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GB 13736-2008: Food additive -- Potassium sorbate
Status: Obsolete GB 13736: Evolution and historical versions
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Food additive -- Potassium sorbate
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PDF similar to GB 13736-2008
Basic data | Standard ID | GB 13736-2008 (GB13736-2008) | | Description (Translated English) | Food additive -- Potassium sorbate | | Sector / Industry | National Standard | | Classification of Chinese Standard | X42 | | Classification of International Standard | 67.220.20 | | Word Count Estimation | 10,197 | | Date of Issue | 2008-06-25 | | Date of Implementation | 2009-01-01 | | Older Standard (superseded by this standard) | GB 13736-1992 | | Quoted Standard | GB/T 191-2008; GB/T 601-2002; GB/T 602-2002; GB/T 603-2002; GB/T 605-2002; GB/T 5009.12-2003; GB/T 5009.74-2003; GB/T 5009.75-2003; GB/T 5009.76-2003; GB/T 6678-2003; GB/T 6679; GB/T 6682-2008; HG/T 3474-2000 | | Adopted Standard | Japanese food additives officially the seventh edition-1999, NEQ | | Regulation (derived from) | Announcement of Newly Approved National Standards No. 12 of 2008 (No. 125 overall) | | 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 Chinese standard specifies the requirements for food additives potassium sorbate, test methods, inspection rules, packaging, labeling, storage and transportation. This standard applies to sorbic acid and potassium carbonate (or potassium hydroxide) with water as the solvent reaction of potassium sorbate food additives production, inspection and sales. The product is used in food processing food preservative. | GB 13736-2008: Food additive -- Potassium sorbate---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.
Food additive.Potassium sorbate
ICS 67.220.20
X42
National Standards of People's Republic of China
Replacing GB 13736-1992
Food additives potassium sorbate
Posted 2008-06-25
2009-01-01 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China released
Foreword
Sections 4 and 7.1 of this standard are mandatory, the rest are recommended.
This standard and the "Japanese food additives officially" Seventh Edition (1999) "potassium sorbate" (Japanese version) the degree of consistency is not equivalent.
This standard replaces GB 13736-1992 "Food additive potassium sorbate."
This standard compared with GB 13736-1992 main changes are as follows.
--- By the appearance of white or light yellow crystalline powder (flakes or granules) is amended as white or white powder or granules (1992 edition
3.1, this version 4.1);
--- Potassium sorbate (to C6H7KO2 dollars) (dry basis) of the mass fraction of 98% to 102% by the modification of 98% -101% (1992
Version 3.2, this version 4.2);
--- The addition of lead content item (see 4.2);
--- Identification test sample solution increased UV spectrophotometric measurement (see 5.4.4.3);
--- Potassium sorbate content endpoint determination method of "change from purple to blue end" to "change from purple to blue-green end" (see
5.5.3.1);
--- Canceled potassium sorbate second determination method. two-phase titration (1992 version 4.2.2);
--- Clarity test method for measuring the standard colorimetric solution was diluted to improve the clarity of the requirements (1992 version 4.3,
Edition 5.6);
--- Revised test methods aldehyde content (1992 version 4.8, this version 5.11);
--- All items are increasing the types of test items, wherein the mass fraction of potassium sorbate, Clarity test, test the free base, dried Save
The amount of mass fraction, mass fraction of chlorides, sulfates (of SO4) mass fraction of formaldehyde (HCHO in dollars) of quality
Fraction of the provisions of the factory inspection items (see 6.2);
--- Shelf life from one year to modify the 18 months (1992 version 6.4, this version 7.5).
The standard proposed by China Petroleum and Chemical Industry Association.
This standard by the National Standardization Technical Committee branch of organic chemistry (SAC/TC63/SC2) and the National Food Additives Standardization
Committee (SAC/TC11) centralized.
This standard was drafted. Nantong Acetic Acid Chemical Co., Ltd., Chang Chemical Co., Ltd. Yancheng US.
Participated in the drafting of this standard. Shandong Rip Biochemical Co., Ltd., Ningbo Long Wang Group Co., Ltd. Linyi Pioneer.
The main drafters of this standard. Caojin Fang, Liu Fang, Guo Qiang.
This standard was first released in November 1992.
Food additives potassium sorbate
1 Scope
This standard specifies the requirements for food additives potassium sorbate, test methods, inspection rules, packaging, labeling, storage and transportation.
This standard applies to sorbic acid and potassium carbonate (or potassium hydroxide) water as a solvent in the reaction of the raw food additives potassium sorbate
Production, testing and marketing. The product is used as a food preservative in food processing.
