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GB/T 6970-2025Testing methods for grain driers (English PDF)

粮食干燥机试验方法

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Issued by

SAMR; SAC

Level / Type

National · Recommended

Issue date

October 5, 2025

Implementation date

May 1, 2026

Scope

GB/T 6970-2025 is the English-translated version of 粮食干燥机试验方法.

GB/T 6970-2025 is the Chinese standard "Testing methods for grain driers". Its scope clause reads: This document describes the performance testing methods, production testing methods, and test reports for grain dryers.

This document applies to the testing of continuous grain dryers and circulating grain dryers. Its clauses include terms and definitions.

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Document preview — GB/T 6970-2025

National Standard of the People's Republic of China

ICS
65.060.99
Classification
B 91
Replacing
GB/T 6970-2007

Issued by: State Administration for Market Regulation; Standardization Administration of the PRC

Contents

  • Preface
  • 1.Scope
  • 2 Normative References
  • 3.Terms and Definitions
  • 4.Performance Test
  • 4.1 Test Conditions
  • 4.2 Dryer Commissioning
  • 4.3 Sampling
  • 4.4 Sample Preparation
  • 4.5 Test Procedure
  • 4.6 Experimental Data Processing
  • 5.Production Trial
  • 5.1 Test Requirements
  • 5.2 Test Content
  • 5.3 Calculation of Technical and Economic Indicators
  • 5.4 Reliability
  • 6 Test Report

1 Scope

This document describes the performance testing methods, production testing methods, and test reports for grain dryers.

This document applies to the testing of continuous grain dryers and circulating grain dryers.

2 Normative references

The contents of the following documents, through normative references within the text, constitute essential provisions of this document. Dated citations are not included.

For references to documents, only the version corresponding to that date applies to this document; for undated references, the latest version (including all amendments) applies.

This document.

GB/T 1236 Performance Test of Standardized Air Ducts for Industrial Ventilation Fans

GB 5009.3 National Food Safety Standard - Determination of Moisture in Food

GB/T 5490 General Rules for Inspection of Grains and Oils

GB/T 5491 Sampling and Divided Sampling Methods for the Inspection of Grains and Oils

GB/T 5492 Grain and Oil Inspection. Identification of Color, Odor, and Taste of Grains and Oils

GB/T 5506.2 Wheat and wheat flour gluten content – Part 2.Instrumental determination of wet gluten and gluten index

GB/T 5510 Grain and Oil Inspection - Determination of Fatty Acid Values of Cereals and Their Products

GB/T 5667-2008 Agricultural Machinery Production Test Methods

GB/T 10595 Belt Conveyors

GB 13271-2014 Emission Standard of Air Pollutants for Boilers

GB/T 14095 Technical Terminology for Drying Agricultural Products

GB/T 16157 Determination of particulate matter and sampling methods for gaseous pollutants in exhaust gas from stationary sources

GB/T 19839 General Technical Requirements for Industrial Oil and Gas Burners

GB/T 21015-2023 Technical Specification for Rice Drying

GB/T 21016-2023 Technical Specification for Wheat Drying

GB/T 21017-2021 Technical Specification for Corn Drying

GB/T 37519 Bucket Elevator for Grain and Oil Machinery

GBZ /T 189.8 Measurement of physical factors in the workplace - Part 8.Noise

GBZ /T 192.1 Determination of dust in workplace air – Part 1.Total dust concentration

JB/T 14868 Biomass Pellet Hot Blast Furnace

NB/T 10156 General Technical Specification for Air Source Heat Pump Drying Units

SN/T 0800.7 Inspection Method for Imperfect Grains, Oilseeds and Feed for Export

3 Terms and Definitions

The terms and definitions defined in GB/T 14095 apply to this document. […]

......
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

Editions of GB/T 6970

EditionTitleRevisionStatus
GB/T 6970-2025Testing methods for grain drierscurrent editionCurrent
GB/T 6970-2007Testing methods for grain driersprevious editionIn force

This page sells the current edition, GB/T 6970-2025. Earlier editions are listed for reference only.

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