Some standard content:
National Standard of the People's Republic of China
Flue-cured tobacco
1 Subject matter and scope of application
This standard specifies the technical requirements, inspection methods and acceptance rules for flue-cured tobacco GB 2635-92
This standard applies to bunches of flue-cured tobacco that have been first or re-cured but not fermented. The written standard, supplemented by physical samples, is the basis for grading, purchasing and handover. Physical samples are used as the basis for export supply. 2 Reference standards
GB8170 Numerical rounding rules
3 Terms and codes
3.1 Terms
3.1.1 Grouping
groups
Based on the location of tobacco leaves, color and certain characteristics related to their overall quality, closely related grades are divided into groups. 3.1.2 Grading
Grading of tobacco leaves in the same group according to their quality. 3.1.3 Maturity
refers to the maturity of tobacco leaves after curing (including field and curing maturity). The maturity is divided into the following grades: 3.1.3.1 Mellow
refers to the upper tobacco leaves reaching a high degree of maturity in the field and being fully ripened after curing. 3.1.3.2 Ripe
Tobacco leaves reaching maturity in the field and after curing. 3.1.3.3 Mature
Tobacco leaves have just reached maturity in the field, biochemical changes are not yet sufficient or the curing is not proper. 3.1.3.4 Unripe
Tobacco leaves have not reached maturity in the field or the curing is improper. 3.1.3.5 Premature
refers to the foot leaves, which appear to be mature but are not truly mature. 3.1.4 Leaf structure
refers to the density of tobacco leaf cells, which can be divided into the following grades: open, firm, close, tight. 3.1.5 Body
refers to the thickness, cell density or weight per unit area of tobacco leaves. In terms of thickness, it can be divided into the following grades: thin, less thin, medium, fleshy, heavy. 3.1.6 Oil
A soft semi-liquid or liquid substance contained in tobacco leaves, which can be divided into the following grades according to sensory perception: Approved by the State Administration of Technical Supervision on August 15, 1992 and implemented on September 1, 1992
3.1.6.1 Rich
Rich in oil, with an oily appearance.
3.1.6.2Oily
Still has oil, and the surface looks oily.
3.1.6.3Slightly lessoily
Less oil, and the surface looks oily.
3.1.6.4Lean
Lack of oil, and the surface looks oily.
3.1.7Color intensity
GB 2635—92
Refers to the saturation, uniformity and gloss intensity of the color on the surface of tobacco leaves. It is divided into the following grades: 3.1.7.1Deep
The color of the leaf surface is uniform and saturated.
3.1.7.2Strong
The color is uniform, and the saturation is slightly lower.
3.1.7.3 moderate
The color is fairly uniform, and the saturation is average.
3.1.7.4 weak
The color is uneven, and the saturation is poor.
3. 1.7.5 pale
The color is uneven, and the color is light.
3.1.8 length
The distance from the main vein of the leaf to the tip, expressed in centimeters (cm). 3.1.9 waste
The tobacco leaf tissue is damaged, and it loses the strength and firmness of the silk, and has basically no use value (including the spots, burnt tips and burnt edges that appear due to the increase in the maturity of the tobacco leaves), expressed in percentage (%). 3.1.10 injury
It means that the leaves have lost their original integrity due to mechanical damage, and the damaged area of each leaf does not exceed 50%, expressed in percentage. 3.1.11 Color
The state of the relevant color, color saturation and color value of the same type of tobacco leaves after curing. 3.1.11.1 Lemon
The tobacco leaves are all yellow in appearance, within the color range of light yellow and pure yellow. 3.1.11.2 Orange
orange
The tobacco leaves are orange in appearance, within the color range of golden yellow and dark yellow. 3.1.11.3 Red
The tobacco leaves are reddish yellow or light brownish yellow, within the color range of reddish yellow and brownish yellow. 3.1.12 Greenish
Refers to yellow tobacco leaves with green veins or leaves with a green area of less than 10%. 3.1.13 Green-yellow