2 Normative references
The following documents contain provisions which, through reference in this standard and become the standard terms. For dated references, subsequent
Amendments (not including errata content) or revisions do not apply to this standard, however, encourage the parties to the agreement are based on research
Whether the latest versions of these documents. For undated reference documents, the latest versions apply to this standard.
GB/T 191-2008 Packaging - Pictorial signs (ISO 780.1997, MOD)
Preparation of GB/T 601-2002 Chemical Reagent standard titration solution
GB/T 602-2002 Chemical Reagent preparation impurity standard solution measurement (ISO 6353-1. 1982, NEQ)
GB/T 603-2002 Chemical Reagent Test Methods Preparations with (ISO 6353-1. 1982, NEQ)
GB/T 605-2006 Chemical Reagent Chroma General method
Determination of GB/T 5009.12-2003 lead in food
GB/T 5009.74-2003 limit test of heavy metals in food additives
Determination of GB/T 5009.75-2003 food additives lead
Determination of GB/T 5009.76-2003 arsenic in food additives
GB/T 6678-2003 General Principles for Sampling Chemical Products
GB/T 6679 General rules for sampling solid chemical products
GB/T 6682-2008 analytical laboratory use specifications and test methods (ISO 3696. 1987, MOD)
HG/T 3474-2000 Chemical reagent ferric chloride
3 chemical name, molecular formula, molecular mass and structural formula
Chemical Name. trans, trans-2,4-hexadiene potassium
Molecular formula. C6H7KO2
Structural formula. CH3CH = CHCH = CHCOOK
Molecular weight. 150.22 (according to 2007 international relative atomic mass)
4 Requirements
4.1 Appearance. white or almost white powder or granules.
4.2 Food additives potassium sorbate should comply with the technical requirements in Table 1 below.
Table 1 Technical Requirements
Item Index
Potassium sorbate (to C6H7KO2 dollars) (dry basis),/98.0 to 101.0%
Clarity test by testing
Table 1 (continued)
Item Index
The free base by test test
Loss on drying, /% ≤ 1.0
Chloride (Cl dollars), /% ≤ 0.018
Sulfate (SO4 dollars), /% ≤ 0.038
Formaldehyde (HCHO in dollars), /% ≤ 0.1
Heavy metals (Pb)/(mg/kg) ≤ 10
Arsenic (As)/(mg/kg) ≤ 3
Lead (Pb)/(mg/kg) ≤ 2
5 Test methods
5.1 Warning
Some test procedures prescribed test method can lead to dangerous situations. The operator shall take appropriate safety and health practices.
5.2 General Provisions
Unless otherwise indicated in the analysis using only recognized as analytical reagents and GB/T 6682-1992 specified in the third grade water.
The test method used in the standard titration solution, impurities measured by standard solution, preparations and products, not specified in other requirements, according
GB/T 601-2002, regulations preparation GB/T 602-2002 and GB/T 603-2002 in.
5.3 Determination of appearance
Visual method.
5.4 Identification Test
5.4.1 Principle
5.4.1.1 hydrogen tartrate potassium sorbate, sodium reacts with ethanol insoluble white precipitate potassium tartrate.
5.4.1.2 potassium sorbate and bromine addition reaction of bromine leaving brown disappear.
5.4.1.3 potassium sorbate unsaturated group characteristic absorption in the UV area.
5.4.2 Reagents
5.4.2.1 ethanol;
5.4.2.2 hydrochloric acid solution. (1 + 3);
5.4.2.3 sodium hydrogen tartrate saturated solution;
5.4.2.4 bromine saturated solution;
5.4.2.5 hydrochloric acid solution. (9 + 1000).
5.4.3 Instruments
UV spectrophotometer.
5.4.4 Identification of steps
5.4.4.1 Weigh 1g laboratory samples, accurate to 0.01g, was dissolved in 100mL water, adding 5mL saturated solution of the sample in 5mL
And sodium hydrogen tartrate solution and 5mL of anhydrous ethanol, shake, transparent white precipitate formation.
5.4.4.2 Weigh 1g laboratory samples, accurate to 0.01g, was dissolved in 100mL of water in 10mL of the sample solution, add acetone
1mL, solution of hydrochloric acid solution (5.4.2.2) to make into a weak acid, the extra time 2 drops of bromine solution was shaken, the bromine color should disappear.
5.4.4.3 Weigh 50mg laboratory samples, accurate to 0.1mg, soluble in water, dilute to 250.0mL, draw the solution 2.0mL,
Diluted hydrochloric acid solution (5.4.2.5) to 200.0mL, in 230nm ~ 350nm spectrophotometrically measured, the solution should be 264nm ±
2nm maximum absorption than the absorbance at the maximum absorption should be 1650 to 1900.
