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GB 1523-2013: Sheep wool [Including 2019XG1]
Status: Valid GB 1523: Evolution and historical versions
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Sheep wool [Including 2019XG1]
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PDF similar to GB 1523-2013
Basic data | Standard ID | GB 1523-2013 (GB1523-2013) | | Description (Translated English) | Sheep wool [Including 2019XG1] | | Sector / Industry | National Standard | | Classification of Chinese Standard | W21 | | Classification of International Standard | 59.060.10 | | Word Count Estimation | 25,278 | | Older Standard (superseded by this standard) | GB 1523-1993 | | Quoted Standard | GB/T 6976; GB/T 8170; GB/T 10685; GB/T 14270; GB/T 21030; GB/T 27629; IWTO 12 | | Regulation (derived from) | National Standards Bulletin 2013 No. 10 | | Issuing agency(ies) | General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China | | Summary | This standard specifies the wool models, specifications (grade), technical requirements, test methods, inspection rules as well as packaging, labeling, storage and transport. This standard applies to sheep wool (including superfine wool, fine wool, semi-f | GB 1523-2013: Sheep wool [Including 2019XG1]---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Sheep wool
ICS 59.060.10
W21
National Standards of People's Republic of China
Replacing GB 1523-1993
Sheep wool
Issued on. 2013-07-19
2014-05-06 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China released
Table of Contents
Introduction Ⅲ
1 Scope 1
2 Normative references 1
3 Terms and definitions
4 Technical requirements 4
5 test methods 7
15 6 Inspection Rules
7 Inspection Certificate 16
8 packaging, labeling, storage and transport 16
Appendix A (informative) wool micron diameter and quality count value corresponding to 17
Buoyancy and convection effect 18 Annex B (informative) Determination
Annex C (informative) Calibration of airflow 20
Foreword
All the technical contents of this standard is mandatory.
This standard was drafted in accordance with GB/T 1.1-2009 given rules.
This standard replaces GB 1523-1993 "wool."
The main change compared to the standard content and GB 1523-1993 as follows.
--- Revised the "wool" of this important standard terms and definitions;
--- The technical requirements "category, and so do" to "models, specifications," and refine the technical requirements;
--- Technical requirements increased gross defects, vegetable matter content requirements;
--- Clear all models of rough wool chamber allows content and enhance the operability standards;
--- Increasing the calculation method based hair, vegetable matter base;
--- The specifications A, B gross net gross rate of skirtings content made provision.
This standard is proposed and managed by China Fiber Inspection Bureau.
This standard was drafted. China Fiber Inspection Bureau, National Animal Husbandry, China Federation of Supply and Marketing Cooperatives, the State Quality Supervision, Inspection and Quarantine
Administration of Inspection and Supervision Division, China wool textile industry association, Nanjing wool market, Jiangsu Sunshine Group Co., Ltd. Shanghai Shen a tops,
Wuxi Association Group Co., Ltd., Inner Mongolia Fiber Inspection Bureau, Jiangsu Provincial Fiber Inspection Bureau, Xinjiang Uygur Autonomous Region Fiber Inspection Bureau.
The main drafters of this standard. Du Shuying, Wang Hsiao-ping, Mao Jianxin Ma Jian original, easy to wind, Zhang Feng, Ho, Zhao Ying, Chen Gang, Songzhen Xiang, Liu Zhenjiang,
Liu Changchun.
This standard was first published in 1993, this is the first revision.
Sheep wool
1 Scope
This standard specifies the wool type, specification (grade), technical requirements, test methods, inspection rules, and packaging, labeling, storage and
transport.
This standard applies to sheep wool (including superfine wool, fine wool, semi-fine wool sheep, improved sheep wool, sheep wool soil types) of production,
Transaction processing, Quality Assurance of Quality Supervision, Inspection and import and export.
2 Normative references
The following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein
Member. For undated references, the latest edition (including any amendments) applies to this document.
GB/T 6976 natural wool staple length of the test method
GB/T 8170 repair value expressed about the rules and limit values and judgment
GB/T 10685 Test method for wool fiber diameter projection microscopy
GB/T 14270 plush fiber type content of the test method
GB/T 21030 wool and other animal fibers with an average diameter of an optical fiber diameter distribution test method analyzer method
GB/T 27629 tufts of fiber breaking strength test method
IWTO-12 Siro (Sirolan) laser scanning fiber diameter analyzer method average fiber diameter and fiber diameter distribution
(Measurementofthemeananddistributionoffibrediameterusingthesirolan-laserscanfibrediameter
analyser)
3 Terms and Definitions
The following terms and definitions apply to this document.
