Some standard content:
ICS 67.185.10
Classification number: X34
Section number, 15796-2005
Light Industry Standard of the People's Republic of China
QB/T26841
Cane molasses
Canemolasses
Published on 2005-03-19
National Development and Reform Commission of the People's Republic of China Implemented on 2005-09-01
This standard was submitted to the China Light Industry Fair. Foreword
This standard was prepared by the Technical Committee of the Food Industry Standardization and Chemical Industry Committee of Shanxi Province. Qn/T 2684 - 2005
This standard is issued by National Sugar Standardization Center, Yunnan Limu Industrial Co., Ltd., Dongzhong Energy Co., Ltd., Yangpu Nanzhong Group Co., Ltd., Dongtang Group Co., Ltd., Guangxi Panbu (Group) Co., Ltd., etc. The main investors of this standard are: Miao Miao, Bu Chuang, Da Ben, Shangfaping, Zai Hua Ni, Shang Yunzhou, Li Jinniu, Huang Jiace, Gong Yi, He Zhongliang.
Ben Hao Fa City
1 Fanyuan
Sugarcane molasses
This standard specifies the requirements, test methods, inspection and transportation, storage and storage of sugarcane molasses. QB/T26842005
This standard is suitable for the final molasses from the final product of soil separation as the production process material for eliminating aldehydes, flavor and other products. Reference: Molasses, 2 Normative references
The following clauses become the clauses of this standard through reference in this standard. For any dated referenced document, all subsequent releases (excluding the internal error rate) or specifications are not applicable! Technical standard: However, the latest versions of these documents shall not be used for the research conducted in accordance with this standard. For any undated referenced document, the latest versions shall apply to this standard. GB/T4789.1 General principles for microbiological examination of food GB/T4789.2 Determination of total number of microorganisms for microbiological examination of goods
GB/T5009.13 Determination of chlorine in food
3 Requirements
Requirement for richness
Dark color, county-shaped liquid, no odor. 3. 2 Quality requirements
Quality requirements are shown in Table 1
Table 1 Quality requirements
Total viscosity (sugar content + original content)/%
Purity (total viscous content / analyte): %
Total variable content + acid-resistant content>/%
Cam
Total amount of sodium sulfoxide/g)
Note: During the reduction period, purity shall be within the above standards and the above standards shall be determined. The total content, total amount and total purity shall be within the above standards. The Bureau of Trade and Industry shall formulate detailed contract time and technical quality approval.
4 Test method
4.1 Total sugar content
4.1.1 Determination of blue sugar content
4.1.1.1 Summary of method
The secondary virtual light method is used to measure the light exposure of the sugarcane slices before conversion, and the light intensity is calculated by the relevant technical formulas, etc. to obtain the sugarcane content.
QB/:2334—2005
4.1.1.2 Apparatus and equipment
4. 1. 1 2. 1 The sugar meter
should refer to the magic standard sugar meter, which needs to be fire-tested and has a core capacity of (7). It can measure up to 302~120. The sugar meter can be used with a standard English tube to control the H axis and 1'8> special points. The reading must be multiplied by a coefficient of 0.99971-. The loss is 2..4.1.1.2.2 The arc measuring tube
information is (2m.mm-.02)mm or (100.=0.01>mm. The meter can be calibrated with the statutory certificate or with the observation tube when it is used and has the certificate.
4.1.1.2 3 Test bottle, 100mT, 500mT..4.1.1.2.4 Fire 7, specific accuracy to ±0.0U1g4.1. 1. 2.5 Wipe the meter, 0.1℃ decay, 4.1.1. 3 Reagents
41.1.3.1 Lead nitrate [h0P02]
1. 1. 1. 3 2 Hydrochloric acid solution (24,85'Tx) with a concentration of 1.191000mL is slowly added to 850ml of distilled water, and its density is lowered to 2.1.(26),
4.1..3.3 Hydrogenated sodium chloride solution 231.5/L
120-mol sodium chloride 231.5g: transfer to a 100ml volumetric flask, add water to the scale.
