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GB 1887-2007: Food additive -- Sodium bicarbonate
GB 1887-2007
GB
NATIONAL STANDARD OF THE
PEOPLE?€?S REPUBLIC OF CHINA
ICS 67.220.20
X 42
Replacing GB 1887-1998
Food additive - Sodium bicarbonate
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ISSUED ON. OCTOBER 29, 2007
IMPLEMENTED ON. JUNE 01, 2008
Issued by.
General Administration of Quality Supervision, Inspection
and Quarantine of the People?€?s Republic of China;
Standardization Administration of the People?€?s Republic of
China.
Table of Contents
Foreword ... 3??
1 Scope ... 5??
2 Normative references ... 5??
3 Symbol ... 6??
4 Property ... 6??
5 Requirements ... 6??
6 Test methods ... 6??
7 Inspection rules ... 14??
8 Mark and label ... 14??
9 Package, transportation, and storage ... 15??
Foreword
Clause 5 and Clause 8 in this standard are mandatory; and the rest are recommended.
The consistent degree between this standard and the standard Sodium Bicarbonate (2002)
of Codex Alimentarius Commission is non-equivalent.
This standard replaces GB1887?€?1998 Food Additive - Sodium Bicarbonate.
Compared with GB1887?€?1998, the main changes of this standard are as follows.
- Adjust the indicator parameters correspondingly (3.2 of Edition 1998; Clause 5 of this
standard);
- Add the indicator and test method of content and whiteness of chloride (Clause 5 of
this standard);
- Improve the determination method of dry loss (4.3 of Edition 1998; 6.5 of this edition);
- Improve the determination method of pH value (4.4 of Edition 1998; 6.6 of this
standard);
- Improve the determination method of content of heavy metal (4.6 of Edition 1998; 6.8
of this standard);
- Improve the package and storage (Clause 6 of Edition 1998, Clause 9 of this
standard).
This standard was proposed by China Petroleum and Chemical Industry Association.
This standard shall be under the jurisdiction of Inorganic Chemicals Branch of National
Standardization Technical Committee (SAC/TC 63/SC 1) and National Food Additives
Standard Technical Committee (SAC/TC 11).
Drafting organizations of this standard. Tianjin Research and Design Institute of chemical
industry, Tianjin Alkali Factory, Inner Mongolia Yuanxing Natural Alkali Co., Ltd., Xilinguole
Sunite Alkali Co., Ltd., Soda Plant of Shandong Haihua Group, Lianyungang Alkali
Factory of Nanjing Chemical Industry Co., Ltd. of Sinopec Group, Zigong Honghe
Chemical Co., Ltd., Jiangsu Debang Xinghua Chemical Co., Ltd., Qingdao Alkali Co., Ltd.,
Hengyang Yuhua Chemical Industry Co., Ltd., Hengyang Hailian Bittern Chemical Co.,
Ltd., Guangzhou Nanxian Chemical Co., Ltd., and Alkali Lake Test Station of Inner
Mongolia Yuanxing Natural Alkali Co., Ltd.
Main drafters of this standard. Liu Youruo, Zhao Meijing, Wang Ping, Fu Yongli, Ma
Wenyuan, Li Peijun, Geng Wenfa, Zou Hong, Liu Zhen, Han Yang, Li Lili, Li Yeyong, Gao
Rungeng, and Li Yongzhong.
The previous versions replaced by this standard are as follows.
Food Additive Sodium ?€? Bicarbonate
1 Scope
This standard specifies the requirements, test method, inspection rules, sign, label,
package, transportation and storage of food additive sodium bicarbonate.
This standard is applicable to the food additive sodium bicarbonate. This product can be
used as the leavening agent or processing aids for food industry.
2 Normative references
The articles contained in the following documents have become part of this standard when
they are quoted herein. For the dated documents so quoted, all the modifications
(excluding corrections) or revisions made thereafter shall not be applicable to this
standard. For the undated documents so quoted, the latest editions shall be applicable to
this standard.
GB/T 191-2000 Packaging - Pictorial marking for handling of goods (eqv ISO 780.
1997)
GB/T 3051-2000 Inorganic chemical products for industrial use - General method for
determination of chloride content - Mercurimetric method
GB/T 5009.74-2003 Method for limit test of heavy metals in food additives
GB/T 5009.76-2003 Determination of arsenic in food additives
GB/T 6678 General principles for sampling chemical products
GB/T 6682-1992 Water for laboratory use - Specifications
GB/T 9724 Chemical reagent - General rule for the determination of pH
HG/T 3696.1 Inorganic chemical products - Preparations of standard volumetric
solutions for chemical analysis
HG/T 3696.2 Inorganic chemical products - Preparations of standard solutions for
chemical analysis
HG/T 3696.3 Inorganic chemical products - Preparations of reagent solutions for
chemical analysis
m1 - Value of mass of weighing bottle and specimen before drying, and the unit is g;
m2 - Value of mass of weighing bottle and specimen after drying, and the unit is g;
m - Value of mass of specimen, and the unit is g.
