GB/T 39823-2021 English PDF

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GB/T 39823-2021: Light conveyor belts - Tolerances on widths and lengths of cut light conveyor belts
Status: Valid

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GB/T 39823-2021	119	Add to Cart	3 days	Light conveyor belts - Tolerances on widths and lengths of cut light conveyor belts	Valid

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Basic data

Standard ID: GB/T 39823-2021 (GB/T39823-2021)
Description (Translated English): Light conveyor belts - Tolerances on widths and lengths of cut light conveyor belts
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: G42
Word Count Estimation: 6,643
Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration

GB/T 39823-2021: Light conveyor belts - Tolerances on widths and lengths of cut light conveyor belts

---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.
Light conveyor belts - Tolerances on widths and lengths of cut light conveyor belts ICS 53.040.20 G42 National Standards of People's Republic of China Lightweight Conveyor Belt Cutting Type Lightweight Conveyor Belt Width and length limit deviation conveyorbelts (ISO 15147.2012, MOD) Released on 2021-03-09 2021-10-01 implementation State Administration of Market Supervision and Administration Issued by the National Standardization Management Committee

Foreword

This standard was drafted in accordance with the rules given in GB/T 1.1-2009. This standard uses the redrafting method to amend and adopt ISO 15147.2012 "The width and length of cutting light conveyor belts for light conveyor belts" limit deviation". Compared with ISO 15147.2012, this standard has technical differences. The vertical single line (|) of the setting is marked, and the technical differences and their reasons are as follows. ---Regarding normative references, this standard is adjusted as follows. ● Replace ISO 21183-1 (see Chapter 1) with GB/T 39825 modified to adopt international standards, and change it to reference; ● Added reference to ISO 21183-2 (see Chapter 3). --- Added terms and definitions to apply my country's technical conditions (see Chapter 3). This standard was proposed by the China Petroleum and Chemical Industry Federation. This standard is under the jurisdiction of the National Belt Wheel and Belt Standardization Technical Committee Conveyor Belt Subcommittee (SAC/TC428/SC1). Drafting organizations of this standard. Qingdao Shinkansen Technical Consulting Co., Ltd., Shanghai Yongli Belt Industry Co., Ltd., Qingdao University of Science and Technology. The main drafters of this standard. Lu Guiqin, Xie Wenfeng, Xin Yonglu. Lightweight Conveyor Belt Cutting Type Lightweight Conveyor Belt Width and length limit deviation

1 Scope

This standard specifies the measurement method and limit deviation of the length and width of the cutting light conveyor belt described in GB/T 39825. This standard applies to light conveyor belts.

2 Normative references

The following documents are indispensable for the application of this document. For dated reference documents, only the dated version applies to this article Pieces. For undated reference documents, the latest version (including all amendments) is applicable to this document. ISO 21183-2 Light Conveyor Belt Part 2.Equivalent Terminology (Lightconveyorbelts-Part 2.Listof equivalentterms)

3 Terms and definitions

The terms and definitions defined in ISO 21183-2 apply to this document.

4 width

When measuring according to 6.1, the deviation between the measured width of the belt and the specified cutting width should not be greater than the specified value in Table 1. For cutting light conveyor belts with a cutting width of not more than 1m, the actual cutting width should be increased in order at an interval of 50mm; cutting width For cutting light conveyor belts larger than 1m, the actual cutting width is increased in order at 100mm intervals. Table 1 Limit deviation of cutting width of light conveyor belt width mm > ≤ Tapes containing low moisture absorption materials (e.g. polyester) Tapes containing high moisture absorption materials (e.g. cotton or nylon) -200 ±1mm ±2mm 200 600 ±2mm ±3mm 600 1000 ±4mm ±5mm 1000.2000 ±6mm ±6mm 2000 4000 ±7mm ±(width×0.3%) 4000-±8mm ±(width×0.3%) ......

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