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GB 1886.63-2015: National Food Safety Standard -- Food Additives -- Bentonite
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National Food Safety Standard -- Food Additives -- Bentonite
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GB 1886.63-2015
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Basic data | Standard ID | GB 1886.63-2015 (GB1886.63-2015) | | Description (Translated English) | National Food Safety Standard -- Food Additives -- Bentonite | | Sector / Industry | National Standard | | Classification of Chinese Standard | X40 | | Word Count Estimation | 5,534 | | Date of Issue | 2015-11-13 | | Date of Implementation | 2016-05-13 | | Regulation (derived from) | National Health and Family Planning Commission Announcement No | | Issuing agency(ies) | National Health and Family Planning Commission of the People's Republic of China | GB 1886.63-2015: National Food Safety Standard -- Food Additives -- Bentonite---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.
(National food safety standards for food additives bentonite)
National Standards of People's Republic of China
National Food Safety Standard
Food additives bentonite
Issued on. 2015-11-13
2016-05-13 implementation
People's Republic of China
National Health and Family Planning Commission released
National Food Safety Standard
Food additives bentonite
1 Scope
This standard applies to bentonite ore as raw material, processed prepared food additive bentonite (calcium group and hydrogen group).
2 Technical Requirements
2.1 Sensory requirements
Sensory requirements shall comply with the requirements of Table 1.
Table 1 Sensory requirements
Project requires test methods
Color white, gray, khaki, light green, dark blue
State powder
Take the right amount of sample is placed in white porcelain dish, Concept under natural light
Its color and state police
2.2 Physical indicators
Physical and chemical indicators should be consistent with the provisions of Table 2.
Table 2. Physical and chemical indicators
Item Index Test Method
pH (20g/L suspension) of 4.5 to 10.5 in Appendix A A.3
Fineness (0.075mm test sieve), w /% ≥ 70.0 Appendix A A.4
Loss on drying, w /% ≤ 12.0 GB 5009.3 a direct drying
Total arsenic (As)/(mg/kg) ≤ 15.0 GB 5009.11
Lead (Pb)/(mg/kg) ≤ 35.0 GB 5009.75
a drying temperature of 105 ℃ ± 2 ℃, drying time is 2h.
Appendix A
Testing method
A.1 General Provisions
Unless otherwise specified in this standard, the use of reagents were of analytical grade purity, the standard titration solution, impurity measurement standard solution preparation
And products, should be GB/T 601, GB/T 602 and GB/T 603 provisions of preparation, the test water should comply with GB/T 6682 in three water
Provisions. Solution was used in the tests did not indicate what is formulated with solvent, it refers to an aqueous solution.
A.2 Identification Test
A.2.1 Identification of silicate
0.5g of the sample is mixed with 2.5g of anhydrous potassium carbonate, inherent to the metal crucible furnace is heated to a molten mixture, cooled,
5mL water, standing 3min, the crucible slightly heat, add water to dissolve 50mL. Completely transferred to a beaker, was added dropwise a solution of hydrochloric acid (11)
Until no bubbles. Added 10mL hydrochloric acid, evaporated to dryness on a steam bath to cool. 20mL water was added, after boiling was filtered, the insoluble gel
The residue was used to identify the silicate. The filtrate was the test solution A, for the identification of aluminum.
The gelatinous residue was taken platinum crucible, 5mL of hydrofluoric acid was carefully added. The precipitate was dissolved. Heating, placed in the vapor above the crucible
A glass rod moistened with a drop of water, the water droplets become cloudy.
A.2.2 Identification of aluminum ions
Was added dropwise in the test solutions A (A.2.1) in aqueous ammonia solution (11), a white gelatinous precipitate, addition of excess aqueous ammonia solution (11), Shen
Insoluble precipitate. Was added dropwise a solution of sodium hydroxide (40g/L) to give a white gelatinous precipitate, the precipitate dissolved when added in excess.
A.3 pH (20g/L suspension) Determination
A.3.1 Instruments and Equipment
pH meter. dividing the value 0.02.
A.3.2 Analysis step
Weighed amount of sample, preparation of 20g/L of water sample suspension with a pH meter to measure the pH of the suspension.
The results parallel arithmetic mean of the measurement results shall prevail. Twice under the same condition of independent determination results obtained absolute difference
Not more than 0.2.
A.4 Determination of Fineness (0.075mm test sieve) of
A.4.1 Instruments and Equipment
Test sieves. R40/3 series, Φ200 × 50-0.075/0.050 (GB/T 6003.1).
A.4.2 Analysis step
It weighs about 20g sample to the nearest 0.01g. Exposed in a test sieve, constantly shaking, beating, and gently brushing with a dry brush, the sample
By the end, the underlying black paper sieve, sieve lightly until the sample pad black paper no trace. The sieve residue was transferred to a known mass
The surface of the dish weighing, accurate to 0.0002g.
A.4.3 Calculation Results
Fineness (0.075mm sieve test) mass fraction w1, according to equation (A.1) Calculated.
w1 =
m-m1
m × 100%
(A.1)
Where.
M --- the quality of the sample, in grams (g);
Mass m1 --- sieve residue in grams (g).
The results parallel arithmetic mean of the measurement results shall prevail. Twice under the same condition of independent determination results obtained absolute difference
Not more than 2%.
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