.2 metrological requirements (6) 10.3 General Requirements (8) Processing 11 types of evaluation results (10) 11.1 determination principle (10) 11.2 Type Evaluation Report (10) A determination of moisture content of grain samples appendix (11) Preparation Method B Grain moisture content of the sample appendix (14) Appendix C capacitance method and the resistance method grain moisture meter original record format (16)

Introduction

This type of evaluation outline technical requirements for instrument supply voltage adaptability, security, performance and testing projects Methods GB/T 19878-2005 "capacitance method and the resistance method grain moisture tester General technical conditions" in the Related content; technical requirements and test methods for transport and storage projects using GB/T 11606-2007 "Analytical Instruments ring Environmental test methods "in the relevant content; and performance test methods for measuring instruments using JJG891-1995" capacitance Law and resistance method grain moisture meter "in the relevant content. This type of evaluation outline for the first release. This outline Appendix A, Appendix B and Appendix C are normative appendix. Capacitance method and the resistance method grain moisture Tester type evaluation outline

1 Scope

This outline is applied to 0.5 Level 1 and capacitor sample analysis method and the resistance method grain moisture meter (hereinafter referred to as Grain moisture meter or instrument) of pattern evaluation, does not apply to on-line or plug pin grain moisture meter type evaluation. 2. References JJG891-1995 capacitance method and the resistance method grain moisture meter GB 5497-1985 grain and oilseeds test determination of moisture content GB/T 11606-2007 analytical instruments environmental test methods GB/T 19878-2005 capacitance method and the resistance method grain moisture tester General technical conditions These documents contain provisions which through reference in this syllabus constitute provisions of this outline. For dated reference documents Member, all subsequent amendments (not including errata content) or revisions do not apply to this syllabus, however, the drum Reed whether the latest versions of these files according to the parties that this outline agreement. Those who do not note cited date Use, the latest versions apply to this outline.

3 Terms

3.1 Grain Moisture grainmoisture Grain moisture refers to the weight of water and wet weight of the cereal grain percentage contained, also known as grain moisture content.

4 Overview

Grain moisture meter is mainly used for rapid determination of moisture content of grain. Capacitance method is the use of grain moisture meter grain moisture content and its dielectric properties of the corresponding relationship between the design and manufacture of electrical The instrument, which consists of capacitive sensors (measuring cylinder), off the barrel and secondary instrument, and some also have weighing and temperature measurement Means for sample temperature and weight compensation. Fall into the measuring cylinder barrel role is to ensure that when each measurement cereals Sample state consistency. Resistance method grain moisture analyzer is the existence of a correspondence between grain moisture content designed according to its resistivity Manufacturing equipment. It consists of measuring head and the second instrument configuration, measuring head with a grain sample crushing device and remains constant Pressurizing means power to ensure that each measurement is consistent with the degree of compaction sample.

5 to provide technical information and test prototype review

5.1 Technical Information 5.1.1 prototype photos; 5.1.2 product standards (including test methods);

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