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GB/T 9855-2008: Chemical reagent -- Citric acid monohydrate
Status: Valid GB/T 9855: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 9855-2008 | English | 189 |
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Chemical reagent -- Citric acid monohydrate
| Valid |
GB/T 9855-2008
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| GB/T 9855-1988 | English | 199 |
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Chemical reagent--Citric acid monohydrate
| Obsolete |
GB/T 9855-1988
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PDF similar to GB/T 9855-2008
Basic data | Standard ID | GB/T 9855-2008 (GB/T9855-2008) | | Description (Translated English) | Chemical reagent -- Citric acid monohydrate | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | G63 | | Classification of International Standard | 71.040.30 | | Word Count Estimation | 8,848 | | Date of Issue | 2008-05-15 | | Date of Implementation | 2008-11-01 | | Older Standard (superseded by this standard) | GB/T 9855-1988 | | Adopted Standard | ISO 6353-2-1983, NEQ | | Regulation (derived from) | National Standard Approval Announcement 2008 No.8 (Total No.121) | | 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 chemical reagent citric acid monohydrate traits, specifications, trial, packaging and inspection rules and signs. This standard applies to chemical reagent citric acid monohydrate test. | GB/T 9855-2008: Chemical reagent -- Citric acid monohydrate---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.
Chemical reagent - Citric acid monohydrate
ICS 71.040.30
G63
National Standards of People's Republic of China
GB/T 9855-2008
Replace GB/T 9855-1988
Chemical reagent
Citric acid monohydrate (citric acid)
(ISO 6353-2.1983, Reagentsforchemicalanalysis-
Part 2.Specifcations-Firsties, NEQ)
2008-05-15 released
Implementation of.2008-11-01
General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China
Issued by China National Standardization Administration
Foreword
This standard is compatible with ISO 6353-2.1983 "Chemical Analysis Reagents-Part 2.Specifications 1st Series" R8 "Citric Acid Monohydrate"
The degree of consistency is non-equivalent.
This standard replaces GB/T 9855-1988 "Chemical Reagent Citric Acid". Compared with GB/T 9855-1988, the main changes are as follows.
---The standard name was changed to "Citric Acid Monohydrate (Citric Acid)";
---The specification of the clarity test was adjusted from "qualified" to "No. 2", "No. 4", "No. 6" (3.2 of the 1988 edition, Chapter 4 of this edition);
--- Water-insoluble matter, burning residue, chloride, sulfate, oxalate, iron are determined by general method of chemical reagents (1988 edition)
4.2.2, 4.2.3, 4.2.4, 4.2.5, 4.2.7, 4.2.9 of this edition, 5.5, 5.6, and 5.7, 5.8, 5.10, 5.12);
---Adjusted the sampling volume of sulfate (chemically pure) and phosphate (chemically pure) (4.2.5 and 4.2.6 in the 1988 edition, and 5.8 in this edition)
5.9).
This standard was proposed by the China Petroleum and Chemical Industry Association.
This standard is under the jurisdiction of the Chemical Reagent Branch of the National Chemical Standards Technical Committee (SAC/TC63/SC3).
Drafting organization of this standard. Shanghai Sanaisi Reagent Co., Ltd.
The main drafters of this standard. Xie Ji, Ke Dehong, Chen Jingjuan.
This standard was first published in 1960, and was revised for the first time in 1977, for the second time in 1981, and for the third time in 1988.
GB/T 9855-2008
Chemical reagent
Citric acid monohydrate (citric acid)
Molecular formula. C6H8O7·H2O
Relative molecular mass. 210.14 (according to the international relative atomic mass in.2005)
1 scope
This standard specifies the properties, specifications, tests, inspection rules, packaging and marking of citric acid monohydrate in chemical reagents.
This standard applies to the inspection of citric acid monohydrate in chemical reagents.
2 Normative references
The clauses in the following documents become clauses of this standard after being quoted. For dated reference documents, all subsequent
Amendments (not including errata content) or revisions do not apply to this standard. However, all parties that have reached an agreement based on this standard are encouraged to study
Is the latest version of these files available? For undated references, the latest version is applicable to this standard.
GB/T 601 Preparation of chemical reagent standard titration solution
Preparation of GB/T 602 Standard Solution for Impurity Determination of Chemical Reagents (GB/T 602-2002, ISO 6353-1.1982, NEQ)
Preparation of preparations and products used in GB/T 603 test methods for chemical reagents (GB/T 603-2002, ISO 6353-1.1982,
NEQ)
GB/T 6682 Analysis laboratory water specifications and test methods (GB/T 6682-2008, ISO 3696.1987, MOD)
GB/T 9723-2007 General Rules of Flame Atomic Absorption Spectrometry for Chemical Reagents
GB/T 9728 General Method for Determination of Sulfate in Chemical Reagents (GB/T 9728-2007, ISO 6353-1.198, NEQ)
GB/T 9729 General method for the determination of chloride in chemical reagents (GB/T 9729-2007, ISO 6353-1..1998, NEQ)
GB/T 9730 General method for determination of oxalate with chemical reagents (GB/T 9730-2007, ISO 6353-1..1998, NEQ)
GB/T 9737 General rules for the determination of easily carbonizable substances in chemical reagents (GB/T 9737-2008, ISO 6353-1.1982, NEQ)
GB/T 9738 General method for determination of water-insoluble matter in chemical reagents (GB/T 9738-2008, ISO 6353-1.1982, NEQ)
GB/T 9739 General method for determination of iron in chemical reagents (GB/T 9739-2006, ISO 6353-1.1982, NEQ)
GB/T 9741-2008 General method for determination of residue on ignition of chemical reagents (ISO 6353-1.1982, NEQ)
GB 15346 Chemical reagent packaging and marking
HG/T 3484 chemical reagent standard glass emulsion and clarity standard
HG/T 3921 Chemical reagent sampling and acceptance rules
3 traits
This reagent is colorless crystals or white particles, easy to dehydration in dry air, easy to absorb moisture in humid air, and easy to decompose at high temperature.
4 Specifications
See Table 1 for the specifications of citric acid monohydrate.
GB/T 9855-2008
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