SN/T 0800.1-2016 PDF English

SN/T0800.1-2016 (SNT0800.1-2016): PDF in English

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 Figure A.4) is suitable for taking samples from liquid oil contained in tanks or oil tanks. It is divided into two parts. the upper and the lower. The top of the upper is open. The lower part is equipped with a heavier screw mechanism on the outside of the barrel. A lightweight self-weight valve is fixed at the bottom to ensure the stability of the sampling device from bottom to top. When the sampling barrel falls in the liquid grease, the pressure of the oil on the valve keeps the bottom open until the grease flows evenly into the barrel. When it stops falling, the bottom valve closes and the grease is drawn from the depth of the sampling barrel. 5.14 Tube sampler Applicable to sampling of paste grease. (See Figure A.5). It is a stainless steel device consisting of two concentric tubes of the same length and close together, one of which can rotate in the other tube. Each tube has a longitudinal opening. In a certain position, the tube is opened so that the oil flows in, and the tube is closed by turning the inner tube. 5.15 Sampling probe Sampling probe (see Figure A.6) is used for stearin sampling. It is made of stainless steel, with semi-circular or C-shaped cross section. When it is twisted and inserted into grease, it shall obtain a sample of oil. 5.16 Sampling tube Made of thick-walled glass tube or stainless steel, suitable for liquid grease sampling (see Figure A.7). the cabin. After extracting the first batch of samples, a small batch of samples shall be increased after every 1000t of loading and unloading. When it is less than 1000t, it shall be calculated as 1000t. Each small batch of samples shall be taken from at least 50 points so that the total amount of small batches of original samples is not less than 8kg. b) River steamer or small barge For small river steamer or barge with loading number is 100t ~ 500t, the sampling point setting shall be according to 7.1.1.1.2. Extract a small batch of initial samples per loading and unloading about 500t. Each small batch sample is drawn from at least 20 points. Total amount is not less than 8kg. When the loading quantity is less than 500t, the loading of different river steamer or small barges of the same variety and grade can be used as a sampling batch. After combining the individual samples at each sampling point, they are mixed into a small batch of initial samples with a total amount of not less than 8kg. 7.1.1.1.5 Silo In general, no manual sampling is used in the silo. For silos with mechanize.......
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