HOME   Cart(0)   Quotation   About-Us Tax PDFs Standard-List Powered by Google www.ChineseStandard.net Database: 189760 (18 Jan 2025)

GB/T 5494-2019 English PDF (GB/T 5494-2008, GB/T 5494-1985)

GB/T 5494-2019_English: PDF (GB/T5494-2019)
Standard IDContents [version]USDSTEP2[PDF] delivered inStandard Title (Description)StatusPDF
GB/T 5494-2019English130 Add to Cart 0--9 seconds. Auto-delivery Inspection of grain and oils -- Determination of foreign matter and unsound kernels of grain and oilseeds Valid GB/T 5494-2019
GB/T 5494-2008English90 Add to Cart 0--9 seconds. Auto-delivery Inspection of grain and oils -- Determination of foreign matter and unsound kernels of grain and oilseeds Obsolete GB/T 5494-2008
GB/T 5494-1985English199 Add to Cart 2 days [Need to translate] Inspection of grain and oilseeds--Methods for determination of foreign matter and unsound kernels Obsolete GB/T 5494-1985


BASIC DATA
Standard ID GB/T 5494-2019 (GB/T5494-2019)
Description (Translated English) Inspection of grain and oils -- Determination of foreign matter and unsound kernels of grain and oilseeds
Sector / Industry National Standard (Recommended)
Classification of Chinese Standard X04
Classification of International Standard 67.040
Word Count Estimation 10,124
Date of Issue 2019-05-10
Date of Implementation 2019-12-01
Drafting Organization Henan Provincial Grain, Oil and Feed Product Quality Supervision and Inspection Center, National Grain Administration Standard Quality Center, Henan Provincial Grain Science Research Institute Co., Ltd., Zhengzhou Grain Science Research Institute, Liaoning Provincial Grain Reserve Management Co., Ltd., National Grain Wuhan Science Research and Design Institute Co., Ltd.
Administrative Organization National Grain and Oil Standardization Technical Committee (SAC/TC 270)
Proposing organization State Administration of Grain and Material Reserves
Issuing agency(ies) State Administration for Market Regulation, China National Standardization Administration

BASIC DATA
Standard ID GB/T 5494-2008 (GB/T5494-2008)
Description (Translated English) Inspection of grain and oils. Determination of foreign matter and unsound kernels of grain and oilseeds
Sector / Industry National Standard (Recommended)
Classification of Chinese Standard X04
Classification of International Standard 67.040
Word Count Estimation 7,788
Date of Issue 2008-11-04
Date of Implementation 2009-01-20
Older Standard (superseded by this standard) GB/T 5494-1985
Quoted Standard GB 5491; GB/T 22505
Drafting Organization Henan feed grain and oil product quality supervision and inspection station
Administrative Organization National Standardization Technical Committee Agri
Regulation (derived from) National Standard Approval Announcement 2008 No.18 (Total No.131)
Proposing organization National Food Authority
Issuing agency(ies) Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China; Standardization Administration of China
Summary This standard specifies the grain, impurities in oil, imperfect grain content testing instruments and appliances, lighting requirements, method of operation, , Sample Preparation results calculation. This standard applies to food, impurities in oil, determination imperfect grain content.

BASIC DATA
Standard ID GB/T 5494-1985 (GB/T5494-1985)
Description (Translated English) Inspection of grain and oilseeds--Methods for determination of foreign matter and unsound kernels
Sector / Industry National Standard (Recommended)
Classification of Chinese Standard X10
Classification of International Standard 67.04
Word Count Estimation 4,490
Date of Issue 1985/11/2
Date of Implementation 1986/7/1
Regulation (derived from) Announcement of Newly Approved National Standards No. 18, 2008 (No. 131 overall)
Proposing organization Ministry of Commerce of the People Republic of China
Issuing agency(ies) National Bureau of Standards