5.5 Determination of potassium sorbate (to C6H7KO2) content of
5.5.1 Method summary
Dried sample with glacial acetic acid as the solvent, acetic anhydride as a co-solvent, with crystal violet as indicator, titration with perchloric acid standard solution titration, according to
Consumption of perchloric acid standard titrant volume calculation potassium sorbate content.
5.5.2 Reagents
5.5.2.1 glacial acetic acid;
5.5.2.2 acetic anhydride;
5.5.2.3 perchloric acid standard titration solution. Ba (HClO4) = 0.1mol/L;
5.5.2.4 crystal violet indicator solution. 5g/L.
5.5.3 Analysis of step
5.5.3.1 The dried product weighed about A 0.2g5.8, accurate to 0.0002g, it has been placed into 48mL 2mL glacial acetic acid and acetic anhydride
250mL iodine bottle, warmed to make a solution. Cooled to room temperature, add 2 drops of crystal violet indicator solution, titration with perchloric acid standard solution titration to dissolve
Solution from purple to blue-green endpoint.
5.5.3.2 measured at the same time, according to the same procedure and the determination of the sample without using the same amount of reagent blank test solution.
5.5.4 Calculation Results
Potassium sorbate (dry basis) of the mass fraction of 1% to the value expressed by the formula (1).
1 =
[(1- Vp Vp 2)/1000] Ba M
(1)
Where.
Vp 1 --- sample consumption of perchloric acid titration standard solution (5.5.2.3) the value of the volume, in milliliters (mL);
Vp 2 --- blank test titration consumption of perchloric acid standard solution (5.5.2.3) the value of the volume, in milliliters (mL);
Ba --- perchloric acid standard titration solution concentration accurate value of units of moles per liter (mol/L);
--- The M values of the molar mass of potassium sorbate in grams per mole (g/mol) (M = 150.2).
Calculation result to one decimal place.
Take two parallel determination results of the arithmetic average of the measurement results, the results of two parallel determination of the absolute difference is not more than 0.2%.
5.6 Clarity test
5.6.1 Reagents
5.6.1.1 hydrochloric acid solution. 24 → 1000;
5.6.1.2 cobalt chloride (CoCl2 · 6H2O). mass fraction of cobalt chloride according to GB/T 605-2006 measured;
5.6.1.3 ferric chloride (FeCl3 · 6H2O). mass fraction of iron chloride according to HG/T 3474-2000 were determined;
5.6.1.4 cobalt chloride standard stock solution. Weigh the measured mass fraction of cobalt chloride, dissolved and diluted hydrochloric acid solution, so as to. 1mL solution
Containing 59.5mg cobalt chloride;
5.6.1.5 ferric chloride standard stock solution. Weigh the measured mass fraction of iron chloride, dissolved and diluted hydrochloric acid solution, so as to. 1mL solution
45mg containing ferric chloride;
5.6.1.6 standard colorimetric stock solution. Take a standard cobalt chloride and ferric chloride stock solution 6mL standard stock solution 24mL in 100mL flask, salt
Acid solution was diluted to 100mL;
5.6.1.7 standard colorimetric solution. Take 12.5mL standard colorimetric liquid in 100mL volumetric flask, dilute to 100mL with hydrochloric acid solution,
well mixed.
5.6.2 Analysis of step
Weigh 0.2g laboratory samples, accurate to 0.01g, placed in 10mL colorimetric tube, add 5.0mL dissolved in water as the test solution;
Take (5 ± 0.02) mL standard colorimetric solution was placed in another 10mL colorimetric tube, in the absence of direct sunlight, axial and lateral observation test
Color test solution must not be darker than the standard color solution color.
5.7 test free base
5.7.1 Method summary
Phenolphthalein as an indicator, sulfuric acid standard titration solution with a predetermined amount of neutralization.
5.7.2 Reagents
5.7.2.1 sulfuric acid standard titration solution. Ba (1/2H2SO4) = 0.100mol/L;
5.7.2.2 phenolphthalein indicator solution. 10g/L.
5.7.3 Analysis of step
Weigh 1.0g laboratory samples, accurate to 0.01g, no carbon dioxide dissolved in about 20mL of water, add 2 drops of phenolphthalein indicator solution was red
Color, along with sulfuric acid standard titration solution 0.40mL, shake, red should disappear.
5.8 Determination of loss on drying
5.8.1 Method summary
Discharge amount measurement sample at a constant temperature of the volatile substance.
