Some standard content:
TC8 67.220.20
Semiconductor: X38
Registration number: 156992005
Light Industry Standard of the People's Republic of China
QB2019—2005
Replaces Q2019-1004
Low sodium salt
Low sodlum salt
Published on March 19, 2005
National Development and Reform Commission of the People's Republic of China Implemented on September 1, 2005
Chapter 4 of this standard is mandatory, and the rest are recommended. This standard applies to the meal order of Q2019-1994 low sodium salt. Compared with QB2019-1994, this standard has the following major changes: -TYKAONYKAca-
QB2019-2005
Chemical indicators, magnesium sulfate (water) can be replaced by hexaglacial magnesium chloride, or salt can be added: the limit control of harmful elements (in F) is cancelled: a new potassium ion determination method is added.
This standard is proposed by the China Light Industry Federation. This international standard is under the jurisdiction of the National Haichao Salt Standardization Center. The minor standard was drafted by the National Haichao Salt Standardization Center, and Hangzhou Jiangouxing Salt Products Factory participated in the drafting. The main contributors to this standard are: Zhao Dun, Liu Zhida, Yue, Wei Dong. This standard was first issued in 1994 and this is the first revision. When this standard is implemented, the light industry standard QH2019-1994 issued by the China Light Industry Federation will be terminated. 1 Scope
Low sodium salt
QB2019-2005
This standard defines the product classification, requirements, test methods, inspection rules and marking, packaging, shipping boxes and storage of low sodium salt. This standard applies to low sodium salt processed with edible salt (refined), edible chlorinated egg, edible magnesium sulfate (or edible ferric chloride) as raw materials: 2 Normative references
The clauses in the underlined documents become the clauses of the standard through reference in this standard. The referenced documents are out of date, and all subsequent amendments (excluding erroneous contents) or revisions are not applicable to this standard. However, the parties to the agreement on the standard will study whether the latest versions of these documents can be used. For all undated referenced documents, the latest version shall apply to this standard. GB/T 6682 Specifications and test methods for analytical laboratory water GB/T 7718 General rules for labeling of prepackaged foods GH/T 8618-200 Methods for sampling of main products in salt industry GB/T 13025.1 General test method for salt industry - Determination of particle size GB/T 13025.2 General test method for salt industry - Determination of iodine ion GH/T 13025.4 General test method for salt industry - Determination of water-insoluble substances GB/T 13025.5 General test method for salt industry - Determination of ions GR/T 13025.6 1991 General test method for salt industry - Determination of calcium and iron ions GB/T 13025.7 General test method for salt industry - Determination of iodide ion GE/T 13025.9E General test method for salt industry - Determination of aluminum ion (surface method) GH/T 13025.10 General test method for salt industry Determination of iron ions GB/T13025.13 General test method for salt industry Determination of lead ions (Beijing-Guangzhou absorption spectrophotometry) GE/T18962 National Technical Supervision and Administration Commission [1995] 43 Regulations on the supervision of packaged products 3 Product classification According to its ingredients, it is divided into: Class 1: edible salt (refined salt), edible potassium chloride, edible acid (water) Class 2: edible salt (refined salt), edible fluoride, edible magnesium nitride (water) Class 3: edible salt (refined salt), edible potassium chloride, edible magnesium nitride (water) Class 4: edible salt (refined salt), edible potassium chloride. 4 Requirements 4.1 Sensory indicators Self-color, no odor, no obvious foreign matter unrelated to this product 2019—2005
4.2 Physical and chemical indicators
Physical and chemical indicators should comply with the requirements of Table 1,
Particle size (1.0mm sieve penetration)/(g/100g)Plasticization ban (in terms of NaCl>/(g/t00g)Potassium oxide (in terms of KCl)/(/100g)
tAquatic acid (in terms of Mg)/(go)
Iron hexahydrate (in terms of Mg)/(/10g)Main content such as and/(g/100)
Water non-material/
QB2019—2005bZxz.net
Take four volumes of potassium borate precipitate, vortex, soak with a small amount of ethanol, filter, add 15mL of ethanol to dissolve, such as 9mL of water, extract each knife, pass through the liquid source before the agent to eliminate 5.7.1.3.3 Red (HG3-958) Barrier solution (1g/L5.7.1.3.4 Acetic acid (GB/T676) 1+10)5. 7. 1. 3. 5 Is technical ethanol (GD/T 678)5.7.1.4 Analytical steps
