FZ/T 41001-2014Mulberry spun silk material (English PDF)

4.1 Long spit

4.1.1 distinguish between the head and tail, neat lines was uniform bundles state, stiff bar, caking hard strip, lining less pupa cocoon.

1m and the length of each beam 4.1.2 above, mass (700 ± 100) g.

4.1.3 long spit grading each lot, the classification provisions in Table 1 and Table 2.

Table 1 long spit grading regulations --- the main test items

The main test items

grade

One two three four

Finishing Profiles

Lines neat uniform, head and tail points Qing, head of small soft lumps Neat lines, head and tail basic Distinguish, head of small lumps Slightly irregular lines irregular lines Save practicing rate /% <= 24.0 26.0 27.0 28.0 Color white, shiny white, shiny grayish yellow whole bunch of poor local grayish yellow Article stiff rate /% <= 0.0 0.0 2.0 4.0 40mm and above hybrid fiber Victoria/(root/bundle) <=

Table 2 long spit grading regulations --- benefit test items

Test items subsidy

Attached grade

I II III IV

Caking hard strip/(pcs/bundle) <= 4 7 10 13 Pupal cocoon lining/(pcs/bundle) <= 2 5 8 11

4.1.4 The basic level of assessment 4.1.4.1 based on the minimum "before finishing" "color" "practice Save Rate" "Article stiff rate" "miscellaneous fibers" five major items subject to inspection results one indeed Set a basic level.

4.1.4.2 The main test items in any of the test results below the minimum level, compared with substandard level.

4.1.5 Downgrade provisions subsidy inspection

4.1.5.1 If the test project grants (Article caking hard liner pupae and cocoons) in any of the test results one level below basic level two, or two of Test results below the basic level one stage, on the basic level has been assessed along the lower level.

4.1.5.2 If the test project test results subsidy to any one of the below basic level three or above, or less than two test results the basic level two or above, on the basic level has been assessed along the lower levels.

4.1.5.3 If the test project test results subsidy to any one of the lowest level more than doubled over, all reduced to substandard levels.

4.2 Spit

4.2.1 lines neat uniform, no stiff strip, no twist strips, caking hard strip, lining less pupa cocoon.

4.2.2 Quality spit in each bundle of bars per bundle (1000 ± 100) g.

4.2.3 spit lot for the classification, grading its provisions are shown in Table 3 and Table 4.

Table 3 spit grading regulations --- the main test items

The main test items

grade

One two three four

Finishing Profiles

Lines neat uniform,

Soft touch, no twist strips Neat lines, feel soft, There are bars twist 5 Inspection Rules

5.1 Batch

Long spit, spit bars, according to the same stagnation head reeling models, the same level group batches; cocoon coat, according to the same under cocoon stage, the same level group batches. Net weight of each batch 500kg ~ 600kg, 600kg calculated over two batches.

5.2 Sampling

Silk raw number of samples specified in Table 9.

The number of samples specified in Table 9 category Long spit, spit strip Beam/batch Lag head Zhang/batch Cocoon coat Zhang/batch Under cocoon kg/batch Number 5552

5.3 Sampling Method

5.3.1 each batch of random 5 pack.

5.3.2 spit, spit long, slow head, cocoon coat 1 per pack pumping beam (photos), which face each draw a bottom beam (photos), the central pumping beam 3 (photos), a total of five bundles (Photos).

5.3.3 Central 2 beam (photos) for testing the amount of the public, practicing reducing rate, oil content, and the remaining three beams (photos) for visual inspection.

5.3.4 Under cocoon draw about 400g per pack to mix randomly selected (100 ± 5) g for testing moisture regain, take 100 (excluding other cocoon class) cocoon Layer rate test; take 1kg unclear for classification and impurity rate test.

6.1.1 Equipment and Tools

6.1.1.1 Electronic scales. scale value <=1g.

6.1.1.2 Balance. division value <=0.01g.

6.1.1.3 with the balance of the oven. Balance. division value <=0.01g.

6.1.2 Weight Test

Take each strip spit, spit long, slow head, cocoon clothing 3 bundle (photos), electronic weighing scales, to calculate the 3 beam (photos) averages, calculated results are accurate to one decimal After a point.

6.1.3 the amount of public inspection 6.1.3.1 respectively extracted beam 2 (photos) from each sample in a sample, each quality (100 ± 5) g.