Refers to yellow tobacco leaves with any visible green, which does not exceed 30%. 3.1.14 Slick
refers to smooth or stiff tobacco leaf tissue. Any leaf with a smooth or stiff area exceeding 20% is classified as smooth. 3.1.15 Variegated
refers to non-basic color patches on the surface of tobacco leaves (except for green and yellow tobacco), including light tobacco veins, steamed leaves and partial ash, whole leaf contamination, 492
GB 2635-92
many green marks, severe roasting, severe flushing, leaves damaged by aphids, etc. Any leaf with a variegated area reaching or exceeding 20% is considered a variegated leaf. 3.1.16 Green spotty
refers to the green marks caused by mechanical rubbing and crushing of tobacco leaves before curing. 3.1.17 Tolerance
refers to the allowable degree of mixed grades. It is allowed to be within the sum of the upper and lower grades. The purity tolerance is expressed in percentage (%). 3.2 Code
3.2.1 Color code
Color is expressed by the following codes: L-lemon yellow, F-orange yellow, R-reddish brown. 3.2.2 Group code
Group is expressed by the following codes: X-lower part (lugs), C-middle part (cutters), B-upper part (leaf), H-smoking leaf, CX-middle lower part (cutters of lugs), S-slick leaf (slick), K-variegated (variegated), V-slightly greenish (greenish), GY-green-yellow (green-yellow).
4 Grouping and grading
4.1 Grouping
According to the position of the flue-cured tobacco leaves on the tobacco plant, they are divided into: lower part, middle part, upper part; according to the dark and light color, they are divided into: lemon yellow, orange yellow, reddish brown. That is, the lower lemon yellow and orange group; the middle lemon yellow and orange group; the upper lemon yellow, orange, and reddish brown group, and another fully mature leaf group, a total of eight main groups; the sub-groups include the middle and lower variegated, upper variegated, smooth leaves, slightly green, and green-yellow. The characteristics of the part grouping are shown in Table 1. Table 1 Characteristics of the part grouping
Moderate, covered to slightly exposed, leaves
Slightly curved at the tip
Thick to thick, more exposed to protruding
Wide and round
Thin to slightly thin
Wide to wider, blunt at the tip
Wide, sharp at the tip
Note: In special cases, the part division is based on vein phase and leaf shape. 4.2 Grading
Slightly thin to medium
Medium to thick
Mostly lemon yellow
Mostly orange
Mostly orange, reddish brown
Grades are distinguished based on seven appearance grade factors such as maturity, leaf structure, identity, oil content, chroma, length, and damage of tobacco leaves. It is divided into four grades of lemon yellow and four grades of orange in the lower part; four grades of lemon yellow and four grades of orange in the middle; four grades of lemon yellow, four grades of orange and three grades of reddish brown in the upper part; two grades of mature leaves; two grades of variegated colors in the middle and lower part, and three grades of variegated colors in the upper part; two grades of smooth leaves, four grades of slightly green, and two grades of green-yellow, a total of 42 grades. 5 Technical requirements
5.1 Grade factors
Each factor is divided into different levels and combined with the corresponding levels of other related factors to outline the quality status of each level and determine the corresponding value of each level. The levels of grade factors are shown in Table 2.493
Grade factors
Quality factors
Control factors
Maturity
Leaf structure
Quality regulations are shown in Table 3.
Lemon yellow
Lemon yellow
Lemon yellow
GB2635—92
Table 2 Grade factors and levels
Still loose
Slightly thin, slightly thick
Thin, thick
Expressed in centimeters (cm)
Controlled by percentage
Quality regulations
Maturity|| tt||Leaf structure
Still loose
Still loose
Still loose
, slightly thin
Damage, %
Length, cm
Fully mature leaves
Middle and lower parts
Smooth leaves
Lower two fences
Green-yellow
Grade generation
Moisture content of tobacco leaves is stipulated in Table 4.
Maturity
The allowable amount of sand content in tobacco leaves is stipulated in Table 4.