Weigh 258 homogenate, accurately 0.001g: add water to float, transfer to 500mL main bottle, add × skirt brightness rate, detect gas, draw 25.Mml.≤251mL volumetric flask, dilute with water to scale, draw 2(1.00mL: 00tnL burning cup, add 40rL of water to the tip of the micro-<1 how> 1 drop, use (1+10) to adjust to red, slightly heat on seven stoves (5 ), add 6.5ml of sodium borohydride solution (0.1mal/L) gradually under stirring, cool to room temperature: use No. 4 glass that has been weighed <120-2), add saturated potassium permanganate solution (1g/L), transfer the sediment, store it in the lye, wash it 4-5 times, bake it in an electric oven (120=2) for 1h, cool it in a dyer until it is solid, weigh it, and then bake it 0.5 times, weigh it until the single difference between the two weighings does not exceed 0.002, which is considered to be 5. 7.1 5 Calculation of results
The unit is g/100. The formula is (1> 0.1091(m)×100
Where:
01nm 1
The potassium content of the test sample is g/100g (/0); the unit ... 2 Volumetric extraction
5.7.2.1 Principle
Potassium chloride standard solution is mixed with a certain amount of quaternary ammonium salt, and the quaternary ammonium salt is flash-extracted to form a floating quaternary ammonium salt, and then the quaternary ammonium salt is mixed with blue to make a blue solution, and the potassium ion content is determined by the indirect method. 5.7.2.2 Reagents and solutions
5.7.2.2.1 Potassium chloride standard solution [o(k*)=1.0mg/ml] Take 13 ml of the solution 2) 1.9068g of chlorinated sodium (GBT646), adjusted to 0.0001%, transferred into a 000 volumetric flask, diluted with water to the mark: mix well.
5.7.2.2.2 Lead sulfide (100g/T.), 00
5.7., 2.2.3 Sulfur-2-sulfur solution
Weigh the sodium sulfide (MS04-0 (G1) 12%-water, 71/59m, and dilute to 500m in water. 3
QB2019—2005
5.7.2.2.4 Acetic acid-sodium acetate buffer (pH=3.5)-TTKAONKAca-
Weigh 13.g of sodium acetate (CHCONa·3I0GB/T693>, dissolve in water, dilute to 100mL, add 2Tul/0,1% ethanol.
5.7.2.2.5 Calcium hydroxide (1mol/L)
Weigh 4g of calcium hydroxide, add 100mL of water at a rate of 7:5.7.2.2.6 Sodium hydroxide solution (0.7mol/L) (5.7.2.2.5) dilute 10 times: 5.7.2.2 5.2.2.28 Preparation of blue indicator solution (1 mL) Weigh 0.1% acetic acid (GB12592), dissolve in 10L of anhydrous ethyl acetate, add 10mL sodium chloride solution (0.1mL/mL), and dilute to 100mL.
5.2.2.28 Preparation of blue indicator solution (10mL) Weigh 10g of sodium chloride solution, dissolve in 9mL of water, place in a warm place for one night, add 5mL of aluminum chloride solution (100g/L), adjust pH to R~.9, add 1L of water, mix well, filter, and put into a brown bottle. 5.7.2.2.9.2 Put 5.0L of the standard solution (5.7.2.2.1) of the non-flask chemical needle into a 150-mL beaker, add water to 3 mL, add 2 mL of magnesium-acetic acid solution, and add dropwise 10.0L of the above-mentioned tetraphenylethylene standard solution (10 g/L) (5.7.2.2.9.1) continuously, and stir for 5 min. Add 4 drops of light acid blue (1/L), add 7-mol/L hydrogen emulsified solution (1 mol/L) of yellow standard color (FT of 3.5), add 0.5mL of 7.0-sodium acetate buffer solution, 0.3mL of sodium pyrochloreate, evacuate thoroughly, and use ammonium hydroxide standard solution (5.7.2.2.10) to determine the concentration of the product. The titer of potassium ion of the standard solution is calculated by the following formula: T
Wherein:
10.00-F×V
The titer of potassium ion of the quaternary ammonium salt standard solution is in milliliters (mL): The titer of fluoride standard solution is in grams (g): 10.00
The titer of the quaternary ammonium salt standard solution is in liters (mL); The conversion factor of the quaternary ammonium salt standard solution to the sodium tetranitrate standard solution is shown in 5.7.2.2.10.2: The amount of quaternary ammonium salt standard solution is in milliliters (mL). 5.7.2.2.10 Quaternary ammonium standard solution (72/L) 5. 7.2.2.10.1 Preparation: Weigh 14% benzyl ammonium bromide (CTAB) in a beaker, add 300 mL of anhydrous ethanol, dilute to 2:1, and place in a flask. 5.7.2.2.10.2 Calibration
Absorb sodium tetraphenylborate standard solution (10/5.00mL-150ml), add 3mL of water, blue finger solution (1g/L) 4: 0.5mL of acetic acid-sodium acetate solution, titrate with standard sodium hydroxide solution (5.7.2.2.10.1) until the flame stops. The conversion coefficient of quaternary ammonium salt standard solution to sodium tetraphenylborate standard solution is calculated by formula (3): 5.