5.8.2 Analysis of step
Weigh 2g ~ 3g laboratory samples, accurate to 0.0002g, placed in advance (105 ± 2) ℃ dried to constant mass weighing bottle,
Paved 5mm or less layers. In the oven temperature (105 ± 2) ℃ dried 3h, placed in a desiccator to cool 30min weighing. Retention
A drying was used to determine the content of potassium sorbate.
5.8.3 Calculation Results
Loss on drying mass fraction of 2% to the value expressed by the formula (2).
(2)
Where.
Take two parallel determination results of the arithmetic average of the measurement results, the results of two parallel determination of the absolute difference is not more than 0.1%.
5.9.1 Method summary
Chloride and silver nitrate generated silver chloride in an acidic (nitric acid) solution of white precipitate. The samples were dissolved in water under acidic conditions by adding nitrate
Acid silver a white turbid, and the turbidity standard solution are compared, do a limited test.
5.9.2 Reagents
5.9.2.1 nitric acid solution. 10 + 1;
5.9.2.2 silver nitrate solution. 17g/L;
5.9.2.3 chloride (Cl) standard solution. 0.18mg/mL.
5.9.3 Analysis of step
Weigh 1g laboratory samples, accurate to 0.01g, add water about 30mL dissolved, stirring plus nitric acid solution 11mL, filtered, washed with water,
The combined washings and filtrate was placed in 100mL colorimetric tube, add water to 50mL of the test solution. Another one colorimetric tube was added (1 ± 0.02) mL
Chloride (Cl) standard solution, add 30mL water, add 6mL solution of nitric acid and water to 50mL with standard turbidity solution. Respectively, compared to two
Color tube was added 1mL silver nitrate solution, mix well, avoid direct sunlight, place 5min, on a black background side or axial conducted Concept
Police, turbidity test solution is not greater than the standard nephelometric turbidity of the solution.
5.10 Determination of Sulfate (SO4) content of
5.10.1 Principle
Sulfate and barium chloride in acid (HCl) solution, generating a white precipitate of barium sulfate, turbidity compared with the standard solution, do limit
test.
5.10.2 Reagent
5.10.2.1 hydrochloric acid solution. 1 + 4;
5.10.2.2 barium chloride solution. 50g/L;
5.10.2.3 sulphate (SO4) standard solution. 0.19mg/mL.
5.10.3 analysis step
Laboratory samples Weigh 0.5g, accurate to 0.01g, add about 30mL dissolved, stirring 3mL hydrochloric acid solution, filtered, water
Wash the combined washings and filtrate to 100mL colorimetric tube, add water to 50mL, as the test solution.
Take 1.0mL sulphate (SO4) standard solution in 100mL another branch colorimetric tube, add 1mL hydrochloric acid solution, add water to 50mL,
As a standard turbidity solution.
At the same time the test solution and standard turbidity solution of each 5mL plus barium chloride solution, placed 10min after observation, the turbidity of the test solution does not
Larger than turbidimetric turbidity standard solution.
Determination of aldehyde content of 5.11
5.11.1 Principle
Formaldehyde and magenta sulfite from the addition reaction, as a result of the rearrangement, recovery purple substance quinoid structure, and standard colorimetric solution into
Comparing, do a limited test.
5.11.2 Reagent
5.11.2.1 isopropanol;
5.11.2.2 hydrochloric acid solution. (9 + 100);
5.11.2.3 formaldehyde standard solution. 0.1mg/mL;
5.11.2.4 magenta - sulfite solution. 0.2g of fuchsin dissolved in 120mL water was added 20mL freshly prepared
100g/L of sodium sulfite (NaSO3 · 7H2O) solution of hydrochloric acid and 2mL, moved flask, bottle plugged with cotton wool and placed in the dark compartment
Later charged in a brown bottle.
5.11.3 measuring step
Laboratory samples Weigh 1g, accurate to 0.01g, was dissolved in 50mL of isopropyl alcohol and 30mL water, adjusted to pH 4 with hydrochloric acid
(Precision strip test), transferred to a 100mL volumetric flask, dilute to the mark. Take the above solution 10mL set 50mL colorimetric tube
In, take 1.0mL standard solution of formaldehyde, 4mL isopropanol and 5mL water into another 50mL colorimetric tube. Then two colorimetric tubes respectively
Is added 1mL magenta - sulfite solution, shake, place 30min after visual colorimetric test solution was red can not be deeper than the standard
Colorimetric solution.