GB2635—92
Continued Table 3
Leaf structure
More loose
More loose to slightly dense
Slightly dense to dense
Slightly thin, slightly thick
Slightly thin, slightly thick
Slightly thin, slightly thick
The tobacco leaf bundles are required to be natural bundles, with 25 to 30 leaves per bundle, a bundle head circumference of 100 to 120 mm, and a wrap width of 50 mm. 5.5
Acceptance rules
Grading principles
Length, cm Damage, %
When the maturity, leaf structure, identity, oil content, color, and length of flue-cured tobacco meet the requirements of a certain grade, and the damage does not exceed the allowable degree of a certain grade, it can be classified as a certain grade.
6.2 Determination of the final grade
If the re-inspection does not match the determined grade, the original grade will be invalid. 6.3 If a batch of tobacco leaves is on the boundary of two colors, the color will be determined first and then the grade will be determined according to other qualities. 6.4 If a batch of tobacco leaves is on the boundary of two grades, the lower grade will be determined. 6.5 If a batch of tobacco leaves has grade B factors and one factor is lower than the B grade, it will be determined as C grade; if one or more factors are higher than B grade, it will still be B grade.
6.6 Green flakes, frosted tobacco leaves, burned, smoked, odor, mildew, adulteration, excessive moisture, etc. are not graded and will not be purchased. Middle and lower part variegated grade 1 (CX1K) is limited to the waist leaf and the lower two sheds. 6.7
6.8 Smooth leaf grade 1 (S1) is limited to the waist leaf and the upper and lower two sheds. 495
6.9 Green and yellow grade 1 is limited to tobacco containing less than 20% green. 6.10 Grade 2 green-yellow tobacco contains less than 30% green. GB2635-92
6.11 In group H, H1F is orange-yellow, and H2F includes orange-yellow and reddish brown. 6.12 Tobacco leaves with a slight green in the middle and lower quality than C3V should be classified as X2V for grading. 6.13 Tobacco leaves with a middle leaf shorter than 35cm should be graded in the lower leaf group. 6.14 Tobacco leaves with a variegated area exceeding 20% should be graded in the variegated group. 6.15 Tobacco leaves with a variegated area less than 20% are allowed to be graded in the normal group, but the sum of variegated and damaged tobacco leaves shall not exceed the damage percentage of the corresponding grade. If it exceeds, it will be graded to the next level. If the sum of variegated and damaged tobacco leaves exceeds the minimum damage allowance of the group, it can be appropriately graded in the variegated group. 6.16 CX1K variegated area does not exceed 30%, if it exceeds 30%, it will be graded to the next level. 6.17B1K The area of variegated color shall not exceed 30%
6.18B2K The area of variegated color shall not exceed 40%. If it exceeds 40%, it shall be the next grade. 6.19 Faded tobacco shall be graded in the smooth leaf group.
Lightly cured red tobacco with no obvious influence on the basic color shall be graded below the second grade of the corresponding part and color group. 6.21 Tobacco leaves with smooth and variegated color on the leaves shall be graded in the variegated color group. 6.22 When variegated color exists on the leaves of green-yellow tobacco, it shall still be graded in the green-yellow tobacco group according to quality. 6.23
The calculation of damage shall be calculated as the percentage of the total damaged area in a bunch of tobacco leaves to the total area of tobacco leaves in the bunch. The integrity of each leaf must reach more than 50%. Those with less than 50% shall be classified as out-of-grade tobacco. The provisions on the damage rate are shown in Table 4. 6.24 The provisions on the purity tolerance are shown in Table 4.
Stipulations for purity tolerance
Purity tolerance shall not exceed
First-cured tobacco
(April to September
is
16~17)
, %
Natural soil content of rapid-cured tobacco
shall not exceed, %
First-cured tobacco
Re-cured tobacco
Purity tolerance shall not exceed
Breakage rate
GB263 5-92
Continued Table 4
First-cured tobacco
(April to September
16~17)
, %
Re-cured tobacco
11~13
Natural soil content shall not exceed, %
First-cured tobacco
Re-cured tobacco
6.25 Tobacco leaves that are not listed in the standard grade but still have use value can be regarded as out-of-grade tobacco. The purchasing department can purchase them according to the needs of users. Otherwise, the purchase will be refused.