6.1.3.2 The extracted sample weighed immediately come to "wet weight" on the balance.

6.1.3.3 The weighed sample in parts of the unit were loosely placed in the basket bake at a temperature (105 ~ 110) °C of drying to constant weight (interval 10min weighing not more than twice the difference 50mg), returns "dry weight."

6.1.3.4 Found Regain according to formula (1) calculation, results are accurate to one decimal place.

m-m0

100% (1)

Where.

W --- Found moisture regain,%;

m --- total wet weight of sample in grams (g);

m0 --- total dry weight of sample in grams (g).

6.1.3.5 Public amount according to formula (2) calculation results accurate to two decimal places.

mk = mj ×

100 Wk

100 W

Where.

mk --- the amount of the public, in kilograms (kg);

mj --- net weight, in kilograms (kg);

Wk --- moisture regain,%;

W --- Found moisture regain%.

6.2 Visual inspection

6.2.1 Equipment and Tools

6.2.1.1 Electronic scales. scale value <=1g.

6.2.1.2 Balance. division value <=0.01g.

6.2.1.3 scissors.

6.2.1.4 Steel tape. 2m.

6.2.1.5 Test station. test sample flat on the stage, conducted in natural light.

6.2.2 Long spit length test

In both ends of the largest parts of the head and tail of each beam spit as long range measurement, beam by steel tape measure, calculate the average of 3 beam, fine results After correct to one decimal place.

6.2.3 Before finishing, color inspection

Eyes by using beam (photos) assessment, 2 beam (photos) above similar assessment results as the test results.

6.2.4 Article stiff rate, stiff stiff block rate test strips

6.2.4.1 strand by strand (photos) will strip stiff, stiff stiff block strip cut, with the balance weighing, calculating 3 beam (photos) average.

Article 6.2.4.2 stiff rate, stiff stiff block strip ratio according to formula (3) calculation, results are accurate to one decimal place.

100% (3)

Where.

J --- stiff Article (Article stiff stiff block) rate,% ma --- stiff Article (Article stiff stiff block) the total mass in grams (g);

mb --- 3 beam (photos) of the total mass of the sample in grams (g).

6.2.5 Miscellaneous Fiber Inspection

Picked each bundle (photos) miscellaneous number of fibers in the sample is calculated 3 beam (photos) average the results to the nearest integer.

6.2.6 Caking hard strip, lining pupa cocoon, pupa and pupa lining inspection

Culling (Zhang) sample of a few per bundle (more than half of a pupa count), calculated beam 3 (photos) average the results to the nearest integer.

6.2.7 Impurity rate test

6.2.7.1 The cocoon coat, picked out under the cocoon, with weighing scales.

6.2.7.2 cocoon coat impurity rate according to equation (4) calculation, results accurate to two decimal places.

100% (4)

Where.

C --- cocoon coat impurity rate,%;

mr --- impurities total mass in grams (g);

mt --- 3 Zhang mass of the sample in grams (g).

6.2.7.3 Under cocoon impurity rate according to equation (5) calculation results accurate to two decimal places.

1000 × 100%

Where.

R --- By cocoon impurity rate,%;

mr --- impurities total mass in grams (g).

6.2.8 Cocoon layer rate test

6.2.8.1 Cocoon said sample mass, or "cocoon weight."

6.2.8.2 The sample was quickly cut sectional cocoon, called mass cocoon, the "cocoon shell weight." 6.2.8.3 cocoon shell ratio according to equation (6) calculation results accurate to two decimal places.

100% (6)

Where.

S --- cocoon layer rate,%;

mc --- cocoon shell weight in grams (g);

md --- cocoon weight in grams (g).

6.2.9 Inspection classification is unclear

6.2.9.1 In the sample selected from the cocoon stage cocoon other cocoon removed and weighed.

6.2.9.2 unclear classification according to formula (7) calculation results accurate to two decimal places.

1000 × 100%

Where.

F --- classification is unclear,%;

me --- other cocoon mass, in grams (g).

6.3 Internal Quality Inspection

6.3.1 Practice test rate reduction

6.3.1.1 Equipment and tools

6.3.1.1.1 analytical balance. division value <=0.01g.

6.3.1.1.2 with the balance of the oven. Balance. division value <=0.01g.

6.3.1.1.3 beaker. 2L.

6.3.1.1.4 furnace. 1kW.