3.1
Growth in sheep's wool fibers, referred to as wool.
3.2
Superfine wool superfinewool
The average fiber diameter of 19.0μm and less homogeneous hair.
3.3
Fine wool finewool
The average fiber diameter of 19.1μm ~ 25.0μm homogeneity hair.
3.4
Semi-fine wool mediumfinewool
The average fiber diameter of 25.1μm ~ 55.0μm homogeneity hair.
3.5
Improved wool improvedwool
Growth in improving the process of hybridization of sheep, does not meet the homogeneity of wool fibers.
3.6
Soil types wool nativewool
Growth without improvement, with the original characteristics of the breed of sheep wool fibers.
3.7
Fleece fleecewool
Obtained from live sheep, staple among interconnected mesh was tight wool.
3.8
Greasy hair greasywool
Wool washing, degreasing solvent, carbonization or otherwise un-treated.
3.9
Quality counts qualitynumber
Press the corresponding fineness of wool fiber diameter micron average number specified characteristic index (see Appendix A).
3.10
Coarse cavity hair coarsewoolhair
Shag refers to the diameter of 52.5μm or more wool fibers. Mao marrow cavity means 500 times the microscopic length of the projected image to enlarge
25mm and above the hair fibers.
3.11
Dry dead hair kemphair
Oval cross section, a horseshoe shape, hair marrow developed cortical layer is thin or absent hirsute. The appearance of dry fiber, color stay white, fragile and easily broken,
Difficulties staining.
3.12
Homogeneous hair homogeneousfleece
By the same type of wool fibers wool.
3.13
Substantially homogeneous hair partialhomogeneousfleece
In one set of each hair tufted on, most homogeneous form hair, the hair forms a small part of the heterogeneous.
3.14
Heterogeneous wool heterogeneousfleece
Different types of wool fibers wool.
3.15
Two types of hair heterotypicalhair
Having myelinated and unmyelinated hair hair two fibers forms on the same root hairs of wool fibers.
3.16
Skirtings skirtingwool
From fleece removed the periphery, and the seating arrangement wool wool obvious differences.
3.17
First leg tail hair headlegandtailwool
From the sheep shorn head, legs, tail wool.
3.18
Heterosexual fiber non-woolfibre
Other fiber wool fibers mixed.
3.19
Heavy shearing secondcuts
When repeated shearing wool short clippings.
3.20
Defects Mao faultywool, defectivewool
Defective wool. Including. Stamp hair, yellow hair residues, dung hair, bristle grass, hard mat hair, flower hair, hair scabies and weak hair section.
3.20.1
Stamp hair stampedwool
In sheep wool marked staining, such as dyeing of wool, wool asphalt, paint hair, colored hair and other waste oil pollution hair.
3.20.2
Huang residual hair canarystainedwool
Yellow pollution and pollution in some staple length of more than 50% or more wool.
3.20.3
Slurry hair dungstainedwool; dagwool
Fecal polluting wool.
3.20.4
Bristle grass burrywool
Wool wool-containing vegetable vegetable-intensive areas.
3.20.5
Hard mat hair heavycottedwool
Wool fibers to form a mat, non-tear after a single fiber, wool fiber strength serious decline in wool.
3.20.6
Flower hair colouredwool
Some Leis Wool wool fibers folder.
3.20.7
Mange hair dermatitisandacariasiswool
Suffering from scabies sheep wool made with scab or dander.
3.20.8
Weak section hair tenderwool
Factors due to malnutrition or diseases when grown sheep, leading to a part of the fiber diameter significantly thinner, reducing the strength of the wool.
3.21
Wash the yield rate
Pub quality wool after washing a percentage of greasy wool quality.
3.22
Net gross rate cleanwoolcontent
Wool was washed, oven-dry mass removal of impurities, quality and moisture regain officially sanctioned greasy rate corrected accounts containing greasy wool quality
percentage.
3.23
Lot sample lotsample
Wool samples from bulk powder batch, transaction batch skewer goods taken.
3.24
Subsample subsample
Lot sample random sample from the batch samples taken skewer representatives.
3.25
Kinetosome woolbase
It does not contain any impurities wool absolute dry weight percentage of child-like quality.