6.26 The natural fragments of tobacco leaves in each package (piece) shall not exceed 3%. 7 Inspection methods
7.1 Quality inspection
7.1.1 Quality inspection shall be carried out item by item in accordance with Article 4 of this standard, with sensory identification as the main method. 7.1.2 The sampling quantity for quality inspection is 5~10kg, and it is evenly drawn from all the samples opened for on-site inspection, and at least two samples are drawn from each sample. If more than 40 samples are opened for inspection, only 40 samples need to be selected. 7.1.3 Take 1/3 of the samples for inspection and weigh them, grade them piece by piece according to the standard, weigh them separately, and calculate the qualified rate after verification. If there is any objection, another 1/3 can be taken for another inspection, and the average of the two inspection results shall prevail. 7.2 Moisture test
The sensory test method is used for on-site inspection, and the oven test method is used for indoor inspection. 7.2.1 Sampling for moisture test
The sampling quantity shall not be less than 0.5kg, and it shall be evenly drawn from all the samples opened for on-site inspection. If more than 10 samples are opened for on-site inspection, one piece shall be selected for every 2~3 pieces in excess. For each sample, 2 to 5 locations are equally spaced from a diagonal line on one side of the opening. A handful is taken from each location. Half a handful is randomly taken from each handful and placed in a sealed container. When testing, 2 to 3 complete leaves are selected from each half handful. 7.2.2 Sensory test method
The tobacco ribs of the first-cured tobacco are slightly soft and not easy to break, and there is a slight sound when held by hand, and it is not easy to break. 7.2.3 Oven test method
7.2.3.1 Instruments and appliances
Analytical balance: sensitivity 1/1000g.
Electric oven (or other oven): equipped with a temperature adjustment device, and can automatically control the temperature within the range of ±2℃, with a 0～200℃ thermometer, and the mercury silver ball is located 1.5～2.0Ocm above the sample shelf. Only the middle shelf can be used. Glass dryer: with desiccant inside.
Sample box: Aluminum, diameter 60mm, height 25mm, with numbers on the lid and the side wall of the bottom box. 7.2.3.2 Operation procedure
Evenly extract about 1/4 of the leaves from the sample to be tested, and quickly cut into small pieces or filaments with a width of no more than 5mm. After mixing, weigh about 5 to 10g of the sample in a sample box with a known dry weight, and record the weighed sample weight. After removing the cover, put it in an oven at a temperature of 100±2℃, and bake for 2h from the time the temperature 497
GB 2635-92
returns to 100C, cover it, take it out, put it in a desiccator, cool it to room temperature, and weigh it again. Calculate the percentage according to formula (1): sample weight minus weight after drying × 100.
Moisture content (%)—)
Sample weight
Note: ① Each batch of samples shall be tested in parallel, and the absolute value error between the two shall not exceed 0.5%. The average value of the parallel test results shall be the test result. If the error of the parallel test results exceeds the specified value, a third test shall be conducted, and the average value of the two results with close errors shall prevail. ②The number taken in the test result shall be based on 0.1%, and the next digit shall be rounded off according to GB8170. 7.3 Sand and soil inspection
Sensory inspection method shall be used for on-site inspection, and weight inspection method shall be used for indoor inspection. 7.3.1 Sampling for sand and soil inspection
The sampling quantity shall not be less than 1kg. The samples shall be drawn evenly from all the samples opened for on-site inspection. If more than 10 samples are opened for on-site inspection, 10 samples shall be selected as the sampling objects, and 1 handful shall be selected from each sample. If there is still a dispute between the two parties, it may be increased as appropriate. 7.3.2 Sensory inspection method
Shake the tobacco handle with your hands and no sand or dirt will fall off. If no sand or dirt is seen on the surface of the tobacco leaves, the tobacco leaves are qualified. 7.3.3 Weight inspection method
7.3.3.1 Tools
Analytical balance: sensitivity 1/10g.
