SN/T 0800.1-2016 English PDF (SNT0800.1-2016)

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SN/T 0800.1-2016: Inspection of cereals, oils and feedstuffs for import and export - Methods of sampling and preparation of samples
SN/T 0800.1-2016
SN
ENTRY-EXIT INSPECTION AND QUARANTINE INDUSTRY
STANDARD OF THE PEOPLE’S REPUBLIC OF CHINA
Replacing SN/T 0800.1-1999
Inspection of cereals, oils and feedstuffs for import and
export - Methods of sampling and preparation of samples
ISSUED ON. MARCH 9, 2016
IMPLEMENTED ON. OCTOBER 1, 2016
Issued by. General Administration of Quality Supervision, Inspection and
Quarantine of the People's Republic of China
Table of Contents
Foreword ... 3 
1 Scope ... 6 
2 Normative references ... 6 
3 Terms and definitions ... 7 
4 General ... 7 
5 Sampling and sample preparation tools and devices ... 7 
6 Sampling time, site ... 11 
7 Sampling methods ... 11 
8 Preparation of laboratory sample ... 21 
9 Number of sample ... 23 
10 Sample holding, identification and inspection ... 23 
11 Sampling report ... 24 
12 Specimen preparation ... 24 
Annex A (informative) Sampling tools ... 27 
Annex B (normative) Sample amount of inspection items of cereals, oils and
feedstuffs ... 30 
Foreword
SN/T 0800 consists of the following 20 parts.
- Part 1. Inspection of cereals, oils and feedstuffs for import and export -
Methods of sampling and preparation of samples;
- Part 2. Inspection of cereals, oils and feedstuffs for import and export -
Method for the determination of crude fat;
- Part 3. Inspection of cereals, oils and feedstuffs for import and export -
Method for the determination of crude protein;
- Part 4. Inspection of cereals, oils and feedstuffs for import and export -
Method for the determination of urease activity;
- Part 5. Inspection of cereals, oils and feedstuffs for import and export -
Method for the determination of starch content;
- Part 6. Inspection of cereals, oils and feedstuffs for import and export -
Method for the determination of ash;
- Part 7. Inspection of cereals, oils and feedstuffs for import and export -
Method for the inspection of imperfect grains;
- Part 8. Inspection of cereals, oils and feedstuffs for import and export -
Method for the determination of crude fibre content;
- Part 9. Inspection of cereals, oils and feedstuffs for import and export -
Method for the determination of tannin content;
- Part 10. Inspection of cereals, oils and feedstuffs for import and export -
Method for the determination of water absorption;
- Part 11. Inspection of cereals, oils and feedstuffs for import and export -
Method for the determination of salt contents;
- Part 12. Inspection of cereals, oils and feedstuffs for import and export -
Method for the inspection of grain composition including whole kernels
and broken rice;
- Part 13. Inspection of cereals, oils and feedstuffs for import and export -
Method for the inspection of milling degree;
- Part 14. Inspection of cereals, oils and feedstuffs for import and export -
Method for the determination of germinative energy and germination;
- Part 15. Inspection of cereals, oils and feedstuffs for import and export -
Inspection of cereals, oils and feedstuffs for import and
export - Methods of sampling and preparation of samples
1 Scope
This Part of SN/T 0800 specifies the methods of sampling and preparation of
samples of inspection of cereals, oils and feedstuffs for import and export.
This Part is applicable to the sampling and sample preparation for inspection of
cereals, oils and feedstuffs for import and export.
2 Normative references
The following referenced documents are indispensable for the application of
this document. For dated references, only the edition cited applies. For undated
references, the latest edition of the referenced document (including any
amendments) applies.
GB/T 5494, Inspection of grain and oils - Determination of foreign matter and
unsound kernels of grain and oilseeds
GB/T 5502, Inspection of grain and oils - Determination of milling degree of
rice
GB/T 5524, Animal and vegetable fats and oils - Sampling
GB/T 10361, Wheat rye and respective flours durum wheat and durum wheat
semolina - Determination of the falling number according to Hagberg-Perten
GB/T 15687, Animal and vegetable fats and oils - Preparation of test sample
SN/T 0798, Inspection of cereals oils and feedstuffs for import and export -
Terminology for inspection
SN/T 0799, Inspection of cereals oils and feedstuffs for import and export -
General rules for the inspection
SN/T 0803.5, Oil bearing materials for import and export - Method for the
inspection of grade and uniformity
SN/T 2504, Technique procedures of quality inspection and quarantine for
imported and exported cereals
to samplings of beans, corns, feeds;
b) total length is 50cm, slot length is 40cm, slot width is 0.8cm ~ 1.5cm, outer
diameter is 1.6cm ~ 2.0cm, tip is about 4.0cm, solid cone; it is applicable
to samplings of small, medium grains, oilseeds, feeds;
c) total length is 55cm, slot length is about 35cm, slot width is 0.6cm ~ 0.7cm,
the maximum outer diameter is about 1cm, head-tip-shaped; it is
applicable to sampling of powder cargo.
5.2 Double-sleeve sampler and slot receiver
Applicable to sampling of bulk static cargo.
According to the actual loading transport tools, the size of the cargo, the storage
of cargo, use double sleeve sampler of different specifications, length. The
commonly used one. total length is 110cm, handle length is 15cm, cone length
is 6.5cm, outer diameter of outer tube is 2.6cm, inner diameter is 2.0cm, with
four outlets with each outlet of 20cm×1.8cm. There are also other double-sleeve
standard samplers with total lengths of 250cm, 300cm, etc.
The slot receiver is made of tin or aluminum skin, of which the length is 100cm,
semi-cylindrical, opening width is 10cm, used to collect the sample collected by
double-sleeve sampler. Or it can use canvas of sufficient length to collect the
sample.
5.3 Sampling shovel
The shovel length is about 13cm, the width is about 8cm, the side height is
about 4cm, the handle length is about 8cm. See Figure A.1 of Annex A.
5.4 Automatic mechanical sampling device
Applicable to dynamic cargo sampling. The device mainly consists of four parts.
a) shunt mechanical sampler;
b) rotary divider;
c) gravity divider;
d) rotary-table sampler.
The specific operation is carried out according to the specifications of each
sampling device.
5.5 Deep-layer sampler
A semi-automatic sampling device that mainly consists of several connectable
cylinder. A momentary pause between the opening of the inlet and outlet valves
is to ensure that the sample first enters the bottom of the cylinder and causes
a slight increase in the internal pressure of the cylinder to prevent the sample
from entering the top when the top valve is opened.
5.12 Simple counterweight sampling tank
The simple counterweight sampling tank (see Figure A.3) is suitable for
sampling at different depths in a variety of storage tank. It consists of a stainless
steel cylinder (capacity of approximately 500mL), a counterweight with a
separate bottom and a tapered barrel neck. The metal ring fixed on both sides
of the cone neck has a ring at its highest point. The rope passes through the
ring and is tied to the cork of the conical barrel neck. Empty sampling tank with
cork drops to the specified depth of liquid grease. Urgently pull the rope and
unplug the cork, the tank shall be full of samples.
5.13 Sampling barrel with bottom valve
The sampling barrel with foot valve (see F...