GB 1523-2013Sheep wool (English PDF)

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 × Sigma i =

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

4.5 Coarse hair chamber

0.0 Dry dead hair

0.3 Dry dead hair

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.

5.1.1 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 °C ~ 45 °C), 1min; Second. washing (water temperature of 52 °C ± 3 °C), 3min; Third. rinsing (water temperature 35 °C ~ 45 °C), 1.5min; Fourth. washing (water temperature of 52 °C ± 3 °C), 3min; Fifth. rinsing (water temperature 35 °C ~ 45 °C), 1.5min; Sixth. rinsing (water temperature 35 °C ~ 45 °C), 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 °C ± 2 °C 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

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 °C ± 50 °C 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 °C ± 2 °C 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

20.5 YM/

22.5 YM/23.5 <=15.0

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/

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