Brush: 100mm wide, about 70mm long. Separation sieve: 0.25mm aperture (equivalent to 60 holes in 1 square inch), with sieve cover and sieve bottom. 7.3.3:2 Operation procedure
Take two parallel samples evenly from the sample to be inspected, each weighing about 400-600g. Weigh the sample, untie the tobacco handle on glossy paper, and brush each side of the tobacco leaves 5-8 times with a brush. Brush clean, collect the sand or dirt brushed off, and pass it through the separation sieve until it can no longer be sieved. Weigh the sand and soil under the sieve, record the weight, and calculate the sand and soil percentage according to formula (2): Sand and soil weight × 100·
Sand and soil ratio (%) =
Sample weight
Note: ① The average of the results of two parallel tests is the test result. ② The number of digits taken in the test result shall be based on 0.1%, and the next digit shall be rounded according to GB 8170. 7.4 Flame-out smoke test
: (2)
7.4.1 Sampling for flame-out smoke test
Quantity of sampling Take 5 places from each piece, take two handfuls at random from each place, and take 1 piece from each handful. Take an average of all the samples opened on site. For unformed tobacco leaves, take 10 handfuls evenly for every 50kg, 1 piece per handful, for a total of 10 pieces. For those less than 50kg, take 10 handfuls, 1 piece per handful. 7.4.2 The flame-out smoke test uses the combustion method. Cut the middle 1/3 of each leaf horizontally (excluding the tip and base of the leaf) and then cut it into three strips horizontally. After lighting them on an open flame, blow out the flames and count the time until the last fire point is extinguished. This is the smoldering time. If two of the three strips have a smoldering time of less than 2 seconds, they are extinguished leaves. After testing in this way, calculate the extinguishing rate of tobacco leaves according to formula (3): Number of extinguished leaves × 100
Extinguishing rate (%) =
Total number of leaves inspected
8 Inspection rules
8.1 Grading, sale, purchase, supply and delivery shall be carried out in accordance with this standard. (3)
8.2 On-site inspection
8.2.1 Sample quantity: 10% to 20% of the samples for each batch (referring to the same region and the same grade of flue-cured tobacco) within 100 pieces, and 5% to 10% of the samples for the part exceeding 100 pieces. If necessary, the sampling ratio can be increased as appropriate. 8.2.2 For sampling of completed pieces, 5 to 7 samples are randomly selected from the center of each piece to its surroundings, about 3 to 5 kg. 8.2.3 For sampling of uncompleted tobacco, all samples can be inspected, or 6 to 9 samples are randomly selected from different parts, about 3 to 5 kg or 30 to 50 pieces. 8.2.4 The samples are inspected in accordance with Article 7 of this standard. 498
GB 2635-92
8.2.5 If any party has different opinions on the inspection results during the on-site inspection, the results shall be sent to the higher-level technical supervision department for inspection. If there are still objections to the inspection results, the inspection may be repeated, and the re-inspection results shall prevail. 9 Physical Standard SamplesbZxz.net
9.1 Physical standard samples are the vouchers for inspection and grading, and are one of the bases for inspection. 9.2 Physical standard samples are divided into two categories: reference standard samples and imitation standard samples. 9.2.1 Reference standard samples are formulated according to the written standards, approved by the Tobacco Leaf Standard Standard Sub-Technical Committee of the National Tobacco Standardization Technical Committee, and approved for implementation by the State Administration of Technical Supervision. They are replaced every three years. 9.2.2 Imitation standard samples are imitated by the relevant departments of each province, city, and autonomous region based on the reference standard samples, and approved for implementation by the provincial technical supervision bureau. Imitation standard samples are updated once a year.
9.3 Principles for the formulation of physical standard samples
9.3.1 Representative samples are mainly medium-quality leaves of tobacco leaves of various grades, including better and worse leaves of roughly equal grades. Each bunch has 20 to 25 leaves.
9.3.2 Leaves without damage or breakage can be used. 10 Packaging, marking, transportation, storage
10.1 Packaging
10.1.1 Each package (piece) of flue-cured tobacco must be from the same production area and the same grade. 10.1.2 The packaging materials must be firm, dry, clean, odorless, and non-toxic. 10.1.3 The tobacco sticks in the package (piece) should be arranged neatly and pressed in sequence, and no debris should be allowed. 10.1.4 Packaging types
There are two types of sack packaging and carton packaging.