5.12 Heavy metal (P Chou meter) Determination of
According to GB/T 5009.74-2003 measured. Press the "dry digestion" Treatment of samples. 20.0mL measured amount of sample liquid (phase
When in 2.0g laboratory samples), measure 2.0mL of lead standard solution (equivalent 20.0μgPb) Preparation of lead limit standards.
5.13 Determination of Arsenic (A Ju) content of
According to GB/T 5009.76-2003 Gutzeit method. Press the "wet digestion" Treatment of samples. Amount of the liquid sample measured 10.0mL
(Equivalent to 1.0g laboratory sample), taking the amount of 3.0mL arsenic standard solution (equivalent 3μgAs) comparison.
Determination of Lead 5.14 (P Chou) Content
5.14.1 colorimetry (Arbitration Act)
According to GB/T 5009.75-2003 measured. Press the "dry digestion" Treatment of samples. Before use, the lead standard 1mg/mL of solution
Lead standard solution was diluted to 5μg/mL of. Measured lessons (25 ± 0.02) in the sample solution mL (equivalent to 2.5g laboratory sample) and
(1 ± 0.02) mL of lead standard solution (equivalent 5μgPb), were placed in 125mL separating funnel, lead standard solution of nitric acid plus 1%
To 25mL.
5.14.2 Atomic Absorption Spectrometry
According to GB/T 5009.12-2003 measured. Sample processing according to GB/T 5009.75-2003 performed. Press the "dry digestion" Law Service
Li samples. Graphite furnace atomic absorption spectrometry, visual sample liquid sample case proper dilution.
6 Inspection rules
6.1 product, the company should ensure that products meet the requirements of this standard. This product quality supervision by production companies
Sector according to the standards for testing, after passing the factory, along with product certification.
6.2 product testing
Product testing and factory inspection sub-type test.
6.2.1 factory inspection
Table 1 potassium sorbate mass fraction, mass Clarity test, test the free base, the mass fraction of loss on drying, chloride points
The number of sulfate (of SO4) mass fraction of formaldehyde (HCHO in dollars) mass fraction factory inspection items. Batch should be tested.
6.2.2 Type inspection
Type test items in Chapter 4 of this standard all items, when one of the following conditions, type of inspection should be carried out.
a) identification of new products into production time;
b) raw materials, technology, equipment major changes that may affect product performance;
c) shut down more than three months to resume production;
d) normal production at least once every two months;
e) factory inspection results are quite different and the last type inspection;
f) contract.
6.3 Sampling Method
Determine the sampling units according to GB/T 6678-2003 the provisions in 7.6.1, sampling requirements according to GB T 6679 /. Will take to
The sample is thoroughly mixed with about 200g quartering and dividing into a clean, dry, airtight and dark of the vial (or sample bag) has,
Bottles (bags) marked on the label. manufacturer name, product name, batch number, date of sampling. Bottle (bag) by the inspection department inspection, bottle
(Bags) sealed and stored for 18 months for future reference.
6.4 determine the rules
If there is an indicator of the test results do not meet the requirements of this standard should be re-extracted twice the amount of sample from a sample batch of samples, multiplexing
Inspection, re-inspection results are still one does not meet this standard, then this batch of product failure.
7 signs, packaging, storage and transport
7.1 marks
7.1.1 on food additives potassium sorbate should be clearly marked containers securely, including. product name, manufacturer name and address,
Trademark, "food additive" words, this standard code, health permits, production license number and logo, batch number or production date,
Net content and press GB/T 191-2008 stipulated "afraid of the rain" signs.
7.1.2 each batch of food additives potassium sorbate should be accompanied by a certificate of quality, including. product name, manufacturer name and address,
Trademark, "food additive" character, health permits, production license number, batch number or production date, net content, shelf life, product
Demonstrate compliance with this standard and the quality of the standard number.
7.2 Packaging
Food additives potassium sorbate using materials meet food hygiene requirements for packaging, net weight and carton (barrels) Net content can root
According to user requirements specifications for packaging.
7.3 Transport
Food additives potassium sorbate in transport should be covered to prevent the sun and rain, vehicles should be kept clean to prevent damage during transportation
Packaging must not be toxic, harmful, odorous and other possible contaminated substances mixed, mixed operation.
7.4 Storage
Food additives potassium sorbate should be stored in a cool, dry, ventilated warehouse, to prevent direct sunlight, away from heat, not with toxic,
Damage, odor and other possible contaminated substances exist.
7.5 Shelf Life
In line with the standard packaging, transport and storage conditions, from the date of production, food additives potassium sorbate shelf life of 18 months.
After unpacking the package, or should be sealed as soon as possible.
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