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GB/T 8967-2007 English PDF

GB/T 8967-2007 (GB/T8967-2007, GBT 8967-2007, GBT8967-2007)
Standard IDContents [version]USDSTEP2[PDF] delivered inStandard Title (Description)StatusPDF
GB/T 8967-2007English130 Add to Cart 0--9 seconds. Auto-delivery Monosodium L-glutamate Valid GB/T 8967-2007
GB/T 8967-2000English639 Add to Cart 5 days [Need to translate] Monosodium L-glutamate (99% Wei jing) Obsolete GB/T 8967-2000
GB/T 8967-1988EnglishRFQ ASK 3 days [Need to translate] Monosodium L-glutamate Obsolete GB/T 8967-1988
Preview PDF: GB/T 8967-2007

BASIC DATA
Standard ID GB/T 8967-2007 (GB/T8967-2007)
Description (Translated English) Monosodium L-glutamate
Sector / Industry National Standard (Recommended)
Classification of Chinese Standard X66
Classification of International Standard 67.220.10
Word Count Estimation 19,188
Date of Issue 2007-02-02
Date of Implementation 2007-12-01
Older Standard (superseded by this standard) GB/T 8967-2000; QB/T 1500-1992
Quoted Standard GB/T 191; GB/T 601; GB/T 602-2002; GB 2720; GB/T 5009.43; GB/T 6682-1992; GB 7718; JJF 1070; QB/T 3798; QB/T 3799; National Quality supervision, Inspection and Quarantine Order [ 2005 ] No. 75 prepackaged goods metrological supervision and management measures
Drafting Organization China Research Institute of Food and Fermentation Industries
Administrative Organization National Standardization Technical Committee on Food Industry Industrial Fermentation Technical Committee
Regulation (derived from) National Standard Approval Announcement 2007 No.3 (Total No.103)
Proposing organization National Food Industry Standardization Technical Committee Technical Committee industrial fermentation
Issuing agency(ies) Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China; Standardization Administration of China
Summary This standard specifies the monosodium glutamate (MSG) terminology and definitions, Products, requirements, analytical methods, inspection rules and signs, packaging, transport and storage. This standard applies to monosodium glutamate (MSG).