10.1.4.1 Sack packaging
The net weight of each package is 50kg, and the volume of the package is 400mm×600mm×800mm. 10.1.4.2 Carton or wooden box packaging
The net weight of each box is 200kg, and the outer diameter specification is 1115mm×690mm×725mm. 10.2 Marking
10.2.1 The writing must be clear and a marking card must be placed inside the package. 10.2.2 Contents of the front marking of the package (piece): a.
Origin (province, county);
Grade (in capital letters and code);
Weight (gross weight, net weight);
Year and month of the product;
Name of the supplier.
10.2.3 The grade and code should be marked around the package. 10.3 Transportation
10.3.1 When transporting the package, it must be covered with a cover, tightly wrapped, tightly covered, and protected from sunlight and moisture. 10.3.2 It must not be transported together with odorous and toxic items, and it must not be transported on odorous and contaminated means of transport. 10.3.3 Loading and unloading must be done with care and the package must not be dropped or hooked. 10.4 Storage
10.4.1 Stack height
The height of the first flue-cured tobacco packaged in gunny bags shall not exceed 5 bales, and that of the first flue-cured tobacco packaged in gunny bags shall not exceed 6 bales; the height of the second flue-cured tobacco packaged in gunny bags shall not exceed 7 bales. This limitation does not apply to cardboard packaging. 499
10.4.2 The location
GB2635-92
must be dry and ventilated, with high terrain, and not close to fire sources and oil tanks. 10.4.3 The bales
must be placed on stone and wood at a height of more than 300mm from the ground, and at least 300mm from the wall of the house. 10.4.4 It shall not be mixed with toxic substances or substances with peculiar smell. 10.4.5 The open-air pile
must be covered with anti-glare and sunscreen materials around it, and sealed tightly. The bottom of the stack must be at least 300mm above the ground, and the wood (stone) must be aligned with the bag to prevent rainwater from seeping in. 10.4.6 Storage must be moisture-proof, fire-proof, mildew-proof, and insect-proof. Regular inspections should be carried out to ensure product safety. Additional notes:
This standard is proposed by the State Tobacco Monopoly Bureau.
This standard is under the jurisdiction of the National Tobacco Standardization Technical Committee. This standard was drafted by China National Tobacco Corporation and Zhengzhou Tobacco Research Institute. The main drafters of this standard are Yu Huatang, Feng Guozhen, Wang Weikang, Guan Boqian, Zeng Jiucong, and Nie Heping. 5001 Sampling quantity: for each batch (referring to the same region and the same grade of flue-cured tobacco) within 100 pieces, 10% to 20% of the samples shall be taken, and for the part exceeding 100 pieces, 5% to 10% of the samples shall be taken. If necessary, the sampling ratio shall be increased as appropriate. 8.2.2 For sampling of completed pieces, 5 to 7 samples shall be randomly inspected from the center of each piece to its surroundings, about 3 to 5 kg. 8.2.3 For sampling of uncompleted tobacco, all of them can be inspected, or 6 to 9 samples shall be randomly inspected by position, about 3 to 5 kg or 30 to 50 pieces. 8.2.4 The samples shall be inspected in accordance with Article 7 of this standard. 498
GB 2635-92
8.2.5 If any party has different opinions on the inspection results during the on-site inspection, the inspection shall be sent to the superior technical supervision department for inspection. If there is still objection to the inspection results, it can be re-inspected, and the re-inspection results shall prevail. 9 Physical Standard Samples
9.1 Physical Standard Samples are the vouchers for inspection and grading and are one of the bases for inspection. 9.2 Physical Standard Samples are divided into two categories: reference standard samples and imitation standard samples. 9.2.1 Reference standard samples are formulated according to the written standards, approved by the Tobacco Leaf Standard Standard Sub-Technical Committee of the National Tobacco Standardization Technical Committee, and approved for implementation by the State Administration of Technical Supervision. They are replaced every three years. 9.2.2 Imitation standard samples are imitated by the relevant departments of each province, city, and autonomous region based on the reference standard samples, and approved for implementation by the provincial technical supervision bureau. Imitation standard samples are updated once a year.