3.26
Vegetable matter base vegetablematterbase
Absolute dry ash-free mass and ethanol extracts of grass and other vegetable matter stabbed the percentage of child-like quality.
3.27
Sample testspecimen
Wash the child from the dried samples randomly taken samples for testing skewer.
3.28
Total Base insolubles totalalkali-insolublematter
All the ash-free base and the ethanol extract of insoluble matter with a sample representing absolute dry mass percentage.
3.29
Ethanol extract ethanolextractives
The percentage of ethanol used as a solvent, was dissolved in ethanol after extraction of wool grease and other substances, by accounting for the absolute dry mass of the sample expressed.
3.30
Ash ash
The sample is heated residue burning ashed at 750 ℃ ± 50 ℃, with a percentage representing absolute dry mass sample representation.
3.31
Fiber diameter fibrediameter
The degree of thickness of the wool fibers, wool fiber diameter micrometers (μm) numbers.
3.32
Average fiber diameter meanfibrediameter
The average diameter of the wool fiber.
3.33
Fiber diameter variation coefficient CVofmeanfibrediameter
The degree of wool fiber diameter change.
3.34
Staple length staplelength
Bunch of curly wool fibers in natural state, the tip points to the average straight-line distance between the root end.
3.35
The average staple length meanstaplelength
Wool fibers in natural curly state arithmetic mean staple length.
3.36
Staple length variation coefficient CVofmeanstaplelength
The average staple length extent of changes in the length of wool fibers in natural curly state.
4. Technical Requirements
4.1 homogeneous wool by model, size classification, see Table 1.
Table 1 homogeneous wool by model, size classification
Model Specifications
Assessment indicators
The average diameter
Range/μm
length
Staple average
Length/mm
Most short-haired bundle
Length/mm
Most short-haired bundle a
Hundreds fraction /%
Coarse or dry hair chamber
The number of dead hair
percentage/%
Defects HAIR
Volume fraction /%
Miscellaneous plant
Quality content /%
YM/14.5
YM/15.5
YM/16.5
YM/17.5
YM/18.5
YM/19.5
YM/20.5
YM/21.5
YM/22.5
YM/23.5
≤15.0
15.1 to 16.0
16.1 to 17.0
17.1 to 18.0
18.1 to 19.0
19.1 to 20.0
20.1 to 21.0
21.1 to 22.0
22.1 ~ 23.0
23.1 to 24.0
2.5
3.0
Coarse hair chamber
0.0
0.5
2.0
1.0
1.0
1.5
1.0
1.5
1.0
1.5
1.0
1.5
1.0
1.5
1.0
1.5
1.0
1.5
1.0
1.5
1.0
1.5
Table 1 (continued)
Model Specifications
Assessment indicators
The average diameter
Range/μm
length
Staple average
Length/mm
Most short-haired bundle
Length/mm
Most short-haired bundle a
Hundreds fraction /%
Coarse or dry hair chamber
The number of dead hair
percentage/%
Defects HAIR
Volume fraction /%
Miscellaneous plant
Quality content /%
YM/24.5
YM/26.0
YM/28.0
YM/31.0
YM/35.0
YM/41.5
YM/50.5
YM/55.1
24.1 to 25.0
25.1 to 27.0
27.1 ~ 29.0
29.1 ~ 33.0
33.1 ~ 37.0
37.1 ~ 46.0
46.1 ~ 55.0
≥55.1
3.0
4.5
Coarse hair chamber
0.0
Dry dead hair
0.3
Dry dead hair
1.5
Dry dead hair
5.0
2.0
1.0
1.5
1.0
1.5
1.0
1.5
1.0
1.5
1.0
1.5
1.0
1.5
4.2 Heterogeneity wool technical requirements below.
a) Technical Requirements Table 2 Modified wool.
Table 2 Improvement wool technical requirements
Grades average staple length/mm coarse cavity hair or dry hair root hundreds dead fraction /%
Improved First ≥60 ≤1.5
Improved Second ≥40 ≤5.0
b) the implementation of soil types wool accordance with relevant standards.
4.3 Subjective Evaluation of wool models and specifications, can step onto the next one each file, such as the controversial places objective test results shall prevail.
4.4 Staple strength between 25N/ktex ~ 20N/ktex section of hair is weak, less than 20N/ktex for serious weak section hair.
4.5 net gross rate marked in accordance with the actual test results.
