GB 22489-2017 English PDF

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GB 22489-2017: Feed additive -- Manganese methionine complex (chelate)
Status: Valid

GB 22489: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB 22489-2017	199	Add to Cart	3 days	Feed additive -- Manganese methionine complex (chelate)	Valid
GB/T 22489-2008	239	Add to Cart	3 days	Feed additive -- Manganese methionine	Obsolete

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GB 22549   GB 22548   GB/T 23742   GB/T 22488   GB/T 22487   

Basic data

Standard ID: GB 22489-2017 (GB22489-2017)
Description (Translated English): Feed additive -- Manganese methionine complex (chelate)
Sector / Industry: National Standard
Classification of Chinese Standard: B46
Classification of International Standard: 65.120
Word Count Estimation: 10,159
Date of Issue: 2017-10-14
Date of Implementation: 2018-05-01
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

GB 22489-2017: Feed additive -- Manganese methionine complex (chelate)

---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.
Feed additive - Manganese methionine complex (chelate) ICS 65.120 B46 National Standards of People's Republic of China Replacing GB/T 22489-2008 Feed additive methionine manganese (chelate) complexes 2017-10-14 Published 2018-05-01 implementation General Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China China National Standardization Administration released

Foreword

The first chapter of this standard, Chapter 3 and Chapter 5 is mandatory, the rest are recommended. This standard was drafted in accordance with the rules given in GB/T 1.1-2009. This standard replaces GB/T 22489-2008 "feed additive methionine manganese." This standard compared with GB/T 22489-2008, the main technical differences are as follows. --- Adjust the molar ratio of 2. 1 manganese methionine (chelate) the technical indicators; --- Moisture from 5% to 3%; --- Lead from 10mg/kg modified to 5mg/kg; --- Modified methionine assay; --- 5.3 adjusted the factory inspection items. This standard is proposed and managed by the National Feed Industry Standardization Technical Committee (SAC/TC76). This standard was drafted unit. National Feed Quality Supervision and Inspection Center (Wuhan), Guangzhou Tianke Technology Co., Ltd., Guangzhou Kang Ruide biotechnology Co., Ltd., Chinese Academy of Agricultural Sciences Beijing Institute of Animal Husbandry and Veterinary. The main drafters of this standard. Yang Lin, Teng Bing, Liu Xianrong, He Xu Kong, Luo Xu Gang, Zhou Jianqun. This standard replaces the standards previously issued as. --- GB/T 22489-2008. Feed additive methionine manganese (chelate) complexes

1 Scope

This standard specifies the requirements of feed additive methionine manganese (chelate) compounds, test methods, inspection rules and labeling, packaging, transportation, Storage and shelf life. This standard applies to soluble manganese salt and methionine (2-amino-4-methylthio-butyric acid) synthesis molar ratio of 2. 1 or 1. 1 feed Materials additive manganese methionine (chelate) complexes. Methionine manganese complex (methionine) complex with methionine and manganese molar ratio of 2. 1, the molecular formula is C10H20N2O4S2Mn; relative molecular mass. 351.4 (By International Relative Atomic Weight,.2007). Methionine manganese molar ratio of 1. 1 methionine manganese complex (molecular formula C5H11NO6S2Mn; relative molecular mass .300.2 (by 2007 International relative atomic mass meter).

2 Normative references

The following documents for the application of this document is essential. For dated references, only the dated version applies to this article Pieces. For undated references, the latest edition (including all amendments) applies to this document. GB/T 601 chemical reagent standard titration solution preparation GB/T 5917.1 forage particle size determination two sieve screening method GB/T 6435 Determination of moisture in feed GB/T 6682 analytical laboratory water specifications and test methods GB 10648 feed label Determination of total arsenic in feedstuffs GB/T 13079-2006 Feedstuffs - Determination of lead - Atomic absorption spectrometry GB/T 13080-2004 GB/T 13080.2 feed additive methionine iron (copper, manganese, zinc) chelation rate gel filtration chromatography GB/T 13082 Determination of cadmium in feed GB/T 14699.1 feed sampling