4. 1. 1. 4 Determination steps
4. 1. . 4. 1. Calibration of the test meter
The test auxiliary meter shall be carried out with a qualified standard meter determined by the society or its metrology agency. 4.1.4.1.1 Temperature calibration of the quartz tube photometer Note: Use the test meter (without quartz potential compensator) to read the temperature at the right reading and record it by 0.2%. If this temperature differs from 20°C by more than 0.5, use formula (1) to calibrate the temperature of the standard quartz tube photometer. , =0.1: -1. 44×10 *2r- 20)1:
When reading the temperature of the tube, the temperature is 7 when the standard tube is at 10°C; a. When reading the temperature of the standard tube is 20°C, the standard tube temperature is 7°C; a. When reading the temperature of the standard tube is 20°C, the standard tube temperature is 2°C. 1.1.1.11:2 Conversion coefficients of quartz tube readings at different wavelengths The conversion coefficients of quartz tube readings at different wavelengths are not calculated. ... :31317=
Weigh the inch and fry it. When the column shows (43.333+0.), simmer it down and add 1 steaming water. Select the full volume and set the volume to 50[m3/3.3 according to:
4.1.1.4. 3 Determination
QB/T2684·2005
Liquid: 200 ml of the forged liquid is placed in a conical flask. Add 2 ml of potassium fluoride (231.5 g) and shake to the mark. Note the moisture. Filter. Inject the liquid with a 20 mm back observation to measure the optical reading. Multiply this number by 2 to get the optical rotation reading. And record the temperature of the liquid. First add 20 ml of distilled water to the bottle, add salt (24.85°C), heat it to .6°C on a hot line, and keep it at this temperature for 10 min (it should be constantly full within the first 3 min). Then immerse it in cold water, quickly cool it down and read the temperature of the piece when reading. Rinse with a little distilled water to keep the temperature! Pour the sugar solution on the meter into the bottle, take the temperature scale (if the color of the liquid is darker and a small amount of powder is shaken thoroughly, if mixed oil is found, filter the tube and measure the core single number, and use this number to make the product quality fake). And (.2) Read the temperature of the liquid on the thermometer and the precision temperature of the product. The corresponding amount should not exceed 4.1.1.4.4 Calculate the result to express
small sample and fill the sugar content S. The value is expressed in net form. According to formula (2): The result is expressed in the following digits: S = 100(P- P)×3 / [132.56-0.0794(11-g) -0.53kt- 203]. + 1....-:
Determination of reduction content, %:
Production rate:
Conversion rate (negative)
Lubricating fluid temperature, unit is long?
-8.7x degree 2
4.1.1.4,5 Permissible error
The relative error of the measurement accuracy shall not exceed 2% of the average consumption. 4.1.2 Determination of reduction content
4. 1. 2. 1 Summary
According to the constant volume method, a certain amount of Fehling's formula is used to determine the sugar content. Before the sugar content is determined, a predetermined amount of water is added to maintain the concentration below 75 mL (75 mL). Note: 4.1.2.2 Apparatus and equipment
4.1.2.2.1 Conical, 3 mL
4.1.2.2.2 Burette, 50 mL, 0.5 μL 4.7.2.3 Reagents
4.1.2.3.1 Pure sugarcane hot
Introduce 40% of its hot steam water, press 700. For the quality of the concentrated solution, the white sand sticky sugar is completely removed by cold printing, the carbon point is replaced by steel drop wave H8.0, and it is filtered through 80um120m slope filter, slowly transferred into the water filter, and quickly stirred to find that the water ratio of the whole fine liquid is 3:7. At this time, the deep liquid is stirred for 15 hours, and the micro-points are separated and generated. The concentration is 0.5% (volume fraction) of the acetylene stream: 100% vacuum card operation will be quickly carried out to purify the steps of 4.1.2.3? Standard invert sugar solution (10/L): weigh 23.750g of refined self-made high-grade sugar with a viscosity of more than 99.8% and distill it out; transfer 120ml of the solution into 250mL of a container, add 1199% concentrated acid, and cool it to 20-25℃ with a spoon. Pipette 10ml of the solution into a volumetric flask and add 3 ml of sodium hydroxide (1m1/L) until it is completely converted. Determine by the following method: 50ml of the conversion solution is taken, and the solution is determined by the carbonylation method (1m1/L) as an indicator. Dissolve it in water until it turns red. The color of the oxygen solution is exactly the same as that of the sample. Please add the hot acid solution of 2% by volume, and dilute it with cold Fehling solution No. 1 (2.5 g/L), prepare the standard solution QB/T2684--2005
4.1.2.3.3 Invert sugar (2.5 g/L), add 200 drops of low-sulfur ethanol, add sodium hydroxide (0.5 W/L) in the bottle, add water until the red color does not fade, and the sample is about: 4.1.2.3.4 Fehling's reagent
4. 1.2.3.4.1 Preparation
Divide the H solution and the B solution into two parts according to the pressure, and keep the mixture separately. Before mixing, add the B solution in the specified volume, and add them in the specified order. Otherwise, the copper will not be completely dissolved. g) Open liquid: 69.28g of sulfuric acid CuS04-5H0: After hydrolysis, transfer it into a 1000ml bottle, submerge it in water, and dig it out.