Take the arithmetic mean value of parallel determination results as the determination
result. The absolute difference of two parallel determination results shall not be more than
0.02%.
6.6 Determination of pH value
6.6.1 Instrument
PH meter. the accuracy is 0.02 pH unit.
6.6.2 Analysis steps
Weight 1.00 g ?? 0.01 g of specimen; put it in a 250 mL beaker. Add about 100 mL of water
without carbon dioxide to dissolve the specimen. Determine within 10 min according to the
regulations of GB/T 9724 (since the time when adding the water).
6.7 Determination of arsenic content
6.7.1 Method summary
It is same as Clause 8 of GB/T 5009.76?€?2003.
6.7.2 Reagents
6.7.2.1 Hydrochloric acid solution. 1+3;
6.7.2.2 Arsenic standard solution. 1 mL of this solution contains 1??g of arsenic.
Weigh 1.00 mL of arsenic standard solution according to the requirements of HG/T 3696.2;
put it in a 100 mL bottle; use water to dilute to the mark; and shake it uniformly. Prepare
this solution before using it.
6.7.2.3 Other reagents are same as Clause 9 of GB/T 5009.76.
6.7.3 Instruments and equipment
It is same as Clause 10 of GB/T 5009.76?€?2003.
6.7.4 Analysis steps
Weigh 1.00 g ?? 0.01 g of specimen; put it in a 100 mL beaker. Add 10 mL of hydrochloric
acid solution to dissolve the specimen.
Use pipette to weigh 1 mL of arsenic standard solution as the standard comparison
solution. Determine according to the regulations of Clause 11 of GB/T 5009.76?€?2003.
6.11.2.2.1 95% (volume fraction) ethanol solution;
6.11.2.2.2 Nitrate solution. 1+6;
6.11.2.2.3 Silver nitrate solution. 17 g/L;
6.11.2.2.4 Chloride standard solution. 1 mL of this solution contains 0.01 mg of chloride.
Take 10.00 mL of chloride standard solution according to the requirements of HG/T 3696.2;
put it in a 100 mL bottle; use the water to dilute to the mark; and shake it uniformly.
6.11.2.3 Analysis step
Weigh 1.00 g ?? 0.01 g of specimen; put it in a 50 mL beaker; add the appropriate water to
dissolve; transfer all to a 100 mL volumetric bottle; use water to dilute to the mark; shake it
uniformly. Use pipette to take 25 mL of above test solution; put it in a 50 mL colorimetric
tube; add 1 mL of ethanol solution with the volume fraction of 95%, 3 mL of nitric acid
solution, and 2 mL of silver nitrate solution; use water to dilute to the mark; shake it slightly.
After placing it for 10 min, compare the standard turbidity solution against black
background. The generated turbidity must not be deeper than the standard turbidity
solution.
Take 0.50 mL, 1.50 mL, 2.00 mL, 2.50 mL, 5.00 mL of chloride standard solution as the
standard turbidity solutions; process it together with the specimen in the same way at the
same time.
6.12 Determination of whiteness
6.12.1 Instruments and equipment
Whiteness meter. with the standard whiteness plate and working whiteness plate; the
division value is 0.2 degree;
Standard whiteness plate.
6.12.2 Analysis steps
Use the regularly-calibrated standard whiteness plate to calibrate the working whiteness
plate. Adjust the whiteness meter to the working state; put the specimen in powder dish
uniformly, so as to make the specimen exceed about 2cm of powder dish. Use the smooth
glass plate to cover on the surface of specimen; tightly press the specimen; rotate it
slightly; remove the glass plate. Observe the specimen surface along the horizontal
direction. It shall be free of unevenness, defect, scar and other abnormal conditions.
Put the specimen dish on the instrument platform; determine the whiteness value,
accurate to 0.1 degree. Put the specimen dish on the instrument platform to rotate 90
degrees; determine the whiteness value, accurate to 0.1 degree; then rotate it for 90
degrees; determine the whiteness value, accurate to 0.1 degree. The difference of three
determined results shall not be more than 0.5 degrees.
9 Package, transportation, and storage
9.1 The food additive sodium bicarbonate shall use the following packaging method.
9.1.1 Plastic woven bag package. the inner package shall use the polyethylene plastic film
bag for food; the inner bag shall be manually tied by the nylon rope or other ropes with the
equivalent quality, or use other equi...