JJF 1355-2012Program of Pattern Evaluation for Non-automatic Weighing Instruments (Analogue Indicating Weighing Instruments) (English PDF)

1 Scope (1)

2 References (1)

3 Terms (1)

4 Overview (1)

5 Legal management requirements (2)

6 Measurement requirements (3)

7 General Requirements (5)

8 Pattern evaluation item list (6)

Test methods and test conditions 9 items (7)

Introduction

JJF 1355-2012 "non-automatic scales (indicating analogue scales) Type Evaluation Outline" Modify adopted OIMLR76-1.2006, "non-automatic weighing instrument" international recommendations relating to the provisions indicating analogue scales, taking the GB/T 11884-2008 "Spring dial scale" developed from the relevant technical requirements. Replace JJG555-1996 "non-automatic weighing Universal Test procedures, "the relevant provisions indicating analogue scales. In the preparation of the implementation of the format JJF 1016-2009 "Measuring Instruments Type evaluation outline guidelines for the preparation "requirement.

Non-automatic scales (indicating analogue scale) Type Evaluation Outline

1 Scope

This outline is applicable to States according to the management's level of accuracy and non-automatic weighing accuracy level of ordinary (analog means Scales shown) (hereinafter referred to as "indicating analogue scale") of pattern evaluation. This outline does not apply to non-fixed suspension simulation Indicating scales.

2. References

JJF 1181 metrological terminology and definitions GB/T 11884-2008 spring dial scale GB/T 14250 Weighing term OIMLR76-1.2006 Non-automatic weighing instruments Part I. metrological and technical requirements - Test (Non-auto-maticweighinginstrumentsPart 1. Metrologicalandtechnicalrequirement-Test) OIMLR76-2.2007 Non-automatic weighing instruments Part II. Test Report Form (Non-automatic weighinginstrumentsPart 2. Testreportformat) 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 in this outline. However, to encourage Whether the latest versions of these files according to the parties that this outline agreement. For undated references the , The latest versions apply to this outline.

3 Terms

JJF 1181-2007 "metrological terminology and definitions", GB/T 14250-2008 "Weighing term" and GB/T 11884-2008 "spring dial scale" in terms apply to this outline.

In this paper, the main symbol involved.

Max. maximum capacity;

Min. minimum capacity;

e. verification scale.

4 Overview

Indicating analogue scale is. A spring is a load cell, the scale pointer and dial direct. As spring dial scale and so on.

Spring dial scale principle. it is the use of a spring deformed by external force, that it is within the elastic limit of the spring Deformation and Hooke's law and an external force proportional to the work.

Spring dial scale structure. mainly by load-bearing means, metering spring means, gear, zero means and shell Composition, in order to reduce the effect of temperature changes on the weighing indication, but also equipped with a temperature compensation device.