3 requirements

3.1 Appearance and traits Methionine Manganese (chelate) (molar ratio of 2. 1) for the class of white powder, slightly soluble in water, with the unique smell of methionine, no caking, fat Mold, deterioration phenomenon. Methionine Manganese (chelate) (molar ratio of 1. 1) is white or almost white powder, soluble in water, a slight methionine odor, no knot Block, moldy, deterioration phenomenon. 3.2 Specifications Technical indicators should meet the requirements of Table 1. Table 1 methionine manganese (chelate) technical indicators project index The molar ratio of 2. 1 product is 1. 1 Manganese /% ≥14.5 ≥15.0 Methionine /% ≥79.5 ≥40.0 Network (chelation) rate /% ≥ 93.0 ≥ 83.0 Moisture /% ≤3 Particle size (0.20 mm sieve) /% ≤2 Total arsenic/(mg/kg) ≤5 Lead/(mg/kg) ≤5 Cadmium/(mg/kg) ≤5

4 test methods

Reagents and water used in this standard, did not indicate when the other requirements refer to analytical reagents and GB/T 6682 provisions of the three water. Warning --- part of the reagents used in the test method is toxic or corrosive, the operation should take appropriate safety and protective measures. 4.1 Sensory test Using visual and olfactory test. 4.2 Identification 4.2.1 Reagents and solutions 4.2.1.1 Methanol. 4.2.1.2 Trichloromethane. 4.2.1.3 pyridine naphthol (PAN) chloroform solution (0.1mg/mL). Weigh 0.01gPAN dissolved in 100mL trichloromethyl Alkane. 4.2.1.4 Potassium hydroxide methanol solution (0.01g/mL) Weigh 1g of potassium hydroxide dissolved in 100mL of methanol. 4.2.2 Identification method Weigh 1.0g sample, extracted with 25mL of methanol (4.2.1.1), filtered, the filtrate 1.0mL, was added pyridylazonaphthol (PAN) tris 1.0 mL of methyl chloride solution (4.2.1.3) and 0.5 mL of potassium hydroxide methanol solution (4.2.1.4) to give a purple solution. 4.3 moisture According to the method specified in GB/T 6435 Determination. 4.4 smashing size According to the method specified in GB/T 5917.1 Determination. 4.5 Determination of total arsenic Pre-treatment according to the provisions of 5.4.1.2 GB/T 13079-2006, determination according to GB/T 13079-2006 in Chapter 5 get on. 4.6 Determination of lead Pretreatment according to the provisions of 7.1.2.1 GB/T 13080-2004, determined according to GB/T 13080-2004 in 7.2, 7.3 regulations Set to. 4.7 Determination of cadmium According to the method specified in GB/T 13082 Determination. 4.8 Determination of manganese content 4.8.1 Principle In a phosphoric acid medium, the divalent manganese in the sample is quantitatively oxidized to trivalent manganese with ammonium nitrate at.200 ° C. to 220 ° C., N-benzyloxide Aminobenzoic acid as an indicator, ammonium ferrous sulfate standard titration solution titration. 4.8.2 Reagents and materials 4.8.2.1 Phosphoric acid. 4.8.2.2 Ammonium nitrate. 4.8.2.3 Anhydrous sodium carbonate. 4.8.2.4 N-phenyl-anthranilic acid indicator solution .2g/L. Weigh 0.2gN-phenyl-anthranilic acid, dissolved in a small amount of water, add 0.2g anhydrous sodium carbonate, low temperature heating to dissolve water to 100mL, shake. 4.8.2.5 Phosphorus Mixed Acid Add 150mL sulfuric acid and 150mL phosphoric acid to 700mL water, shake well and cool. 4.8.2.6 Potassium dichromate standard solution .c (1/6K2Cr2O7) is about 0.1mo1/L. Weigh at 120 ℃ bake to a constant mass basis weight Potassium Chromate about 4.9g (accurate to 0.0001g), placed in 1000mL volumetric flask, add the appropriate amount of water dissolved, diluted to the mark, shake. 4.8.2.7 Ferrous ammonium sulfate standard titration solution .c [Fe (NH4) 2 (SO4) 2] is about 0.1mol/L. Ferrous ammonium sulfate standard titration solution The calibration should be performed simultaneously with the sample determination. Weigh 40g ammonium ferrous sulfate, add (14) sulfuric acid solution 300mL, add 700mL of water after dissolving, shake. Weigh 25mL potassium dichromate standard solution, add 10mL phosphoric acid, add water to 100mL. Ferrous ammonium sulfate standard Titration to orange yellow disappeared. Add 2 drops of N-phenyl-anthranilic acid indicator solution, continue titration until the solution was bright green is the end. Ferrous ammonium sulfate standard titration solution concentration (c1) according to equation (1) calculation. c1 = V1m1 49.03V (1) In the formula. m1 --- Weigh the actual quality of potassium dichromate in grams (g); 49.03 --- Molar mass of potassium dichromate (1/6K2Cr2O7) in grams per mole (g/mol); V1 --- Remove the volume of potassium dichromate standard solution, in milliliters (mL); V --- titration consume ammonium ferrous sulfate standard titration solution volume, in milliliters (mL). 