9.3 Principles for the formulation of physical standard samples
9.3.1 Representative samples are mainly medium-quality leaves of tobacco leaves of various grades, including better and worse leaves of roughly equal grades. Each bunch has 20 to 25 leaves.
9.3.2 Leaves without damage or breakage can be used. 10 Packaging, marking, transportation, storage
10.1 Packaging
10.1.1 Each package (piece) of flue-cured tobacco must be from the same production area and the same grade. 10.1.2 The packaging materials must be firm, dry, clean, odorless, and non-toxic. 10.1.3 The tobacco sticks in the package (piece) should be arranged neatly and pressed in sequence, and no debris should be allowed. 10.1.4 Packaging types
There are two types of sack packaging and carton packaging.
10.1.4.1 Sack packaging
The net weight of each package is 50kg, and the volume of the package is 400mm×600mm×800mm. 10.1.4.2 Carton or wooden box packaging
The net weight of each box is 200kg, and the outer diameter specification is 1115mm×690mm×725mm. 10.2 Marking
10.2.1 The writing must be clear and a marking card must be placed inside the package. 10.2.2 Contents of the front marking of the package (piece): a.
Origin (province, county);
Grade (in capital letters and code);
Weight (gross weight, net weight);
Year and month of the product;
Name of the supplier.
10.2.3 The grade and code should be marked around the package. 10.3 Transportation
10.3.1 When transporting the package, it must be covered with a cover, tightly wrapped, tightly covered, and protected from sunlight and moisture. 10.3.2 It must not be transported together with odorous and toxic items, and it must not be transported on odorous and contaminated means of transport. 10.3.3 Loading and unloading must be done with care and the package must not be dropped or hooked. 10.4 Storage
10.4.1 Stack height
The height of the first flue-cured tobacco packaged in gunny bags shall not exceed 5 bales, and that of the first flue-cured tobacco packaged in gunny bags shall not exceed 6 bales; the height of the second flue-cured tobacco packaged in gunny bags shall not exceed 7 bales. This limitation does not apply to cardboard packaging. 499
10.4.2 The location
GB2635-92
must be dry and ventilated, with high terrain, and not close to fire sources and oil tanks. 10.4.3 The bales
must be placed on stone and wood at a height of more than 300mm from the ground, and at least 300mm from the wall of the house. 10.4.4 It shall not be mixed with toxic substances or substances with peculiar smell. 10.4.5 The open-air pile
must be covered with anti-glare and sunscreen materials around it, and sealed tightly. The bottom of the stack must be at least 300mm above the ground, and the wood (stone) must be aligned with the bag to prevent rainwater from seeping in. 10.4.6 Storage must be moisture-proof, fire-proof, mildew-proof, and insect-proof. Regular inspections should be carried out to ensure product safety. Additional notes:
This standard is proposed by the State Tobacco Monopoly Bureau.
This standard is under the jurisdiction of the National Tobacco Standardization Technical Committee. This standard was drafted by China National Tobacco Corporation and Zhengzhou Tobacco Research Institute. The main drafters of this standard are Yu Huatang, Feng Guozhen, Wang Weikang, Guan Boqian, Zeng Jiucong, and Nie Heping. 5001 Sampling quantity: for each batch (referring to the same region and the same grade of flue-cured tobacco) within 100 pieces, 10% to 20% of the samples shall be taken, and for the part exceeding 100 pieces, 5% to 10% of the samples shall be taken. If necessary, the sampling ratio shall be increased as appropriate. 8.2.2 For sampling of completed pieces, 5 to 7 samples shall be randomly inspected from the center of each piece to its surroundings, about 3 to 5 kg. 8.2.3 For sampling of uncompleted tobacco, all of them can be inspected, or 6 to 9 samples shall be randomly inspected by position, about 3 to 5 kg or 30 to 50 pieces. 8.2.4 The samples shall be inspected in accordance with Article 7 of this standard. 498
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8.2.5 If any party has different opinions on the inspection results during the on-site inspection, the inspection shall be sent to the superior technical supervision department for inspection. If there is still objection to the inspection results, it can be re-inspected, and the re-inspection results shall prevail. 9 Physical Standard Samples
9.1 Physical Standard Samples are the vouchers for inspection and grading and are one of the bases for inspection. 9.2 Physical Standard Samples are divided into two categories: reference standard samples and imitation standard samples. 9.2.1 Reference standard samples are formulated according to the written standards, approved by the Tobacco Leaf Standard Standard Sub-Technical Committee of the National Tobacco Standardization Technical Committee, and approved for implementation by the State Administration of Technical Supervision. They are replaced every three years. 9.2.2 Imitation standard samples are imitated by the relevant departments of each province, city, and autonomous region based on the reference standard samples, and approved for implementation by the provincial technical supervision bureau. Imitation standard samples are updated once a year.