GB/T 8967-2007 GB ICS 67.220.10 X 66 National Standard of the People’s Republic of China Replacing GB/T 8967-2000 Monosodium L-glutamate 谷氨酸钠(味精) ISSUED ON. FEBRUARY 2, 2007 IMPLEMENTED ON. DECEMBER 1, 2007 Issued by. General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China; Standardization Administration Committee. Table of Contents Foreword ... 3  1 Scope ... 4  2 Normative references ... 4  3 Chemical name, molecular formula, structural formula, and relative molecular mass ... 5  4 Terms and definitions ... 5  5 Classification ... 6  6 Requirements ... 6  7 Analysis methods ... 8  8 Test rules ... 21  9 Marking, packaging, transportation, and storage ... 23  Annex A ... 24  Annex B ... 30  Foreword This Standard is not equivalent to “Monosodium L-glutamate” standard in the 7th edition of Japanese “Specifications and Standards for Food Additives”. This Standard incorporates relevant contents in QB 1500-1992 “MSG”, and it is a revision to GB/T 8967-2000 “Monosodium L-glutamate (99% MSG)”. This Standard replaces GB/T 8967-2000, from the date of execution; QB 1500-1992 shall be invalidated accordingly. Compared with GB/T 8967-2000, the main changes of this Standard are as follows. — CHANGE the name to Monosodium L-glutamate (MSG); — DEFINE the monosodium L-glutamate (MSG), salted MSG, and special delicious MSG; — CLASSIFY the monosodium L-glutamate (MSG); — The hygienic requirements shall execute the relevant hygienic standards; therefore, this Standard has no requirement; — Methods for analysis of chloride. ADD the potassium chromate indicator method (applicable to chromate added with edible salt); — Visible turbidimetric methods for sulfate. there is difference at detail-level for MSG, special delicious MSG, and salted MSG; — ADD the determination of three flavor enhancers in special delicious MSG. Annex A of this Standard is normative, and Annex B is informative. This Standard shall be under the jurisdiction of the Subcommittee of Industrial Fermentation of National Technical Committee on Food Industry of Standardization Administration of China. Drafting organizations of this Standard. China National Research Institute of Food & Fermentation Industries, BBCA Biochemical Co., Ltd., Hangzhou West Lake MSG Group Co., Ltd., Zhejiang Mifeng Group Co., Ltd., Shenyang Hongmei Enterprise Group Co., Ltd., and Hebei Meihua Holding Group Co., Ltd. Main drafters of this Standard. Zhang Wei, Chang Zhuxia, Cheng Changping, Gong Xuming, Shi Zhongke, and Liu Senzhi. The previous versions replaced by this Standard are as follows. — GB 8967-1988, GB/T 8967-2000. Monosodium L-glutamate 1 Scope  This Standard specifies monosodium L-glutamate’s (MSG) terms and definitions, classification, requirements, analysis methods, test rules, marking, packaging, transportation, and storage. This Standard applies to monosodium L-glutamate (MSG). 2 Normative references  The provisions in following documents become the provisions of this Standard through reference in this Standard. For dated references, the subsequent amendments (excluding corrections) or revisions do not apply to this Standard, however, parties who reach an agreement based on this Standard are encouraged to study if the latest versions of these documents are applicable. For undated references, the latest edition of the referenced document applies. GB/T 191 Packaging - Pictorial marking for handling of goods (GB/T 191-2008, eqv ISO 780. 1997) GB/T 601 Chemical reagent - Preparations of standard volumetric solutions GB/T 602-2002 Chemical reagent - Preparations of standard solutions for impurity (ISO 6353-1. 1982, NEQ) GB 2720 Hygienic standard for weijing (gourmet powder) GB/T 5009.43 Method for analysis of hygienic standard of monosodium glutamate GB/T 6682-1992 Water for laboratory use; Specifications GB 7718 General standard for the labeling of prepackaged foods JJF 1070 Rules of Metrological Testing for Net Quantity of Products in Prepackages with Fixed Content QB/T 3798 Food additive - Disodium 5’-inosinate+disodium 5’-guanylate QB/T 3799 Food additive - Disodium guanylate Measurement supervision and management methods for fixed quantity packaged commodity (Order by General Administration of Quality Supervision, Inspection 7 Analysis methods  The water involved in this Standard, if not otherwise specified, refers to the water that complies with GB/T 6682-1992. The reagent involved in this Standard, if not otherwise specified for the specifications, refers to analytical reagents (AR). Special requirements shall be expressly provided otherwise. The solution involved in this Standard refers to aqueous solution if there is no indication of which solvent is used to prepare the solution. 7.1 Appearance WEIGH about 10g of samples. OBSERVE them with the naked eye. SMELL and taste them. And then make a judgment and keep a good record. 7.2 Identification test CONDUCT according to Annex B. 7.3 Content of monosodium L-glutamate 7.3.1 Perchloric acid non-aqueous titration 7.3.1.1 Principle With the existence of acetic acid, TITRATE the monosodium L-glutamate in the sample with standard perchloric acid solution; determine its end point by potentiometric titration or use α-naphtholbenzein as an indicator to titrate the solution to green as its end point. 7.3.1.2 Instruments 7.3.1.2.1 Automatic potentiometric titrator (accuracy. ±5mV). 7.3.1.2.2 Acidometer. 7.3.1.2.3 Magnetic stirring apparatus. 7.3.1.3 Reagents and solutions 7.3.1.3.1 Standard titration solution of perchloric acid [c(HClO4)=0.1mol/L]. prepared and standardized according to GB/T 601. 7.3.1.3.2 Acetic acid. 7.3.1.3.3 Formic acid. specific rotation of the sample is calculated according to formula (4). Where. X3 - the specific rotation of the sample, in °;  tD - the specific rotation of the sample solution at t°C, in °; t - the temperature of the measured sample solution, in °C; 0.047 - temperature correction factor. The computing result shall be rounded off to the first decimal. 7.5.6 Tolerance The difference in absolute value between the two test results of the same sample shall not exceed 0.02%. 7.6 Chloride 7.6.1 Turbidimetry (applicable to traces of chloride) 7.6.1.1 Principle Traces of chloride ions in the sample solution react with silver nitrate to produce precipitated silver chloride, whose turbidity is compared with the silver chloride produced from standard chloride ions. Visible turbidimetric method is conducted. 7.6.1.2 Reagents and solutions 7.6.1.2.1 Nitric acid 7.6.1.2.2 Chloride standard solution (1mL of solution contains 0.1mg of chloride) Prepared according to GB/T 602. 7.6.1.2.3 10% (volume fraction) salpeter solution MEASURE 1-volume nitric acid (7.6.1.2.1) and put it into 9-volume water. 7.6.1.2.4 Silver nitrate standard solution [c(AgNO3)=0.1mol/L] Prepared and standardized according to GB/T 601. 7.6.1.3 Analysis procedures Phosphate standard buffer solution (pH 6.86). WEIGH 3.40g of monopotassium phosphate (KH2PO4) and 3.55g of disodium hydrogen phosphate (Na2HPO4) that has been pre-dried for 2h at 120°C. DISSOLVE them in water solution without carbon dioxide; dilute to 1000mL; shake them well. 7.7.4 Analysis procedures USE phosphate standard buffer solution. CALIBRATE pH meter to set the pH as 6.87 at 25°C. FIX the position. WASH the electrode with water. WEIGH 5g of samples, accurate to 0.1g. DISSOLVE them in water solution without carbon dioxide and dilute to 50mL. SHAKE the mixture well, which will serve as sample solution. WASH the electrode with the sample solution before inserting it into the sample solution. ADJUST the pH meter’s temperature compensation knob to 25°C; measure the pH of the sample solution. REPEAT the operation until pH reading remains steady for 1min. Finally record the results. The measured result shall be accurate to the first decimal. 7.7.5 Tolerance The difference in absolute value between the two tests of the same sample shall not exceed 0.05pH. 7.8 Loss on drying 7.8.1 Principle DETERMINE the mass of the lost volatile substance by drying method, expressed in percentage. 7.8.2 The first method - Conventional method 7.8.2.1 Instruments 7.8.2.1.1 Electrically heated drying oven. temperature control of 98°C±1°C. 7.8.2.1.2 Weighing bottle. 50mm×30mm. 7.8.2.1.3 Desiccator. allochroic silica gel. 7.8.2.1.4 Analytical balance. sensibility of 0.1mg. 7.8.2.2 Analysis procedures WEIGH 5g of samples with a weighing bottle that has been dried to a constant weight, accurate to 0.0001g. PUT the bottle in the electrically heated drying oven at 98°C±1°C f... ......