4.6 skirtings content ≤1.5%.
4.7 flower hair should be packaged separately, and will be described.
4.8 loose wool and skirtings should be packaged separately, and will be described.
4.9 leg tail hair, bristles and other grass use value of gross defects, individually packaged, and will be described.
4.10 mark hair, hair should be heavily contaminated fish out, individually wrapped, and will be described.
5 test methods
5.1 Sampling
5.1.1 Sampling methods
Stick quality samples taken 5.1.1.1
Quality samples were taken skewer way to open the package, and ends in the middle of the bales were taken randomly stick enough to represent this installment wool quality samples.
5.1.1.2 batch samples taken skewer
Mao used to test the package by package shall be weighed and core drilling. Core drilling direction should be parallel to the direction of the hair, packaged or perpendicular to the direction of stacking fleece, drilling
Hole depth should be more than 50% of the length of the bales, bales edge drilling distance should be greater than 75mm. All drill core samples should be weighed in the 8h quality
The amount, to the nearest 0.1g. Drill core samples should be removed all the packing material and drill core sample was placed in a sealed container. Weigh batch samples
Sample mass, referred to as W.
5.1.1.3 subsample taken skewer
Weigh sample batch quality mixed samples, mixed samples can be mechanical and manual in two ways. After dividing the sample is thoroughly mixed
kind. The batch-like tile on the table, paved in sample thickness between 30mm ~ 60mm available dichotomy, and other methods like quartering
Products divided into 16 equal parts, and then stick in a random sample taken from each to 200g, a total of five sub-samples. It can also be multi-point sampling method in which sample paved
Even find the product is a good 20 points for sampling, sample and then flip it tails, even to find a good 20 points for sampling until sample quality
An amount of 200g, a total of five sub-samples. As the rest of the sample preparation preservation.
The sub-sample and the remaining sample taken Weigh stick quality, accurate to 0.1g. 5 sub-sample quality and the quality of the remaining mass of the sample obtained by adding
As Wb. W/Wb for the sub-sample quality correction factor.
5.1.2 Number of Samples
5.1.2.1 Sample Quality
20 per bag to take a package, removed from less than 1kg samples. Less than 20 packages of 20 count package. 100 package more than 30 per pack increase by taking
1 package, the package is less than 30 by 30 meter package. Samples of each batch of the total mass of less than 15kg. The samples were taken, said wool quality design quality, mind
For Wp.
5.1.2.2 lot sample
Drill core samples stick to take the total batch mass less than 1200g.
5.1.2.3 subsample
Sub-sample taken for quality skewer 200g.
5.2 Inspection
5.2.1 fiber diameter
In the acquisition of part of the subjective method of determination can be taken, such as the dispute, by an objective test results shall prevail.
5.2.2 Staple natural length
According to GB/T 6976 inspection.
5.2.3 Staple Strength
According to GB/T 27629 for inspection.
5.2.4 coarse cavity hair or dry dead hair content
According to GB/T 14270 for inspection.
5.2.5 defect Mao and skirtings
5.2.5.1 Inspection
The wool quality samples taken at the tiled bench, from sorting out the gross defects and skirtings were weighed and were referred to as quality
Wc and Wk.
5.2.5.2 Calculation of the mass fraction of gross defects
According to equation (1) to calculate the mass fraction of gross defects.
C = WcWp ×
100% (1)
Where.
C --- defect gross mass fraction,% (accurate to 0.01);
Wc --- hair quality defects, in kilograms (kg) (accurate to 0.01kg);
Wp --- whole batch wool quality sample weight, in kilograms (kg) (accurate to 0.1kg).
5.2.5.3 skirtings mass fraction calculation
According to equation (2) calculation skirtings quality score.
K = WkWp ×
100% (2)
Where.
K --- skirtings mass fraction,% (accurate to 0.01);
Wk --- skirtings mass, in kilograms (kg) (accurate to 0.01kg);
Wp --- whole batch wool quality sample weight, in kilograms (kg) (accurate to 0.1kg).
5.3 net gross rate, the net amount of gross public
5.3.1 Calculation removed after packaging and strapping material wool quality
The whole consignment shall be referred to the count bales bales quality, accurate to 0.01kg, and deduct packaging and strapping material quality, (3) cargo calculated according to the formula
Removal of wool quality packaging and bundling was after.
Wn = Wg-Wt (3)
Where.
