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GB/T 18798.3-2008 English PDF

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GB/T 18798.3-2008: Instant tea in solid form -- Part 3: Determination of moisture content
Status: Obsolete

GB/T 18798.3: Evolution and historical versions

Standard IDContents [version]USDSTEP2[PDF] delivered inStandard Title (Description)StatusPDF
GB/T 18798.3-2008English199 Add to Cart 2 days [Need to translate] Instant tea in solid form -- Part 3: Determination of moisture content Obsolete GB/T 18798.3-2008
GB/T 18798.3-2002English239 Add to Cart 2 days [Need to translate] Instant tea in solid from -- Determination of moisture content Obsolete GB/T 18798.3-2002

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Basic data

Standard ID GB/T 18798.3-2008 (GB/T18798.3-2008)
Description (Translated English) Instant tea in solid form -- Part 3: Determination of moisture content
Sector / Industry National Standard (Recommended)
Classification of Chinese Standard X55
Classification of International Standard 67.140.10
Word Count Estimation 5,587
Date of Issue 2008-08-12
Date of Implementation 2009-03-01
Older Standard (superseded by this standard) GB/T 18798.3-2002
Quoted Standard GB/T 18798.1
Adopted Standard ISO 7513-1990, MOD
Regulation (derived from) National Standard Approval Announcement 2008 No.14 (Total No.127)
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 provides for the principle of instant tea in solid moisture determination, operating methods and results calculation methods, instruments and appliances. This section applies to the determination of moisture solid instant tea.

GB/T 18798.3-2008: Instant tea in solid form -- Part 3: Determination of moisture content

---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.
Instant tea in solid form Part 3. Determination of moisture content ICS 67.140.10 X55 National Standards of People's Republic of China Replacing GB/T 18798.3-2002 Solid instant tea Part 3. Moisture [ISO 7513.1990, Instantteainsolidform- Determinationofmoisturecontent (lossinmassat103degreesC), MOD] Posted 2008-08-12 2009-03-01 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" is divided into the following sections. --- Part 1. Sampling; --- Part 2. Determination of total ash; --- Part 3. Determination of moisture content; This section GB/T 18798 Part 3, ISO 7513 corresponds to.1990 "Moisture solid instant tea." The partial modification of the use of ISO 7513.1990. This part of ISO 7513 in the main technical content. the same as 1990, in the preparation of rules GB/T 1.1-2000 "Standardization according to Working Guidelines Part 1. Standard structure and drafting of rules "were developed. This section important technical indicators and ISO 7513.1990 same, but in the specific preparation of the content, format and ISO 7513.1990 in the presence of Column Differences. --- Delete ISO 7513.1990 Chapter 3, "principle" of the two "Note"; --- Delete ISO 7513.1990 Chapter 5, "sampling" in the "note", the note of the contents included in the sample; --- Increase the "definition" of Chapter 3; --- Combined ISO 7513.1990 Chapter 7 "sample weighing 7.2" and "following the determination" for the measuring step, and delete "7.4 Determination frequency"; --- For ease of calculation, the ISO 7513.1990 Chapter 8, "formula" in the m1 and m1 2 plus Lvhe quality; --- Delete ISO 7513.1990 in 9.1 "repetitive" in the moisture limit of 3% to 4%, this index and China's production of solid-state speed Soluble tea sub-match; --- Delete ISO 7513.1990 in 9.2; --- Delete ISO 7513.1990 Chapter 10, "test report"; --- The ISO 7513.1990 Chapter 7, "Sample Preparation" later chapters on the analysis of the operation, unified included in Chapter 6, "Operation Party Law "within. This Part replaces GB/T 18798.3-2002 "Moisture solid instant tea." This part is proposed by the China Federation of Supply and Marketing Cooperatives. This part of the National Standardization Technical Committee under the jurisdiction of tea. This section was drafted by. China Federation of Supply and Marketing Cooperatives Hangzhou Tea Research Institute. The main drafters of this section. Zhou Weilong, Xu Jianfeng, Xu Ling, Sha Tao, Huang Hao, painted Yunfei. This part of the standard replaces the previous editions are. --- GB/T 18798.3-2002. Solid instant tea Part 3. Moisture

1 Scope

This section GB/T 18798 specifies the principles of moisture determination in solid instant tea, apparatus and appliances, and the result of the calculation method of operation method. This section applies to the determination of moisture solid instant tea.

2 Normative references

The following documents contain provisions which, through reference GB/T 18798 in this section constitute provisions of this section. For dated reference documents Member, all subsequent amendments (not including errata content) or revisions do not apply to this section, however, encouraged to reach under this section Parties to research agreement to use the latest versions of these documents. For undated reference documents, the latest versions apply to this section. GB/T 18798.1 solid instant tea - Part 1. Sampling (GB/T 18798.1-2008, ISO 7516. 1984, IDT)

3 Terms and Definitions

The following terms and definitions apply GB/T 18798 in this section. 3.1 Sample at a temperature of 103 ℃, the mass loss was heated for 2h. Principle 4 The sample is heated to remove moisture 2h at 103 ℃ ± 2 ℃ constant temperature oven, weighed.

5 apparatus and appliances

Conventional laboratory equipment and the following. 5.1 blast oven temperature. it can automatically control the temperature of 103 ℃ ± 2 ℃. 5.2 aluminum baking pan. with cover, diameter 75mm ~ 80mm. 5.3 dryer. containing more effective desiccant. 5.4 Analysis of balance. a sense of the amount of 0.001g.

6 Operation

6.1 Sampling According to GB/T 18798.1 provisions sampling. Timely determination after sampling. 6.2 Sample Preparation The sealed container containing a solid instant tea samples shaking, reverse, sample is completely mixed. 6.3 aluminum baking dish ready Cover baking dish along with the dish (5.2) placed in the oven 103 ℃ ± 2 ℃ of (5.1) and heated 1h, stamped out, the dryer (5.3) in Cooling to room temperature, weigh (accurate to 0.001g).

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