b) B liquid: 340g of sodium hydroxide solution, add about 50mL of distilled water; another one: 100g of sodium hydrogen ion solution, dissolve in 200mL of distilled water, and transfer it into the bottle. 4. 1.2. 3.4.2 Calibration
respectively pipette 10mL of Fehling's liquid B and liquid B, transfer to 300mL cone bottle, add 15mL of distilled water from the burette, add 2.5g/L standard invert sugar solution>9mL, gently remove the burette, place the bottle on the electric expansion tube of the clamp cloth, heat it to boil, add 2mL of indicator liquid to the midpoint, and make sure it is 3mL. Make a concentrated collection, add invert sugar solution from the elimination line until it is blue and moist, which is the end point. The entire titration liquid is boiling, and the endpoint should be reached within 1 minute after the titration: If the Fehling solution concentration is above 40 ml, use 40 ml of standard titration solution (2.5/.) Otherwise, calculate the concentration correction coefficient K=/40 according to 3)
- Fehling solution concentration correction coefficient
- Titration with standard titration solution, (ml) 4.1.2.3.5 Neutral lead acetate solution (.54Bx) - (33
Take 500g of the neutralized lead ions and sieve 1000ml of water, decompose the acid, and filter the upper layer. Add 54Bx (relative density 1.25) to the filtrate to make it neutral or slightly neutral (test by yourself) and no longer contain monoxide. 4.1.2.3.6 Lead removal agent
Take 70% lead ions (04H2O) and 04H2O (04H2O) and dissolve them in water. .Ttetramethyl blue solution / 10g /.
Weighing limit tetramethyl blue 1.0, heated and hydrolyzed to determine 1m: 4.1.2.4 Determination steps
4.1.2.4.1 Sample solution preparation
Use a liquid pipette or a sample solution (4.1.4.2) 50m 200m1. Standard content of the sample solution (4.1.4.2) in a bottle (54x2mL), add 6mL of lead removal agent after sufficient mixing, heat and punish the tablets. Fully mixed,.
4. 1.2. 4.2 Determination
4,1.2. 4.2.1 Pre-inspection
Use a pipette to take 1 ml of liquid and 1 ml of 3 ml of liquid respectively. Put it into a 3-dimensional bottle. Mix with a spoon. Fill the tube with 25 ml of sugar solution and add 15 ml of water. With the electric heat of the convex mesh, add 3 drops of blue liquid with a meter. Continue to add the sugar solution until the blue color turns to earth. This is the end point: this operation should be carried out within 1m, so that the entire filtration operation time is within 3mi. The required water required to prepare the sugar solution will be 75mT. Reduce the amount of reagents for the preparation of stable concentration (2) 4. 1. 2. 4. 2. 2 OB:T 2684—2005
According to the order of absorption test, filter each 10 proofs in 300m3 bottle, the water measured at the time of the class, only titrate whether it is called into the top test piece of the heart 1 called other preparation liquid, titrate with fine and pre-test, the whole boiling time and the total depth can be controlled within 3mn,
4.1.2.4.3 Calculation and result expression
The reduction carryover G of sweet point sugar treasure should be expressed in \, the technical formula (4) is used for calculation, and the result is rounded to the decimal point: 4. 1. 2. 4. 3. 1 Sugar content in the prepared sample solution, in grams () m
-100mL is filled with sample, in gramsTetramethyl blue solution / 10g /.
limit tetramethyl blue 1.0, heat and hydrolyze to determine the solution 1m: 4.1.2.4 Determination steps
4.1.2.4.1 Sample solution preparation
Use a liquid pipette or a 200m sample solution (4.1.4.2) 50mT. Add 200m1. Standard content in the bottle (4.1.4.2) to the solution 54x2mL, add 6mL of lead removal agent after sufficient mixing, heat and store. Fully mixed,.
4. 1.2. 4.2 Determination
4,1.2. 4.2.1 Pre-inspection
Use a pipette to take 1 ml of liquid and 1 ml of 3 ml of liquid respectively. Put it into a 3-dimensional bottle. Mix with a spoon. Fill the tube with 25 ml of sugar solution and add 15 ml of water. With the electric heat of the convex mesh, add 3 drops of blue liquid with a meter. Continue to add the sugar solution until the blue color turns to earth. This is the end point: this operation should be carried out within 1m, so that the entire filtration operation time is within 3mi. The required water required to prepare the sugar solution will be 75mT. Reduce the amount of reagents for the preparation of stable concentration (2) 4. 1. 2. 4. 2. 2 OB:T 2684—2005
According to the order of absorption test, filter each 10 proofs in 300m3 bottle, the water measured at the time of the class, only titrate whether it is called into the top test piece of the heart 1 called other preparation liquid, titrate with fine and pre-test, the whole boiling time and the total depth can be controlled within 3mn,
4.1.2.4.3 Calculation and result expression
The reduction carryover G of sweet point sugar treasure should be expressed in \, the technical formula (4) is used for calculation, and the result is rounded to the decimal point: 4. 1. 2. 4. 3. 1 Sugar content in the prepared sample solution, in grams () m
-100mL is filled with sample, in gramsTetramethyl blue solution / 10g /.