Wn --- removing the wool quality packaging and bundling was after, in kilograms (kg) (accurate to 0.1kg);
Wg --- bale weighing the total mass, in kilograms (kg) (accurate to 0.1kg);
Wt --- total packaging and bundling of substance, in kilograms (kg) (accurate to 0.1kg).
5.3.2 sub-sample of washing and drying
5.3.2.1 apparatus and appliances
Instruments and amount are.
a) scouring equipment. scouring tank, the effective capacity of 10L or more, or to meet the testing requirements, together with a double copper mesh sandwiched bottom (per 25mm
100 mesh) and a suitable drainage system;
b) centrifugal dewatering machine;
c) a non-ionic detergent concentration of 0.3% ~ 0.4%;
d) oven (with minimum scale of the box 0.01g balance and thermostatic control devices);
e) compulsory rapid dryer.
5.3.2.2 Test procedure
5.3.2.2.1 washing sub-sample
First. rinsing (water temperature 35 ℃ ~ 45 ℃), 1min;
Second. washing (water temperature of 52 ℃ ± 3 ℃), 3min;
Third. rinsing (water temperature 35 ℃ ~ 45 ℃), 1.5min;
Fourth. washing (water temperature of 52 ℃ ± 3 ℃), 3min;
Fifth. rinsing (water temperature 35 ℃ ~ 45 ℃), 1.5min;
Sixth. rinsing (water temperature 35 ℃ ~ 45 ℃), 1.5min.
After washing short hair should be collected and all impurities sieve to remove sand and other foreign matter was washed with separation, and the collected shorthair
Vegetable matter merge into the sub-sample. If there is loss of wool fiber and vegetable impurities during washing, it needs to be corrected loss. Lost sheep
Wool fiber and vegetable impurities average loss shall not exceed the sub-sample was washed with 0.3% by mass.
5.3.2.2.2 drying subsamples
The sub-sample after washing dehydration, placed within 105 ℃ ± 2 ℃ oven drying to constant weight, weighed to the nearest 0.01g. As in the case of non-standard atmosphere
Drying, the mass of the sample temperature and humidity should be corrected, the correction coefficient check Table B.1 and Table B.2. Outside the box weighed should be buoyant
And convection amended. Method for determining the buoyancy and convection Effect in Appendix B.
5.3.3 ethanol extract, ash, vegetable matter and total alkaloids insoluble content
5.3.3.1 ethanol extract
5.3.3.1.1 equipment and reagents
a) Soxhlet extractor;
b) constant temperature water bath;
c) constant temperature oven;
d) Analytical balance. minimum scale value 0.001g;
e) ethanol (analytical grade, concentration of not less than 94%).
5.3.3.1.2 Test procedure
From each washing and drying of random sub-sample Weigh 5g of a sample, the quality of the sample according to the provisions to be amended. The sample was filtered wrap
After immersion into the inner pumping device, then under the already drying to constant weight of retort, solvent injection, will retort placed in water bath to evaporate the solvent rises, cold
Condensate reflux, refluxed for a total number of not less than 20 times for each test. After the extraction is complete, remove the sample, recovery of the solvent, and then placed in the retort
Within 105 ℃ ± 2 ℃ oven drying, drying to a constant weight.
5.3.3.1.3 ethanol extract content formula
According to equation (4) to calculate the ethanol extract content.
Ei = G2-G
( )1
G3 ×
100 (4)
Where.
Ei --- ethanol extract content,% (accurate to 0.01);
G2 --- quality after the extractive distillation flask in grams (g) (accurate to 0.001g);
G1 --- quality pre-extracted retort, in units of grams (g) (accurate to 0.001g);
G3 --- Sample oven dry mass, in grams (g) (accurate to 0.001g).
5.3.3.2 Ash
5.3.3.2.1 Equipment
a) high-temperature furnace;
b) a crucible, 50mL;
c) analytical balance, minimum scale value 0.001g.
5.3.3.2.2 Test procedure
From each washing and drying of sub-samples were randomly weighed an 10g sample, sample quality according to regulations to be amended. The sample is placed in oven
Within the crucible to constant weight in a gas lamp heating, try to remove the volatile substances, and then transferred to a high temperature crucible furnace at 750 ℃ ± 50 ℃ temperature
By degrees burning until all carbonaceous material until the entire ashing. Remove the crucible, placed in a desiccator, cooled to room temperature, and then weighed, said
To constant weight.