9.3 Principles for the formulation of physical standard samples
9.3.1 Representative samples are mainly medium-quality leaves of tobacco leaves of various grades, including better and worse leaves of roughly equal grades. Each bunch has 20 to 25 leaves.
9.3.2 Leaves without damage or breakage can be used. 10 Packaging, marking, transportation, storage
10.1 Packaging
10.1.1 Each package (piece) of flue-cured tobacco must be from the same production area and the same grade. 10.1.2 The packaging materials must be firm, dry, clean, odorless, and non-toxic. 10.1.3 The tobacco sticks in the package (piece) should be arranged neatly and pressed in sequence, and no debris should be allowed. 10.1.4 Packaging types
There are two types of sack packaging and carton packaging.
10.1.4.1 Sack packaging
The net weight of each package is 50kg, and the volume of the package is 400mm×600mm×800mm. 10.1.4.2 Carton or wooden box packaging
The net weight of each box is 200kg, and the outer diameter specification is 1115mm×690mm×725mm. 10.2 Marking
10.2.1 The writing must be clear and a marking card must be placed inside the package. 10.2.2 Contents of the front marking of the package (piece): a.
Origin (province, county);
Grade (in capital letters and code);
Weight (gross weight, net weight);
Year and month of the product;
Name of the supplier.
10.2.3 The grade and code should be marked around the package. 10.3 Transportation
10.3.1 When transporting the package, it must be covered with a cover, tightly wrapped, tightly covered, and protected from sunlight and moisture. 10.3.2 It must not be transported together with odorous and toxic items, and it must not be transported on odorous and contaminated means of transport. 10.3.3 Loading and unloading must be done with care and the package must not be dropped or hooked. 10.4 Storage
10.4.1 Stack height
The height of the first flue-cured tobacco packaged in gunny bags shall not exceed 5 bales, and that of the first flue-cured tobacco packaged in gunny bags shall not exceed 6 bales; the height of the second flue-cured tobacco packaged in gunny bags shall not exceed 7 bales. This limitation does not apply to cardboard packaging. 499
10.4.2 The location
GB2635-92
must be dry and ventilated, with high terrain, and not close to fire sources and oil tanks. 10.4.3 The bales
must be placed on stone and wood at a height of more than 300mm from the ground, and at least 300mm from the wall of the house. 10.4.4 It shall not be mixed with toxic substances or substances with peculiar smell. 10.4.5 The open-air pile
must be covered with anti-glare and sunscreen materials around it, and sealed tightly. The bottom of the stack must be at least 300mm above the ground, and the wood (stone) must be aligned with the bag to prevent rainwater from seeping in. 10.4.6 Storage must be moisture-proof, fire-proof, mildew-proof, and insect-proof. Regular inspections should be carried out to ensure product safety. Additional notes:
This standard is proposed by the State Tobacco Monopoly Bureau.
This standard is under the jurisdiction of the National Tobacco Standardization Technical Committee. This standard was drafted by China National Tobacco Corporation and Zhengzhou Tobacco Research Institute. The main drafters of this standard are Yu Huatang, Feng Guozhen, Wang Weikang, Guan Boqian, Zeng Jiucong, and Nie Heping. 500
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