GB/T 5494-2019 NATIONAL STANDARD OF THE PEOPLE’S REPUBLIC OF CHINA ICS 67.040 X 04 Replacing GB/T 5494-2008 Inspection of grain and oils - Determination of foreign matter and unsound kernels of grain and oilseeds ISSUED ON: MAY 10, 2019 IMPLEMENTED ON: DECEMBER 01, 2019 Issued by: State Administration for Market Regulation; Standardization Administration of the PRC. Table of Contents Foreword ... 3  1 Scope ... 4  2 Normative references ... 4  3 Instruments and utensils ... 4  4 Lighting requirements ... 5  5 Sample preparation ... 5  6 Operation steps ... 5  7 Result calculation ... 7  Appendix A (Normative) Specification of sieve layer used for sieving samples ... 11  Foreword This Standard is drafted in accordance with the rules given in GB/T 1.1-2009. This Standard replaces GB/T 5494-2008 “Inspection of grain and oils - Determination of foreign matter and unsound kernels of grain and oilseeds”. As compared with GB/T 5494-2008, the main technical changes of this Standard are as follows: - Modify the table for provisions on inspection sample mass (see Table 1; Table 1 of the 2008 edition); - ADD the operation steps and calculation formula for the inspection of millet grain in millet (see 6.2.1, 7.2.3); - Modify the calculation formula for unsound kernels of rice (see 7.2.4; 7.2.6 of the 2008 edition); - Delete the operation steps and calculation formulas for inspection of shelled barnyard millet and rice grain (see 6.2.2, 7.2.4, 7.2.5 of the 2008 edition); - ADD provisions for specification of sieve layer during operation (see Appendix A). This Standard was proposed by National Food and Strategic Reserves Administration. This Standard shall be under the jurisdiction of National Technical Committee 270 on Grain and Oils of Standardization Administration of China (SAC/TC 270). Drafting organizations of this Standard: Henan Grain, Oil and Feed Products Quality Supervision and Inspection Center, Standards and Quality Center of the State Administration of Grain, Henan Food Science Research Institute Co., Ltd., Zhengzhou Food Science Institute, Liaoning Grain Reserves Co., Ltd., China Grain Wuhan Scientific Research & Design Institute, Co., Ltd. Main drafters of this Standard: Yin Chenghua, Sun Weiwei, Li Min, Zhang Yan, Huang Changjun, Cui Yang, Hu Jipeng, Wang Lili, Chen Yin, Niu Mengyu. The previous editions of the standard replaced by this Standard were released as follows: - GB/T 5494-1985, GB/T 5494-2008. Inspection of grain and oils - Determination of foreign matter and unsound kernels of grain and oilseeds 1 Scope This Standard specifies the instruments and utensils, lighting requirements, sample preparation, operation steps, and result calculation, etc. for the determination of content of foreign matter and unsound kernels of grain and oilseeds. This Standard applies to the determination of content of foreign matter and unsound kernels of grain and oilseeds. 2 Normative references The following documents are indispensable for the application of this document. For the dated references, only the editions with the dates indicated are applicable to this document. For the undated references, the latest edition (including all the amendments) are applicable to this document. GB/T 5491 Inspection of grain and oilseeds - Methods for sampling and sample reduction GB/T 22505 Inspection of grain and oils - Sensory analysis environment - Lighting 3 Instruments and utensils 3.1 Balance: Sensitivity is 0.01 g, 0.1 g, 1 g. 3.2 Grain sieve. 3.3 Electromagnetic sieve shaker. 3.4 Sample splitter or sample splitting plate. 