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GB 1886.1-2015

GB 1886.1-2015_English: PDF (GB1886.1-2015)
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GB 1886.1-2015English259 Add to Cart Days<=3 National Food Safety Standard -- Food Additives -- Sodium carbonate GB 1886.1-2015 Valid GB 1886.1-2015
 

BASIC DATA
Standard ID GB 1886.1-2015 (GB1886.1-2015)
Description (Translated English) National Food Safety Standard -- Food Additives -- Sodium carbonate
Sector / Industry National Standard
Classification of Chinese Standard X42
Classification of International Standard 67.220.20
Word Count Estimation 12,111
Date of Issue 2015-09-22
Date of Implementation 2016-03-22
Older Standard (superseded by this standard) GB 1886-2008
Regulation (derived from) PRC National Health and Family Planning Commission 2015 No.8
Issuing agency(ies) National Health and Family Planning Commission of the People's Republic of China

GB 1886.1-2015
(National food safety standards for food additives sodium)
National Standards of People's Republic of China
National Food Safety Standard
Food additive sodium carbonate
Issued on. 2015-09-22
2016-03-22 implementation
People's Republic of China
National Health and Family Planning Commission released
Foreword
This standard replaces GB 1886-2008 "food additive sodium carbonate."
This standard compared with GB 1886-2008, the main changes are as follows.
--- Standard name was changed to "national food safety standards for food additives sodium carbonate."
National Food Safety Standard
Food additive sodium carbonate
1 Scope
This standard applies to food additive sodium carbonate.
2 molecular formula and relative molecular mass
Formula 2.1
Na2CO3
2.2 relative molecular mass
105.99 (according to 2007 international relative atomic mass)
3 Technical requirements
3.1 Sensory requirements
Sensory requirements shall comply with the requirements of Table 1.
Table 1 Sensory requirements
Project requires test methods
Color White
Status crystalline powder
Take the right amount of sample is placed in a clean, dry white porcelain dish,
In natural light, observe its color and status
3.2 Physical and Chemical Indicators
Physical and chemical indicators should be consistent with the provisions of Table 2.
Table 2. Physical and chemical indicators
Item Index Test Method
Total Alkalinity (in Na2CO3 dollars) (dry basis), w /% ≥ 99.2 Appendix A A.5
Total Alkalinity (in Na2CO3 dollars) (with moisture basis), w /% ≥ 97.9 Appendix A A.5
Chloride (NaCl) (dry basis), w /% ≤ 0.70 A.6 in Appendix A
Iron (Fe) (dry basis), w /% ≤ 0.0035 Appendix A A.7
Heavy metals (Pb)/(mg/kg) ≤ 10.0 Appendix A A.8
Arsenic (As)/(mg/kg) ≤ 2.0 GB 5009.76
Water insoluble matter (dry basis), w /% ≤ 0.03 A.9 in Appendix A
Appendix A
Testing method
A.1 Safety Tips
Reagents The standard test methods used for toxic or corrosive, care should be taken. As should be immediately splashed on the skin
Rinsed with water, severe cases should be treated immediately. When using a volatile acid, to be carried out in a fume hood.
A.2 General Provisions
This standard reagents and water in the absence of other specified requirements, refer to the three water analytical reagent and GB/T 6682 regulations. test
The required standard solution, impurity standard solution, preparations and products, did not indicate when the other requirements according to GB/T 601, GB/T 602,
GB/T 603 provisions of the preparation. Solution was used in the tests did not indicate what is formulated with solvent, it refers to an aqueous solution.
A.3 Identification Test
A.3.1 Reagents and materials
A.3.1.1 hydrochloric acid.
A.3.1.2 magnesium sulfate solution. 120g/L.
A.3.1.3 saturated solution of calcium oxide.
Weigh about 3g calcium oxide, accurate to 0.1g, placed on the reagent bottle, added 1000mL water, cover stopper, shake vigorously after placing Cheng
clear. Supernatant using.
A.3.1.4 glass rod with a platinum wire ring.
A.3.2 Identification method
A.3.2.1 Preparation of test solution. Weigh about 20g sample, accurate to 0.1g, placed in a beaker, 100mL of water was added and dissolved.
A.3.2.2 wetting platinum wire ring with hydrochloric acid, colorless to burn in the flame, then dipped a little in the test solution combustion flame, the flame that was bright
yellow.
A.3.2.3 released in the test solution of hydrochloric acid was added dropwise while the carbon dioxide gas is passed into a saturated solution of calcium oxide to a white turbid liquid, continued
Ventilation cloudy to clear.
A.3.2.4 magnesium sulfate solution was added dropwise in the test solution, i.e., a white precipitate.
A.4 Determination of loss on ignition
A.4.1 Method summary
Samples were heated at 250 ℃ ~ 270 ℃ to constant mass. Loss of free water and sodium bicarbonate by the decomposition of water and dioxide when heated
Carbon, calculated loss on ignition.
A.4.2 Instruments and Equipment
A.4.2.1 weighing bottle. φ30mm × 25mm or p