GB 34457-2017 English PDF

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GB 34457-2017: Feed additive -- Tricalcium phosphate
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB 34457-2017	199	Add to Cart	3 days	Feed additive -- Tricalcium phosphate	Valid

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Basic data

Standard ID: GB 34457-2017 (GB34457-2017)
Description (Translated English): Feed additive -- Tricalcium phosphate
Sector / Industry: National Standard
Classification of Chinese Standard: B46
Classification of International Standard: 65.120
Word Count Estimation: 10,148
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 34457-2017: Feed additive -- Tricalcium phosphate

---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 - Tricalcium phosphate ICS 65.120 B46 National Standards of People's Republic of China Feed additives tricalcium phosphate 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 is proposed and managed by the National Feed Industry Standardization Technical Committee (SAC/TC76). This standard was drafted Unit Feed Station, Sichuan Province, China Feed Industry Association, Guizhou Province Feed Supervision. The main drafters of this standard. Bai Fan, Wang Liwen, Zhang Jian Yong, Zeng Xiaofang, Wei Min, Qian Xin Shen, Zhang Jing, Zhao Gui, Li Yun, Wang Yu-ping. Feed additives tricalcium phosphate

1 Scope

This standard specifies the requirements of feed additives tricalcium phosphate, test methods, inspection rules, labeling, packaging, transportation, storage and shelf life. This standard applies to high temperature sintering, chemical precipitation, calcium phytate hydrolysis feed additive tricalcium phosphate. Molecular formula. Ca3 (PO4) 2 Relative molecular mass .310.18 (By international relative atomic mass in.2007)

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 5917.1 forage particle size determination two sieve screening method GB/T 6435 Determination of moisture in feed Determination of calcium in feed GB/T 6436-2002 GB/T 6682 analytical laboratory water specifications and test methods GB 10648 feed label Determination of total arsenic in feedstuffs GB/T 13079-2006 GB/T 13080 Determination of lead in feed - Atomic absorption spectrometry Determination of fluoride in feed - Ion selective electrode method GB/T 13088 Determination of chromium in feed GB/T 14699.1 feed sampling

3 requirements

3.1 Appearance and traits Color consistent, powdery, odorless, insoluble in water, soluble in dilute hydrochloric acid or dilute nitric acid. 3.2 Specifications Technical indicators should be consistent with the provisions of Table 1. Table 1 technical indicators Project Indicators Calcium (Ca) /% ≥ 30.0 Total phosphorus (P) /% ≥ 18.0 Loss on drying (H2O) /% ≤ 1.0 Fluorine (F)/(mg/kg) ≤.200 Arsenic (As)/(mg/kg) ≤ 10 Lead (Pb)/(mg/kg) ≤ 30 Chromium (Cr)/(mg/kg) ≤ 30 Fineness (over 0.50mm test sieve) /% ≥ 95.0 Acid insolubles /% ≤ 10.0 Sulfate (calculated as SO2-4) /% ≤ 5.0