3.5 Analysis tray, tweezers, etc. The sieve automatically sieves to left and to right for 1 min respectively (110 r/min~120 r/min). After the sieve is stopped for a while, the oversize of the upper sieve and the undersize of the lower sieve are respectively poured into the analysis tray. The particles stuck in the middle of sieve pore belong to oversize. 6.1.1.2 Hand-sieve method: According to the method in 6.1.1.1, SET the sieve layer; POUR the sample into it; COVER it with a sieve cover. Then PLACE the sieve on a glass plate or a smooth tabletop; USE both hands, at a speed of 110 times/min~120 times/min, to sieve for 1 min in a clockwise direction and a counter-clockwise direction respectively. The sieving range is controlled at sieve diameter enlarged by 8 cm~10 cm. The operation after sieving is the same as that in 6.1.1.1. 6.1.2 Inspection of foreign matter of large sample From the average sample, according to the provisions of Clause 5, SPLIT and take the sample to the large sample mass (m) specified in Table 1, accurate to 1 g. According to the sieving method specified in 6.1.1, the sieving is carried out twice (Extra-large-grain and oil are sieved four times). Then the large foreign matters on the upper sieve (The peeling grain kernel shell belongs to foreign matter) are picked up and combined with the undersize of the lower sieve, weighed (m1), accurate to 0.01 g. 6.1.3 Inspection of foreign matter of small sample From the samples which have been inspected for foreign matter of large sample, according to the provisions of Clause 5, SPLIT and take the sample to the small sample mass (m2) specified in Table 1. When the small sample mass is not more than 100 g, it is accurate to 0.01 g. When the small sample mass is more than 100 g, it is accurate to 0.1 g. POUR it into the analysis tray; according to the mass standards, PICK up foreign matters and weigh (m3), accurate to 0.01 g. 6.1.4 Mineral inspection From the foreign matters of small sample picked, PICK up the minerals and weigh (m4), accurate to 0.01 g. 6.1.5 Inspection of unsound kernels While inspecting the foreign matter of small sample, according to the mass standards, PICK up unsound kernels and weigh (m5), accurate to 0.01 g. 6.2 Inspection of foreign matter and unsound kernels of rice 6.2.1 Inspection of foreign matter Where: m5 - Mass of unsound kernels, in grams (g); m2 - Small sample mass, in grams (g). Under repeated conditions, the absolute difference between the two independent determination results obtained: For large-grain and extra-large- grain, it shall not exceed 1.0%; for small and medium-grain, it shall not exceed 0.5%. The average is obtained as the test result. The test result is retained to one decimal place. 7.2 Calculation of inspection results of foreign matter and unsound kernels of rice 7.2.1 The mineral or inorganic foreign matter content (w6) is expressed in mass fraction (%) and is calculated according to formula (6): Where: m2′- Mineral or inorganic foreign matter mass, in grams (g); m′ - Sample mass, in grams (g). Under repeated conditions, the absolute difference between the two independent determination results obtained shall not exceed 0.005%. The average is obtained as the test result. The test result is retained to two decimal places. 7.2.2 The total amount of foreign matter (w7) is expressed in mass fraction (%) and is calculated according to formula (7): Where: m1′- Mass of rice bran powder, in grams (g); m2′- Mineral or inorganic foreign matter mass, in grams (g); m3′- Organic foreign matter mass, in grams (g); m′ - Sample mass, in grams (g). ......


