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GB/T 18798.5-2013 English PDF

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GB/T 18798.5-2013: Instant tea -- Part 5: Methods for determination of free-flow and compacted bulk densities
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GB/T 18798.5-2013English209 Add to Cart 3 days [Need to translate] Instant tea -- Part 5: Methods for determination of free-flow and compacted bulk densities Valid GB/T 18798.5-2013

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Basic data

Standard ID GB/T 18798.5-2013 (GB/T18798.5-2013)
Description (Translated English) Instant tea -- Part 5: Methods for determination of free-flow and compacted bulk densities
Sector / Industry National Standard (Recommended)
Classification of Chinese Standard X55
Classification of International Standard 67.140.10
Word Count Estimation 9,957
Quoted Standard ISO 787-11
Adopted Standard ISO 6770-1982, MOD
Regulation (derived from) National Standards Bulletin 2013 No. 27
Issuing agency(ies) General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China
Summary This standard specifies the determination of free-flowing solid instant tea packing density and close packing density of instruments and equipment, sampling, calculation procedures and results. This standard applies to the free flow of solid instant tea p

GB/T 18798.5-2013: Instant tea -- Part 5: Methods for determination of free-flow and compacted bulk densities


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Instant tea Part 5.. Methods for determination of free-flow and compacted bulk densities ICS 67.140.10 X55 National Standards of People's Republic of China Solid instant tea - Part 5. free-flowing and Close packing density determination Instanttea-Part 5. Methodsfordeterminationoffree-flow (ISO 6770. 1982, Instanttea-Determindtionoffree-flow andcompactedbulkdensities, MOD) Issued on. 2013-12-31 2014-06-22 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Foreword

GB/T 18798 "solid instant tea" into the following sections. --- Part 1. Sampling; --- Part 2. Determination of total ash; --- Part 3. Determination of moisture content; --- Part 4. Specifications; --- Part 5. freedom of movement and close packing density. This section GB/T 18798 Part 5. This section drafted in accordance with GB/T 1.1-2009 given rules. This section uses redrafted law revision of international standards ISO 6770. 1982 "the free flow of instant tea and tight bulk density Determination. " This part of ISO 6770. 1982 as compared to the main technical differences are as follows. --- Modify the free flow bulk density measuring device size requirements; Cylinder minimum scale value --- 10.3.2 graduated, ISO 6770. 1982 requirements 2mL, this section to 1mL; --- 12.1 tapped powder after reading the volume within the cylinder, ISO 6770. 1982 requirements for the accuracy of 2mL, accurate to read this section 1mL; --- Remove the ISO 6770. 1982 in Chapter 9 of the test report; --- Remove the ISO 6770. 1982, Chapter 16 in the test report. The structural part made of the following modifications. --- The ISO 6770. 1982 in Chapter 3, biasing the present section 3.1; --- The ISO 6770. 1982 in Chapter 10, biasing the present section 3.2. This part made the following editorial changes. --- Remove the foreword and introduction of international standards; --- "This International Standard" be replaced by "of this section." This part is proposed by the China Federation of Supply and Marketing Cooperatives. This part of the National Technical Committee of Standardization Tea (SAC/TC339) centralized. This section was drafted by. China Federation of Supply and Marketing Cooperatives Hangzhou Tea Research Institute, the National Tea Quality Supervision and Inspection Center. The main drafters of this section. Zouxin Wu, Yangxiu Fang, Tang Xiaolin, Xu Jianfeng, Sun Qinglei. Solid instant tea - Part 5. free-flowing and Close packing density determination

1 Scope

GB/T 18798 provisions of this part of the determination of solid instant tea free flow bulk density and compact bulk density instruments and equipment, Sampling procedures and calculations results. This section applies to a free-flowing solid instant tea bulk density and compact bulk density determination.

2 Normative references

The following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein Member. For undated references, the latest edition (including any amendments) applies to this document. General test method ISO 787-11 pigments and extenders - Part 11. compacted volume and apparent density after compaction (Generalmethodsoftestforpigmentsandextenders-Part 11. Determinationoftampedvolumeand apparentdensityaftertamping)

3 Terms and Definitions

The following terms and definitions apply to this document. 3.1 Free flow bulk density of free-flowbulkdensities Under specified conditions, the ratio of freely dumped into a container after the quality and volume. Units of grams per milliliter (g/mL). 3.2 Close packing density compactedbulkdensities Vibration ratio of mass to volume (typically 100) after being under specified conditions. Units of grams per milliliter (g/mL). Determination of free-flowing bulk density Principle 4 The sample is injected through a funnel into a particular specific container of known volume and mass and weigh the contents of the container quality. 5. Apparatus 5.1 Balances Accuracy of 0.1g.

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