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GB/T 12729.8-2008: Spices and condiments -- Determination of water-insoluble ash
Status: Obsolete GB/T 12729.8: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 12729.8-2008 | English | 199 |
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Spices and condiments -- Determination of water-insoluble ash
| Obsolete |
GB/T 12729.8-2008
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| GB/T 12729.8-1991 | English | 199 |
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Spices and condiments--Determination of water-Insoluble ash
| Obsolete |
GB/T 12729.8-1991
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PDF similar to GB/T 12729.8-2008
Basic data | Standard ID | GB/T 12729.8-2008 (GB/T12729.8-2008) | | Description (Translated English) | Spices and condiments -- Determination of water-insoluble ash | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | B36 | | Classification of International Standard | 67.220.10 | | Word Count Estimation | 5,550 | | Date of Issue | 2008-07-16 | | Date of Implementation | 2008-11-01 | | Older Standard (superseded by this standard) | GB/T 12729.8-1991 | | Quoted Standard | GB/T 12729.3; GB/T 12729.7 | | Adopted Standard | ISO 929-1980, NEQ | | Regulation (derived from) | National Standard Approval Announcement 2008 No.12 (Total No.125) | | 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 spices and condiments water insoluble ash. This section applies to spices and condiments-Determination of ash insoluble in water. | GB/T 12729.8-2008: Spices and condiments -- Determination of water-insoluble ash---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.
Spices and condiments. Determination of water-insoluble ash
ICS 67.220.10
B36
National Standards of People's Republic of China
Replacing GB/T 12729.8-1991
Spices and condiments - Determination of water-insoluble ash
(ISO 929. 1980, NEQ)
Posted 2008-07-16
2008-11-01 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China released
Foreword
GB/T 12729 "Spices and condiments" consists of the following components.
--- GB/T 12729.1 Spices and condiments name
--- GB/T 12729.2 Spices and condiments - Sampling Methods
Preparation --- GB/T 12729.3 Spices and seasoning powder sample analysis
--- GB/T 12729.4 Spices and condiments - Determination of fineness of grinding (hand sieving method)
Determination --- GB/T 12729.5 spices and condiments extraneous matter content
--- GB/T 12729.6 Spices and condiments - Determination of moisture content (distillation)
--- GB/T 12729.7 Spices and condiments - Determination of total ash
--- GB/T 12729.8 Spices and condiments - Determination of water-insoluble ash
Determination --- GB/T 12729.9 Spices and condiments acid insoluble ash
--- Determination of GB/T 12729.10 Spices and condiments alcohol extract
--- GB/T 12729.11 Spices and condiments - Determination of cold water-soluble material extraction
Determination --- GB/T 12729.12 Spices and condiments non-volatile ether extract
Determination --- GB/T 12729.13 Spices and condiments dirt
This section GB/T 12729 Part 8.
This section corresponds to ISO 929. 1980 "Spices and condiments - Determination of water-insoluble ash" (in English), the degree of non-uniformity, etc.
Effect, the main differences are.
--- Increased testing accuracy requirements, the repetitive listed in 7.2, in order to improve the accuracy of measurement;
--- This part of the inspection report is not specified.
This part is GB/T 12729.8-1991 "Spices and condiments - Determination of water-insoluble ash" amendment. versus
GB/T 12729.8-1991 compared to no change in the specific technical content, made some changes in the format and text, will be divided into a Chapter 7
7.1, 7.2, the Chapter 8, "allows poor" technical content to the new "7.2 repeatability" in.
This Part replaces GB/T 12729.8-1991.
This part by the China Federation of Supply and Marketing Cooperatives and focal points.
This section was drafted by. China Federation of Supply and Marketing Cooperatives Nanjing Institute of comprehensive utilization of wild plants.
The main drafters of this section. Chen Shirong, Zhang Weiming.
This part of the standard replaces the previous editions are.
--- GB/T 12729.8-1991.
Spices and condiments - Determination of water-insoluble ash
1 Scope
This section GB/T 12729 specifies the method for determination of Spices and condiments water-insoluble ash.
This section applies to spices and condiments - Determination of water-insoluble ash.
2 Normative references
The following documents contain provisions which, through reference GB/T 12729 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 12729.3 spices and seasoning powder sample was prepared for analysis (GB/T 12729.3-2008, ISO 2825.
1981, MOD)
GB/T 12729.7 Spices and condiments - Determination of total ash (GB/T 12729.7-2008, ISO 928.1997, NEQ)
3 Terms and Definitions
The following terms and definitions apply to this part of the GB/T 12729 of.
3.1
Under the conditions specified in this part, the resulting residue was treated with hot water after total ash.
Principle 4
Total ash dissolved in hot water according to the method described 12729.7 GB/T obtained through quantitative filter paper, residue on ignition and weighed.
5 main instruments
5.1 Furnace temperature. 550 ℃ ± 25 ℃.
5.2 water bath.
5.3 Quantitative filter paper.
5.4 dryer.
5.5 Analytical balance.
Step 6 Analysis
6.1 Sample
6.1.1 If the determination of total ash ash obtained for the determination of water insoluble ash sample is used to determine a sample of total ash.
6.1.2 may also be another sample taken, according to GB/T 12729.3 requirements for preparation of total ash.
6.2 Determination
Add distilled water to a pre-prepared containing the total ash content of the crucible and heated to near boiling, filtered, washed with hot water until the filtrate and washings were combined
And a volume of about 60mL so far. The residue was transferred to filter paper and original crucible, evaporated on a water bath at 550 ℃ and burning in a high temperature electric furnace
1h. Cooling in a desiccator, weighed (accurate to 1mg). Repeat ashing, cooling and weighing operations until the difference is less than two consecutive weighing
1mg so far.
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