4.8.3 Analysis steps Weigh about 0.5g sample (accurate to 0.0001g), placed in 500mL Erlenmeyer flask, moistened with a small amount of water. Add 20 mL of phosphoric acid (4.8.2.1), shake well and heat until the solution is just sepia (at this time the temperature is.200 ℃ ~ 220 ℃), add 4g ammonium nitrate (4.8.2.2) And shake well until the yellow smoke exhausted, cooled to 70 ℃, add 100mL of water, shake, dissolve, cooled to room temperature. Ferrous ammonium sulfate standard Titration solution (4.8.2.7) titration to light red, add 2 drops of N-phenyl-anthranilic acid indicator solution (4.8.2.4), continue to titrate the solution from Red to bright yellow is the end. 4.8.4 Analysis of the results of the statement Manganese content in mass fraction X1, the value is expressed in%, according to equation (2) calculation. X1 = c1V2 × 0.05494 m2 × 100 (2) In the formula. c1 --- ferrous ammonium sulfate standard titration solution actual concentration in units of moles per liter (mol/L); V2 --- titration consume ammonium ferrous sulfate standard titration solution volume, in milliliters (mL); m2 --- the quality of the sample, in grams (g); 0.05494 --- equivalent to 1.00mL ammonium ferrous sulfate standard titration solution {c [Fe (NH4) 2 (SO4) 2] = 1.000mol/L} The mass of manganese in grams. Keep three significant figures, taking the arithmetic mean of parallel determination results as the determination result. 4.8.5 Repeatability Under the repeatability conditions, the absolute difference between two parallel determination results is not more than 0.5%. 4.9 Determination of methionine content 4.9.1 Principle Excess iodine solution is added accurately in neutral medium, two iodine atoms combine with sulfur atom on methionine, excess iodine solution is treated with thio Sodium sulfate standard solution back drop, so as to find out the content of methionine in the sample. 4.9.2 Reagents and solutions 4.9.2.1 Hydrochloric acid solution (1 1). 4.9.2.2 sodium hydroxide solution (20%). 4.9.2.3 Sulfuric acid (20%). 4.9.2.4 dipotassium hydrogen phosphate solution.200g/L. 4.9.2.5 potassium dihydrogen phosphate solution.200g/L. 4.9.2.6 Potassium iodide. 4.9.2.7 iodine solution .c (1/2I2) is about 0.1mol/L. Weigh 13g iodine and 35g potassium iodide dissolved in water, diluted to 1000mL, shake Uniform, stored in brown bottle. 4.9.2.8 sodium thiosulfate standard solution .c (Na2S2O3) is about 0.1mol/L, according to GB/T 601 preparation and calibration. 4.9.2.9 starch indicator solution .10g/L. 4.9.3 Analysis steps Weigh the sample about 1.5g (accurate to 0.0001g) in a 100mL beaker, respectively, add 50mL water, 3mL hydrochloric acid solution (4.9.2.1), plus Heat dissolved, with sodium hydroxide solution (4.9.2.2) to adjust the pH to about 13, boiled 3min, cooled and moved into 250mL volumetric flask, diluted with water To the mark, mix well. Filter, accurately remove 50mL filtrate in 250mL iodine bottle, add 50mL of water, with sulfuric acid solution (4.9.2.3) tune A pH of 7 was added to a solution of 10 mL of potassium phosphate dibasic (4.9.2.4), 10 mL of potassium dihydrogen phosphate (4.9.2.5), 2 g of potassium iodide (4.9.2.6), Evenly add 50mL iodine solution (4.9.2.7), cover the bottle, seal, shake, placed in the dark for 30min, with sodium thiosulfate standard solution Liquid (4.9.2.8) Titration to the near end, adding 3mL starch indicator solution (4.9.2.9), continue titration until the solution blue disappears as the end point. Simultaneously Make a blank test. 4.9.4 Calculation Results Methionine content in terms of mass fraction X2, the value is expressed in%, according to equation (3) calculation. X2 = (V3-V4) × c2 × 0.0746 × 5 m3 × 100 (3) In the formula. V3 --- titration blank solution consumed sodium thiosulfate standard solution volume, in milliliters (mL); V4 --- titration sample solution consumed sodium thiosulfate standard solution volume, in milliliters (mL); c2 --- sodium thiosulfate standard solution of the actual concentration in units of moles per liter (mol/L); 0.0746 --- with 1.00mL sodium thiosulfate standard solution [c (Na2S2O3) = 1.000mol/L] in grams equivalent of ammonia The mass of acid m3 --- the quality of the sample, in grams (g). Keep three significant figures, taking the arithmetic mean of parallel determination results as the determination result. 4.9.5 Repeatability Under repeatability conditions, the absolute difference between two parallel determination results is not more than 1%. 4.10 network (chelation) rate determination According to the method specified in GB/T 13080.2 Determination.