4 test methods

The standard test methods used reagents and water, did not indicate when the other requirements, refer to analytical reagents and GB/T 6682 provisions Three water. 4.1 Sensory test Visual and odor test products appearance and smell. 4.2 Identification test 4.2.1 Reagents and materials 4.2.1.1 Glacial acetic acid. 4.2.1.2 hydrochloric acid solution. Hydrochloric acid = 1 1. 4.2.1.3 ammonia solution. Ammonia water = 23. 4.2.1.4 ammonium oxalate solution (100g/L). Weigh 10g ammonium oxalate, add water 100mL dissolved. 4.2.1.5 silver nitrate solution (17g/L). Weigh 1.7g silver nitrate, 100mL water dissolved. 4.2.1.6 nitric acid solution. Nitric acid water = 18. 4.2.2 Analysis steps 4.2.2.1 Identification of calcium ions Weigh the sample 0.1g, add 5mL glacial acetic acid dissolved (4.2.1.1), boiled and cooled and filtered, the filtrate was added 5mL ammonium oxalate solution (4.2.1.4) Produce a white precipitate. This precipitate should be dissolved in hydrochloric acid solution (4.2.1.2). 4.2.2.2 Identification of phosphate Weigh the sample 0.1g, dissolved in 10mL water, add 1mL silver nitrate solution (4.2.1.5), a yellow precipitate, the precipitate should be dissolved Ammonia solution (4.2.1.3) or nitric acid solution (4.2.1.6), insoluble in glacial acetic acid (4.2.1.1). 4.3 calcium content determination 4.3.1 Analysis steps 4.3.1.1 Preparation of test solution Weigh the sample 0.5g (accurate to 0.0001g), placed in a 100mL beaker, moistened with a small amount of water and add 10mL hydrochloric acid solution and 20mL distilled water, cover the surface dish to boil, when the solution volume is less than 20mL, add a small amount of distilled water to 30mL, a total of boiling 10min. After cooling into 250mL volumetric flask, water to volume, shake, dry filtration (discard the first 20mL filtrate). This solution is a test Solution A, used for the determination of calcium content and total phosphorus content. 4.3.1.2 Preparation of blank test solution In addition to not adding the sample, the amount of other reagents added and the preparation of the test solution exactly the same, and the same sample with the same treatment. 4.3.2 Determination Pipette Pipette 10mL Test Solution A and blank test solution were placed in 250mL Erlenmeyer flask. According to GB/T 6436- 2002, Chapter 13.2 and Chapter 14 of the method of determination and calculation. 4.4 Determination of total phosphorus content 4.4.1 Principle In acidic medium, with Quimociac as precipitating agent, all the phosphate in the sample solution forms quinoline phosphomolybdate to precipitate, Filter, drying, weighing, calculation of total phosphorus content. 4.4.2 Reagents and materials 4.4.2.1 hydrochloric acid solution. Hydrochloric acid = 1 4. 4.4.2.2 Sodium molybdate. 4.4.2.3 Citric acid. 4.4.2.4 Nitric acid. 4.4.2.5 Quinoline. 4.4.2.6 Acetone. 4.4.2.7 Quimociac solution Weigh 70g of sodium molybdate (4.4.2.2) was dissolved in 100mL of water (solution a); Weigh 60g of citric acid (4.4.2.3) was dissolved in 150mL Water and 85 mL nitric acid (4.4.2.4) (solution b); pour solution a into solution b with stirring (solution c); add in 100 mL water 35mL of nitric acid (4.4.2.4) and 5mL of quinoline (4.4.2.5) (solution d); the solution d into solution c, after 12h, with glass crucible Crucible filtration, then add 280mL acetone (4.4.2.6), diluted with water to 1000mL, mix. Store in polyethylene bottle. 4.4.3 Instruments and Equipment 4.4.3.1 glass sand crucible diameter 5μm ~ 15μm. 4.4.3.2 electric oven temperature. 4.4.4 Analysis steps Pipette 20mL test solution A (4.3.1.1) and blank test solution (4.3.1.2) were placed 250mL beaker, add Water to a total volume of about 100mL, add 50mL Quimociac solution (4.4.2.7), cover the watch glass, in (75 ± 5) ℃ water bath heat insulation 30s (During the process of adding reagent and heating, no open flame or stirring shall be allowed to avoid agglomeration). Cool to room temperature during cooling Stirring three times to four times, with a pre-(180 ± 5) ℃ or (250 ± 10) ℃ constant weight of glass sand crucible suction filtration of the supernatant by decantation Wash the bottle washing sedimentation 5 times to 6 times, each time about 20mL of water, and finally the precipitate was moved into the glass sand crucible, washed with water 3 times ~ 4 times. The glass frit crucible together with the precipitate is placed in a thermostatic oven, dried at (180 ± 5) ° C for 45 min or (250 ± 10) ° C Drying 15min, removed, placed in a desiccator cooled to room temperature, weighed, accurate to 0.0001g. 4.4.5 Calculation and representation of results Total phosphorus content of phosphorus (P) mass fraction X1, the value is expressed in%, according to equation (1) calculation. X1 = (m1-m2) × 0.0140 m × (20/250) × 100 (1) In the formula. m1 --- test solution generated quinoline phosphomolybdate precipitation quality, in grams (g); m2 --- blank test solution generated quinoline phosphomolybdate precipitation quality, in grams (g); 0.0140 --- Quinoline phosphomolybdate conversion coefficient of phosphorus; m --- the quality of the sample, in grams (g). The absolute difference between two parallel determination results is not more than 0.3%, the arithmetic mean of two parallel determination results is the determination result, and the result Keep one after the decimal point. 