JJG 658-1990 Replaced National Metrology and Inspection Regulations JJG

JJG 658-1990 Instruments for Measuring the Moisture Content of Grain with Bakin Method

Publish Date: 1990-02-26 Implement Date: 1990-12-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

Basic Information

Standard Code: JJG 658-1990

Standard Type: National standards

Standard Status: Replaced

is_force_gb: no

CCS Name: -

ICS Name: -

Publish Date: 1990-02-26

Implement Date: 1990-12-01

Publisher: The National Technical Supervision Bureau

Technical Committee: Shanghai Municipal Technical Supervision Bureau

Pages: 8 pages

Scope

The moisture meter measures the moisture content of grains by calculating the ratio of the weight lost by the sample after drying under specified conditions to the weight of the sample before drying, expressed as a percentage.
The moisture meter mainly consists of two parts: a drying device and a weighing device. The drying device includes: tunnel-type ovens, infrared heaters, far-infrared heaters, etc. The weighing device includes: quadrant scales, single-pan balances, etc.