6.3.1.1.5 set the clock.

6.3.1.1.6 ordinary glass thermometer. minimum scale value 1 °C.

6.3.1.2 Reagents

6.3.1.2.1 fatty acid containing 60% industrial neutral soap.

6.3.1.2.2 anhydrous sodium carbonate (Na2CO3).

6.3.1.2.3 distilled water.

6.3.1.3 Test conditions

Test conditions are shown in Table 10.

Table 10 rate reduction practice test test conditions

The first sequential quadratic formula Industrial neutral soap/(g/L) 5 -Anhydrous sodium carbonate (Na2CO3)/(g/L) 0.5 1 Distilled water distilled water distilled water Bath ratio 1.100 1.100 Temperature/°C 98 ~ 100 100 Time/min 30 20

6.3.1.4 Test Procedure

6.3.1.4.1 Take Two (10 ± 1) g sample (including head and tail), placed in an oven heated to (120 ± 3) °C temperature drying to constant weight (10min interval Weighing twice the difference does not exceed 50mg), namely "dry weight before practice." 6.3.1.4.2 according to test conditions specified in Table 10 of the samples was put into practice after scouring solution twice with distilled water (65 ± 5) °C full wash Polyester, squeezed, then the sample is placed within the oven temperature to (120 ± 3) °C temperature drying to constant weight (10min interval weighing not more than twice the difference 50mg), namely "dry weight after practice."

6.3.1.4.3 The test results calculated as follows.

a) the rate of reduction to practice according to equation (8) Calculated.

mz-mh

100% (8)

Where.

E --- practice reduction rate,%;

mz --- practice before the dry weight in grams (g);

After practicing mh --- dry weight in grams (g).

b) calculate the arithmetic average of 2 parts of the sample rate reduction to practice, the results after taking one decimal place.

6.3.2 Oil Content Test

6.3.2.1 Apparatus, instruments and reagents

6.3.2.1.1 with the balance of the oven. Balance. division value <=0.01g.

6.3.2.1.2 analytical balance, dividing the value <=0.0001g.

6.3.2.1.3 constant temperature water bath, 40 °C ~ 100 °C.

6.3.2.1.4 Soxhlet extractor, accepted the flask.

6.3.2.1.5 dryer, equipped with color gel.

6.3.2.1.6 weighing bottle. 150mL.

6.3.2.1.7 qualitative filter paper.

6.3.2.1.8 ether (chemically pure or analytical).

6.3.2.2 Sample

Sample taken 2 copies, each (5 ± 0.5) g.

6.3.2.3 Test Procedure

6.3.2.3.1 The receiving flask weighing bottle and placed (120 ± 3) °C in the drying oven to constant weight, weighed and recorded quality.

6.3.2.3.2 The 2 parts of the sample with qualitative filter paper wrap, size, elastic fit.

6.3.2.3.3 mounted on a heated water bath Soxhlet extractor connection cooling pipe, connected to the cooling water, heating water bath.

6.3.2.3.4 2 parts coated with qualitative filter paper samples were dipped into a Soxhlet extractor pumping device inside. Then poured into ethyl ether, immerse test Siphon-like and over the produce reflux condenser connected.

6.3.2.3.5 adjust the water bath temperature, the receiving flask micro-boiling ether, maintained at reflux for 12 times per hour, a total reflux 2h.

6.3.2.3.6 reflux is completed, remove the condenser, remove the sample drawn from the leaching vessel, squeezed solvent removed paper, into the weighing bottle. Draw a line on Condenser, recovery ether.

6.3.2.3.7 be volatile ether after substantially exhausted, it will be equipped with a sample weighing bottles and flasks on receiving (120 ± 3) °C in the oven drying to constant weight, Remove weighing vessel and receiving flask was quickly placed in the dryer, cooled to room temperature, weighed and recorded quality.

Note. The sample constant weight was known for about 120min, continuous weighing time interval of about 25min.

6.3.2.3.8 The test results calculated as follows.

a) a sample oil content according to formula (9) Calculated.

ma1

ma1 ma2 ×

100% (9)

Where.

Q --- oil content of the sample,%;

Dry mass ma1 --- fat in grams (g);

After ma2 --- skimmed dry mass of the sample, in grams (g).

b) calculate the arithmetic average of 2 parts oil content of the sample, the results after taking one decimal place.