5.3.3.2.3 ash content is calculated
According to equation (5) Ash content calculation.
Ai =
(G5-G4)
G6 ×
100 (5)
Where.
Ai --- ash content,% (accurate to 0.01);
G4 --- crucible before burning mass in grams (g) (accurate to 0.001g);
After G5 --- burning crucible mass in grams (g) (accurate to 0.001g);
G6 --- Sample oven dry mass, in grams (g) (accurate to 0.01g).
5.3.3.3 vegetable matter and total alkaloids insoluble content
5.3.3.3.1 equipment and reagents
a) Crucible. 50mL, 30mL;
b) Analytical balance. minimum scale value 0.001g;
10% concentration;. c) Sodium hydroxide (NaOH) solution
d) high-temperature furnace.
5.3.3.3.2 Test procedure
Each has been washed from the dry sub-samples were randomly weighed 40g sample copy (to avoid any change in its mineral content), the sample mass
The amount required to be amended. The sample was immersed in 600mL boiling 10% sodium hydroxide solution, heating was stopped and stirring was continued for 3min. will
The solution was poured into a 40-mesh sieve filtration residue was washed repeatedly with water until the wash was neutral alkali solution. Sorting the residue with the eyes of each
Kinds of vegetable matter and other alkali insolubles. The residue on the inner surface of the dish, placed in 105 ℃ ± 2 ℃ oven bake 3h, and were called
Drying quality, and then the residue was said to have been placed in the constant weight of the crucible, and then burning Determination of ash content. Table 3 will be the correction factor
Calculations.
Table 3 different types of correction coefficient base insolubles
Alkali insoluble matter correction coefficient types Symbol
Seeds, crushed grass clippings F1 1.40
Spiral burr F2 1.20
Steelhead seeds and branches F3 1.03
Leather pieces or F4 2.00
Other alkali insolubles F5 1.05
5.3.3.3.3 vegetable matter, hard head seeds and branches, total alkaloids insoluble content is calculated
According to equation (6) to (8) computing vegetable matter, hard head seeds and branches, total alkaloids insoluble content.
Vi = 100Mi × Σ
i = 1
FiMj1-
Atæ
(6)
Hi = 100M × F3M3 1-
Atæ
(7)
Ti = 100Mi × Σ
i = 1
FiMj1-
Atæ
(8)
Where.
Vi --- vegetable matter content,% (accurate to 0.01);
Hi --- steelhead seeds and branches content,% (accurate to 0.01);
Ti --- Total Base insoluble content,% (accurate to 0.01);
Mi --- Sample oven dry mass, in grams (g) (accurate to 0.001g);
--- Fi different types alkali insoluble correction factor (i = 1,2,3,4,5);
Mj --- different kinds of alkali insolubles oven dry mass (j = 1,2,3,4,5), in grams (g) (accurate to 0.001g);
M --- recover alkali insolubles absolute dry sample mass, in grams (g) (accurate to 0.001g);
At --- recovered absolute dry mass total alkaloids total insolubles ash in grams (g) (accurate to 0.001g).
5.3.3.3.4 whole batch of vegetable matter base, hard head burr and branch-based formula
According to equation (9) and (10) to calculate the whole batch of vegetable matter base, hard head burr and the branch group.
Vmb = WbW ×
Σ PiV () i
ΣWi
(9)
H = WbW ×
Σ PiH () i
ΣWi
(10)
Where.
Vmb --- whole batch of vegetable matter base,% (accurate to 0.01);
Wb --- 5 sub-sample quality and the quality of the samples obtained by adding the remaining mass in grams (g) (accurate to 0.01g);
W --- lot sample sample weight in grams (g) (accurate to 0.01g);
Pi --- Wash each sub-sample of oven dry mass, in grams (g) (accurate to 0.01g);
Vi --- Wash each sub-sample of vegetable matter content,% (accurate to 0.01);
H --- whole batch steelhead grass and thorn branch group content,% (accurate to 0.01);
Hi --- Wash each sub-sample of grass hard head spines and branches content,% (accurate to 0.01);
Wi --- stick taken from the mixing drill core samples of each sub-sample of the mass in grams (g) (accurate to 0.01g).
5.3.3.3.5 kinetosome formula
According to formula (11), (12) to calculate gross base.
Bi = PiWi
100-Ei-Ai-T () i (11)
B = WbW ×
Σ BiW () i
ΣW
(12)
Where.
Bi --...
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