5 inspection rules

5.1 group approved With the same material, the same production process, continuous production or the same batch of products produced for a group. 5.2 Sampling According to the provisions of GB/T 14699.1 sampling. 5.3 factory inspection The items listed in Table 1, manganese, methionine, moisture, total arsenic and lead content for the factory inspection items. 5.4 type test Type inspection items for all the requirements of Chapter 3. Product normal production, at least once every six months type test, but the following conditions When one of the conditions, also conducted type testing. a) when the product is shaped b) there is a big change in the production process or the source of raw materials, which may affect the product quality; c) stop production for more than three months, to resume production; d) the factory test results and the last type test results are quite different. 5.5 decision rules Inspection results have an indicator does not meet the requirements of this standard, should be re-sampled twice from the amount of packaging reinspection, retest results even There is an indicator does not meet the requirements of this standard, the entire batch of products is unqualified. 6 Label, package, transport and storage 6.1 Label According to GB 10648 implementation. 6.2 Packaging Packaging materials should be non-toxic, harmless, moisture-proof. 6.3 Transportation Prevent packaging damage during transport, the sun, rain, prohibit co-operation with toxic and hazardous substances. 6.4 Storage Storage to prevent the sun, rain, toxic and harmful substances prohibited mixing.

7 shelf life

Under the stipulated transportation and storage conditions, the shelf life is 24 months. ......

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