Wu Zhong:
The conversion coefficient of quaternary ammonium salt standard solution to sodium tetraphenylborate standard solution is 5.0-4% sodium standard solution, the unit is 7. (ml.): 4
The conversion coefficient of quaternary ammonium salt standard solution is liter (mL) 5.7.2.3 Equipment
Unit laboratory design and testing equipment.|| tt||5.7.2.4 Analytical steps
QB2019—2005
Weigh 25 g of sample accurately to 30°C: dissolve in water, transfer to 500°C, add water to dilute the scale to the mark, shake and pipette 25 ml into a 250 ml sample bottle, add water to the mark, set 100 l of sample to 150 ml of water to 35°C, add 2 ml of magnesium sulfate-acetic acid solution, under constant pressure, drip into sodium borohydride standard solution (top 0/>10.00 ml), let stand for 5 min, add 4 drops of phenol blue solution, add 1 ml of sodium hydride solution. The empty solution turns green and the pH is about 35. Add 0.5 ml of sodium acetate solution, add 0.3 ml of powder, and under sufficient stirring, determine with standard sodium hydroxide solution until negative. 5.7.2.6 The result is calculated as follows: The potassium content of the sample is expressed in grams and grams, and the calculation formula is (4). X-Ix(10.00- ×) × 110
The potassium content of the sample is expressed in grams per 100 grams (g/1g) of the sodium standard filter. The unit is grams per litre (m/liter): The amount of sodium tetraboric acid standard solution added is expressed in grams per litre (m). The unit is the amount of sodium tetraboric acid standard solution added is expressed in grams per litre (m). The unit is the amount of sodium tetraboric acid standard solution added is expressed in grams per litre (m). The unit is the amount of sodium tetraboric acid standard solution added is expressed in grams per litre (m). 8 Potassium ions are measured at 7.5g/100g-21°C under annealing conditions. The absolute value of the results of two determinations should not exceed 0.15g/100g. 5. Iodine ions are measured according to GB/T13025.7. 5.9 Potassium ferrous ions are measured according to GB/T13025.10. 5.10 Viscosity ions are measured according to GB/T13025.9 or GB/T18962. 5.11 Magnesium ions are measured according to GB/T13025.13. 5.12 Thialdehyde or thiocarbaldehyde, sodium ... 1 Type inspection
Low sodium potential type inspection includes the quality items in the standard. Under normal production conditions, it should be carried out at least once every six months. When one of the following circumstances occurs, it should also be inspected.
QE2019—2005
Type inspection.
When there are major changes in raw materials, processes, and formulas that may affect product quality: a) When the product is discontinued for a long time and resumes production; b) When the factory inspection results are significantly different from the last type inspection; or when the national quality supervision agency proposes the requirement for necessary type inspection. d
6.1.2 Factory inspection
TIKAONKACa
The factory inspection items are the other items except lead in the physical and chemical indicators of the fourth competition requirement. 6.2 The products produced by the same processing method, the same standard model, and the first delivery are called "one batch". 6.3 Before the low sodium salt products are shipped, the production department shall conduct a batch inspection according to the provisions of this standard. The qualified tablets shall be enclosed in the packaging The product content is qualified.
6.4 The sample of low-salt products (determination of iodine) shall be taken according to the 3.4.4 salt sample production regulations of G/T8618-2001, and the sample is taken according to the inspection requirements.
5 The product quality is determined by the supplier and the buyer. When the product quality is produced and negotiated, the supplier and the buyer shall jointly take the unit and conduct inspection and dosage determination according to the provisions of this standard. The net content of low-sodium products is expected to be Meet the requirements of the home design and technical supervision [11 No. 43]. .1 If the test results show that there is damage (or particle rate), the two standards do not meet the requirements of the standard. For each batch of products, re-test within a few days. If the re-test still does not meet the requirements of this standard, the product is judged to be unqualified. Marking, packaging, transportation, storage
1.1 Packaging and marking
This product specifies the packaging table. The packaging materials shall meet the hygienic requirements of the factory. The packaging shall be strictly carried out on the Product marking is prohibited. Please do not change the price specified in GB7-18. The product name, category, specification, number, manufacturer's name and address shall be indicated on the packaging. 7.2 Transportation
The processed products of sodium-containing products shall be clean and not be packed with articles that may cause contamination of the products. If the products are damaged or their quality is degraded due to transportation, the relevant responsible party shall be responsible. 7.3 Storage
The products of low-cost products shall be properly stored to prevent forward movement and tracing. Please refer to your warehouse order.
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