GB/T 10288-2016 English PDF (GBT10288-2016)

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GB/T 10288-2016: [Including 2020XG1] Test method for down and feather
GB/T 10288-2016
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 59.040
B 45
Replacing GB/T 10288-2003
Test method for down and feather
ISSUED ON: DECEMBER 30, 2016
IMPLEMENTED ON: JULY 01, 2017
Issued by: General Administration of Quality Supervision, Inspection and
Quarantine of PRC;
Standardization Administration of PRC.
Table of Contents
Foreword ... 3 
1 Scope ... 5 
2 Normative references ... 5 
3 Terms and definitions ... 5 
4 Sampling and specimen treatment ... 6 
5 Inspection... 8 
6 Test report ... 25 
Test method for down and feather
1 Scope
This standard specifies the terms and definitions, sampling and specimen
treatment, inspection and test reports of down and feather inspection,.
This standard applies to the inspection of down and feathers and the filling
materials of their products.
2 Normative references
The following documents are essential to the application of this document. For
the dated documents, only the versions with the dates indicated are applicable
to this document; for the undated documents, only the latest version (including
all the amendments) is applicable to this standard.
GB/T 601 Chemical reagent - Preparations of standard volumetric solutions
GB/T 6529 Textiles - Standard atmospheres for conditioning and testing
GB/T 6682 Water for analytical laboratory use - Specification and test
methods
GB/T 8170 Rules of rounding off for numerical values and expression and
judgement of limiting values
GB/T 17685 Down and feather
GSB 16-2763 Standard sample photo of down and feather
3 Terms and definitions
The terms and definitions as defined in GB/T 17685, as well as the following
terms and definitions, apply to this document.
3.1
Moisture content
The percentage of water content in down and feathers TO the original weight
of down and feathers.
as down bedding, which has a nominal down filling capacity of 500 g and above
for a single sample, samples shall be taken from at least three parts. For other
down products, all fillings shall be taken, as test samples.
4.3.3 Sampling container: The test specimen for moisture content/moisture
regain shall be placed in a clean, intact, airtight container. The specimens for
other test items shall be placed in a normal sample bag.
4.4 Test atmospheric conditions and sample balance
Component analysis, type identification, filling power test shall be carried out,
under constant temperature and humidity conditions. The atmospheric
conditions, which are used for the test, shall be carried out in accordance with
the provisions of GB/T 6529. The samples shall be balanced for 24 hours and
above. Other inspection items can be carried out, at room temperature OR
under actual conditions.
4.5 Specimen treatment
4.5.1 Instruments and equipment
Mixing tank, length (150 cm ~ 200 cm) × width (80 cm ~ 100 cm), depth (20 cm
~ 30 cm), height from the bottom to the ground (55 cm ~ 65 cm). It is made of
antistatic materials, such as wood or stainless steel.
4.5.2 Uniformity and reduction of samples
4.5.2.1 Put all the samples in the sample mixing tank. Adopt the method of
“mixing first and then spreading”, to first evenly spread the samples by hand.
The method of down spreading is lifting from left and falling to right, AND lifting
from right and falling to left, to flatly spread the down alternatively in layers.
Then use the four-corner halving method, to repeatedly reduce it to 100 g. In
the middle circular sampling area from the center to the edge of the sample,
select 5 evenly distributed points, to use fingers to clamp the sample. During
sampling, pay attention to take sample from top to bottom. If it is found that the
sample, after the reduction, is still uneven, it is necessary to repeatedly reduce
the sample, to the specified specimen mass.
4.5.2.2 According to the designated inspection items, according to the
provisions of Table 2, respectively weigh the specimen of the corresponding
mass.
4.5.2.3 The remaining samples are retained for reference.
4.5.3 The number of specimens required for each inspection item
The number of specimens, which are required for each inspection item, shall
5.1.1.5 Tweezers.
5.1.2 Requirements
5.1.2.1 The component analysis includes the separation of down, down fiber,
feather fiber, waterfowl feathers, waterfowl damaged feather, landfowl feather,
long feather, quill feather, residues.
5.1.2.2 The component analysis is carried out in two steps:
- Preliminary sorting, it is necessary to separate the mixture, which contains
down/down fiber/feather fiber, waterfowl feathers, waterfowl damaged
feather, landfowl feather (including landfowl damaged feather and landfowl
fiber), long feather pieces, quill feather, residues;
- Second sorting, separate the down, down fiber, feather fiber from the
mixture, which contains down/down fiber/feather fiber. If there are still other
components, such as waterfowl feathers and residues, during the second
sorting, it needs to be further separated.
If the sample is a pure feather, the second sorting is not required.
5.1.2.3 The specimens shall be classified and separated, according to the
requirements of GSB 16-2763.
5.1.3 Preparation of specimen
According to the requirements of Table 2, weigh three sets of specimens. Place
them under the atmospheric conditions, which are specified in 4.4. Accurately
weigh them after the humidity conditioning for 24 hours. Record the initial mass,
accurate to 0.0001 g.
5.1.4 Preliminary sorting
5.1.4.1 Operation method of preliminary sorting
Place the test specimen and seven beakers in the sorting box. Use tweezers to
pick out all kinds of feathers. Then use thumb and index finger, to flick the
feather, to remove other attached components. Respectively place the seven
components of complete waterfowl feathers, waterfowl damaged feather,
landfowl feather (including landfowl damaged feather and landfowl feather fiber),
long feather, quill feather, a mixture of down/down fiber/feather fiber, residues,
etc., in different containers.
5.1.4.2 Calculation of preliminary sorting
After sorting, weigh and record the mass of the contents in each container,
accurate to 0.0001 g.
Add the contents of the seven containers together, to get the total mass (m1)
after sorting.
Taking the waterfowl feather content in formula (1) as an example, respectively
calculate the percentages of the various components, which are obtained in the
preliminary sorting, to the total mass after sorting; the calculation result is
expressed in %, which is rounded to 0.1, according to GB/T 8170:
Waterfowl feather content (%) = (mF/m1) x 100 …………………. (1)
Where:
mF - The mass of waterfowl feathers, in grams (g);
m1 - The total mass of various components, which are obtained after
preliminary sorting, in grams (g).
5.1.5 Sorting and calculation of colored down and feather
5.1.5.1 Sorting method of colored down and feather
After the preliminary sorting is completed, the colored down and feather
(including colored down, down fiber, feather fiber, waterfowl feathers, waterfowl
damaged feather, landfowl feather, landfowl damaged feather, fiber), in each
component, are sorted out together. Weigh it (m3), accurate to 0.0001 g. Then
put the colored down and feather components back into the original
components.
5.1.5.2 Calculation of colored down and feather
Calculate the content of colore...