limit tetramethyl blue 1.0, heat and hydrolyze to determine the solution 1m: 4.1.2.4 Determination steps
4.1.2.4.1 Sample solution preparation
Use a liquid pipette or a 200m sample solution (4.1.4.2) 50mT. Add 200m1. Standard content in the bottle (4.1.4.2) to the solution 54x2mL, add 6mL of lead removal agent after sufficient mixing, heat and store. Fully mixed,.
4. 1.2. 4.2 Determination
4,1.2. 4.2.1 Pre-inspection
Use a pipette to take 1 ml of liquid and 1 ml of 3 ml of liquid respectively. Put it into a 3-dimensional bottle. Mix with a spoon. Fill the tube with 25 ml of sugar solution and add 15 ml of water. With the electric heat of the convex mesh, add 3 drops of blue liquid with a meter. Continue to add the sugar solution until the blue color turns to earth. This is the end point: this operation should be carried out within 1m, so that the entire filtration operation time is within 3mi. The required water required to prepare the sugar solution will be 75mT. Reduce the amount of reagents for the preparation of stable concentration (2) 4. 1. 2. 4. 2. 2 OB:T 2684—2005
According to the order of absorption test, filter each 10 proofs in 300m3 bottle, the water measured at the time of the class, only titrate whether it is called into the top test piece of the heart 1 called other preparation liquid, titrate with fine and pre-test, the whole boiling time and the total depth can be controlled within 3mn,
4.1.2.4.3 Calculation and result expression
The reduction carryover G of sweet point sugar treasure should be expressed in \, the technical formula (4) is used for calculation, and the result is rounded to the decimal point: 4. 1. 2. 4. 3. 1 Sugar content in the prepared sample solution, in grams () m
-100mL is filled with sample, in grams4.2.1.1.2 Temperature, 0.30 0.1r.4.2.12 Determination steps:
4.2.1.2.t Sample treatment:
L After the sample is fully micrometered. The state is left to improve the quality of the dilution 3--4 value, and the number of sufficient small hooks is supported. 4 2. 1.2.2 Calibration
Factory thermal water calibration instrument, 26 distilled water refractive index is 1.33299, the temperature is 20℃, the Jieduan Xiaole rate can be checked, the temperature of the instrument with the corresponding temperature of the South Institute can be found outside: 4 2. 1. 2. 3 Source determination
Play! To the technical chain of the instrument: please refer to the details of the filter product, quickly close the whole product compensation device: when talking about the dream mirror, adjust the light source and read the reflection times, compensate for the bright field, relatively light, make the visual environment clear and noisy, but determine the temperature quality of the collected liquid.
12.1.2.4 Calculation of the refractive index formula (6> calculation, numbers are expressed in %, calculation number after the decimal point: )
With process price:
1 hour refractive index of semen:
hour refractive index, additional temperature correction factor for refractive index
-0, 44
1. 2. 1.2 5
to make up for the error
center, 37
two measurements were not made. 2,
speed:
10.0·+0.67
+0. 14-+0.15
2. 2. 2 Method III (rate improvement method)
4.2.2.1 Transmitter, equipment
4.2.2.1.1 Correction order, temperature 0.1Bx
4.2.2.1.2 Temperature, 0℃~30℃, 1℃4.2.2.2 Determination steps
4.2.2.2.1 Sample treatment
The sample is mixed with the gas twice of the mass of the gas, and the gas is fully maintained at QB/T2EE4—2005
4. 2. 2. 2. 2 Determine
Let the liquid in the mud sink to the peak value and discard it. Then fill the sample with dense liquid, remove all the red bubbles in the sample, and slowly put the light-reduced thermometer into the tube (if there is a small thermometer in the thermometer, then capture it separately! 4.2.2.2.3 Calculation and result table
Ⅱ 7) Calculate the value with the typical formula of oil overflow, and show the value in %, and calculate the result to the center point. Figure evaluation (=N(BxI)
Production number:
Therefore, it is also the evaluation of liquid. When Bx is used alone, the density group temperature is slow. Table 5 Table 5 Density temperature correction number
Practice and set the above number,
Depth core x
After shallow calibration:%
: Take the liquid temperature step of 20%, the suppression is 4SDz1: as the standard, II should be above. The liquid temperature is 43*13x~50x. 4.2.2.2.4 Allowable error
The measured value shall not be 2 times the average value! 4.3 Acidity
4.3. 1 Method Summary