4.5 Determination of loss on drying According to GB/T 6435 determination. 4.6 Determination of fluorine content Weigh the sample 0.5g ~ 1g (accurate to 0.0001g), placed in 100mL volumetric flask, add 1mol/L hydrochloric acid solution and set the volume To the mark, mix, dry filter (discard the first 20mL filtrate) and collect the filtrate. Take 25mL filtrate to 50mL volumetric flask, the remaining steps by GB/T 13083-2002 Determination. 4.7 Determination of arsenic content According to GB/T 13079-2006 Chapter 5 Determination. 4.8 Determination of lead content According to GB/T 13080 determination. 4.9 Determination of chromium content According to GB/T 13088 determination. 4.10 Determination of fineness According to GB/T 5917.1 determination. 4.11 Determination of acid insoluble content 4.11.1 Reagents and materials Hydrochloric acid solution. Hydrochloric acid water = 1 1. 4.11.2 Instruments and Equipment 4.11.2.1 glass sand crucible with a diameter of 5μm ~ 15μm. 4.11.2.2 electric oven temperature. 4.11.3 Analysis steps Weigh the sample 2g (accurate to 0.0001g), placed in 250mL beaker, add 10mL hydrochloric acid solution (4.11.1) to dissolve the sample, add 200mL of water and boiled, boiled with glass sand crucible previously dried at (105 ± 2) ℃ to constant weight. The glass sand crucible with acid not The dissolved substance is placed in an electrically heated oven at (105 ± 2) ° C, dried to constant weight, and weighed. 4.11.4 Calculation and representation of results Insoluble matter content of its mass fraction X2, the value is expressed in%, according to equation (2) calculation. X2 = (m1-m2) m × 100 (2) In the formula. m1 --- glass sand crucible and the quality of acid insoluble matter, in grams (g); m2 --- glass sand crucible quality, in grams (g); m --- the quality of the sample, in grams (g). The absolute difference between the two parallel determination results is not more than 0.2%, the arithmetic mean of the two parallel determination results is the determination result, and the result Keep one after the decimal point. Determination of sulfate content 4.12.1 Reagents and materials 4.12.1.1 hydrochloric acid solution. Hydrochloric acid = 1 1. 4.12.1.2 barium chloride solution (122g/L). Weigh 12.2g barium chloride, dissolved in 100mL water. 4.12.1.3 Silver nitrate solution (17g/L). Weigh 1.7g of silver nitrate, add water 100mL dissolved. 4.12.2 Instruments and Equipment 4.12.2.1 glass sand crucible with a diameter of 5μm ~ 15μm. 4.12.2.2 water bath. 4.12.2.3 electric oven temperature. 4.12.3 analysis steps Weigh the sample 0.5g ~ 2g (accurate to 0.0001g), add 10mL hydrochloric acid solution (4.12.1.1) heated to dissolve, set the volume of 250mL Volumetric flask, filtered with slow filter paper (qualitative). Pipette pipette 20mL filtrate, placed in 250mL beaker. Add 2 drops of methyl orange indicator Hydrochloric acid solution (4.12.1.1) was added dropwise to red with an excess of 2 mL and water was added to bring the total volume to.200 mL. Boil 5min, add slowly with stirring Add 10 mL of hot (about 80 ° C) barium chloride solution (4.12.1.2) and place in a (80 ± 5) ° C water bath for 2 h. Cool to room temperature and use (105 ± 2) ℃ dry constant weight glass sand crucible filter. Wash the precipitate with water until the filtrate is free of chloride ions [test method. Take 5mL Wash solution, add 5mL silver nitrate solution (4.12.1.3) mix, place 5min does not appear cloudy]. The glass sand crucible and precipitation in (105 ± 2) ℃ drying to constant weight, weighing. 4.12.4 Calculation and representation of results Sulfate content (as SO2-4 meter) mass fraction X3 meter, the value is expressed in%, according to equation (3) calculation. X3 = (m1-m2) × 0.4116 m × (V1/V2) × 100 (3) In the formula. m1 --- glass sand crucible and precipitation quality, in grams (g); m2 --- glass sand crucible quality, in grams (g); 0.4116 --- Barium sulfate precipitation conversion coefficient of SO2-4; m --- the quality of the sample in grams (g); V1 --- take the volume of the sample decomposition liquid in milliliters (mL); V2 --- sample decomposition liquid volume, in milliliters (mL). The absolute difference between two parallel determination results is not more than 0.3%, the arithmetic mean of two parallel determination results is the determination result, and the result Keep one after the decimal point.

5 inspection rules

5.1 group approved In the same material, the same production process, continuous production or the same shift production batch of products, but each batch of products shall not exceed 60t. 5.2 Sampling According to the provisions of GB/T 14699.1 sampling. 5.3 factory inspection Among the items listed in Table 1, calcium, total phosphorus, dry weight loss and fluorine are 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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