The acid source is passed through a gas car with a volume of 10 sodium droplets (1m/s). The acidity of the droplets is measured by a glass control glass at a rate of about 7.00 + 0.02. The drop rate can be measured by titrating the appropriate titration needle. 4.3.2 Receiver, equipment
4.3.2.1 pH meter, mass spectrometer, pH 4.3.2.2 burette, scale F. 1 4.3.3 Reagents 4.3.3.1 Hydrogen emulsion standard 0.1 mol/L sodium ion and 5.2 mL of sodium ion are used for calibration with distilled water containing no alkali monoxide (000 mL). 4.3.3.2 Neutral phosphorus acid solution (0.1 mol/L) or potassium ion solution (0.1 mol/L) Adjust the pH value of distilled water to 17.0 ± 0.1). 4.3.4 Determination steps 4.3.4.1 Preparation of solution After stirring well, weigh or 5.0 beaker and dissolve with 100 mL of neutral distilled water. 4.3.4. 2 Determination
Use a suitable buffer solution to calculate the end point. Insert each sample into the sample and add 0.1mol/l of sodium thiocyanate standard solution while stirring until the sample solution concentration is 7.00±0.02, which is the end point. Record the concentration of the standard solution. 4.3.4.3 Calculation and result expression
H: The acidity of the sample is calculated according to the formula (R), and the result is rounded to the decimal point. Acidity = 100cV/5-20cV Www.bzxZ.net
Calculate the concentration of the sodium thiocyanate standard solution in liters (ml/liter): The volume of the sodium thiocyanate standard solution is expressed in liters! m. 4.3.4.4 Allowable error
The difference between the two measured values shall not exceed 5% of their average value. 4.4 Total 4.4.1 Method Summary
After the inoculated concentrated micro-aldehyde is treated, it is burned at high temperature, and the residue is the product of the bowl acid ash content: 4.42 Instruments and equipment
4.4.2.1, 0℃~1℃.
4.4.2.2 Quartz tip, 100ml..
4.4.3 Reagents
4.4.3.1 Concentrated acid
4.4.4 Determination steps
4.4.4.1 Determination
Press it to the right of the two inches, weigh 5g~10g of the sample, flow into 5mL0m, heat it on the furnace until it is magnetized, put it in a high-temperature furnace and burn it at 550℃ until it is grayish white: take it out and put it in the desiccator to cool, and then put it in the desiccator to cool. Add concentrated sulfuric acid to dissolve and remove moisture, put into high temperature furnace, burn at 650℃, cool and weigh. 4.4.4.2 Calculation and result expression
The total amount of steam (ash content) is expressed in %, and is calculated by formula (9), and the number of decimal places is reduced. The total amount of ash (%) = 100 (m, m1/m
In the formula:
group quality, unit is g ();
, unit is g)
The total weight of the residue after burning is in g (). 8
4.4.4.3 The error of the two micro-measurements shall not exceed the average value of the light. 4.5 Copper
The total number of colonies shall be measured according to the method specified in GH/T5009.3. 4.6 The total number of colonies shall be measured according to the method specified in GB/T4780.·--GB/T4789.2. 5 Inspection rules
5.1 Delivery inspection
QB/T2684-2005
5.1.1 The delivery point shall be regarded as a delivery point: the delivery point shall be the same as the delivery point, and the quality certificate shall be recorded in the delivery point. The receiving party shall charge the fee based on the quality certificate, but both parties have the right to make on-site inspection or seal the door of the vehicle. After the quality inspection, the products in storage that meet the requirements of the storage plan shall be the first batch of inspection products. The inspection results of the quality inspection equipment shall be the results of the arbitration inspection of the sugarcane sugar. 5.1.2 The first batch of sugarcane sugar shall be regarded as a first batch of inspection. 5.2 Sampling Rules
The two parties in charge of supply and purchase shall take about 30 pieces of sugar from each transportation box (can) and put them into a container. Stir well to find the oil content of the first batch of sugarcane sugar. Or the two parties in charge of supply and purchase shall put them into a single sample in the contract signed by the two parties. In the contract between the two parties of supply and purchase, the quality inspection standards shall be recognized by the parties. The transportation and storage vehicles shall be cleaned and cleaned. It is strictly forbidden to transport and mix the raw materials, odorous and easily contaminated items.
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