GB/T 5494-2008 GB NATIONAL STANDARD OF THE PEOPLE’S REPUBLIC OF CHINA ICS 67.040 X 04 Replacing GB/T 5494-1985 Inspection of Grain and Oils – Determination of Foreign Matter and Unsound Kernels of Grain and Oilseeds ISSUED ON. NOVEMBER 04, 2008 IMPLEMENTED ON. JANUARY 20, 2009 Issued by. General Administration of Quality Supervision, Inspection and Quarantine; Standardization Administration of PRC. Table of Contents Foreword ... 3 1 Scope ... 4 2 Normative References ... 4 3 Apparatus ... 4 4 Illumination Requirements ... 5 5 Sample Preparation ... 5 6 Operation Procedures ... 5 7 Results Calculation ... 7 Foreword This Standard replaced GB/T 5494-1985 Inspection of Grain and Oilseeds – Methods for Determination of Foreign Matter and Unsound Kernels. Compared with GB/T 5494-1985, this Standard has the major changes as follows. --- Added the contents of Normative References; --- Added the illumination requirements during the inspection operational process; --- Added the inspection method for the unsound kernels of rice; --- Partially Modified the operation method and results calculation; --- Deleted the calculation of pure kernel yield. This Standard was proposed by State Administration of Grain. This Standard shall be under the jurisdiction of National Technical Committee for Standardization of Grain and Oil. Drafting organization of this Standard. Henan provincial Foodgrain & Cooking Oil Stall Food Product Quality Supervision and Inspection Station. Participating drafting organization of this Standard. Grain & Oil Institute for Inspection and Supervision of Liaoning Province. Chief drafting staffs of this Standard. Yin Chenghua, Cui Guohua, and Hu Jipeng. The historical edition replaced by this Standard is as follows. --- GB/T 5494-1985. Inspection of Grain and Oils – Determination of Foreign Matter and Unsound Kernels of Grain and Oilseeds 1 Scope This Standard specifies the apparatus, illumination requirements, sample preparation, operation methods and results calculation for inspection of foreign matter and unsound kernels of grain and oilseeds. This Standard is applicable to the determination of foreign matter and unsound kernels of grain and oilseeds. 2 Normative References The provisions in following documents become the provisions of this Standard through reference in this Standard. For dated references, the subsequent amendments (excluding corrigendum) or revisions do not apply to this Standard, however, parties who reach an agreement based on this Standard are encouraged to study if the latest versions of these documents are applicable. For undated references, the latest edition of the referenced document applies. GB 5491 Inspection of Grain and Oilseeds – Methods for Sampling and Sample Reduction GB/T 22505 Inspection of Grain and Oils – Sensory Analysis Environment – Lighting 3 Apparatus 3.1 Balance with sensibility of 0.01g, 0.1g, 1g. 3.2 Grain sieve. 3.3 Electric selector. 3.4 Sample splitter and sample splitting plate. 3.5 Analytical disk, tweezers, etc. 4 Illumination Requirements The illumination conditions during the operation process shall meet the requirements of GB/T 22505. 5 Sample Preparation The specimen for inspecting the foreign matter can be divided into large and small specimen; the large specimen is used for inspecting the large specimen foreign matter including the large foreign matter and passed sieve material of absolute sieve; while the small specimen indicates small amount of specimen separated from the one inspected the large specimen foreign matter; it is used for inspecting the foreign matter with approximately the same size and shape of the grain. Separately take the specimen according to the provisions of GB 5491 to the specimen amount specified in Table 1. Table 1 -- Form of Specimen Amount for Feign Matter, Unsound Kernel Inspection Names of Grain and Oilseeds Large Specimen Amount / g Small Specimen Amount / g Small kernel. millet, sesame, rapeseed, etc. About 500 About 10 Medium kernel. rice, wheat, sorghum, red bean, cottonseed, etc. About 500 About 50 Large kernel. soybean, corn, pea, sunflower seed, small broad bean, etc. About 500 About 100 Super-large kernel. peanut fruit, kernel, castor seed, paulownia seed, tea seed, shiny-leaved yellow horn, large broad bean, etc. About 1000 About 200 Others. inspection of barnyard millet with husk and paddy in the sweet potato chips and rice About 500~1000 6 Operation Procedures 6.1 Inspection of foreign matter and unsound kernels in the general grain and oilseeds 6.1.1 Screening 6.1.1.1 Electric selector method. use the sieve layer stipulated in the quality standard to cover (microporous sieve is above, the mini-porous sieve is below, covered with sieve bottom); take the specimen according to the provisions to put onto the sieve, cover the sieve cap; put it onto the electric selector; turn on the power, turn on the switch; the sieve automatically turn to left and right for 1min, respectively (110r/min~120r/min); stand for a moment after screening; separately pour the screen overflow and screen underflow onto the analysis disk. The grains stuck in the middle of the sieve belong to screen overflow. 6.1.1.2 Hand sieving method. cover the sieve layer as per the method stipulated in 6.1.1.1; pour into the specimen, and cover the sieve cap. Then put the selector onto the glass plate or smooth desktop; use both hands to screen in the clockwise and counterclockwise directions at the speed of 110 times/min ~ 120times/min for 1 min, respectively. The screening range shall be controlled with sieve diameter expanding 8cm~10cm. The operation after screening is the same as 6.1.1.1. 6.1.2 Large-specimen foreign matter inspection From the average sample, separately take specimen according to the provision of Clause 5 to the large specimen amount (m) specified in Table 1, accurate to 1g; screening for twice according to the screening method specified in 6.1.1 (super-large kernel of grain and oilseeds shall be screened for 4 times); then select the screen overflow large foreign matter and screen underflow, and weigh them together (m1), accurate to 0.01g (large foreign matter of wheat shall be selected from the 4.5mm sieve). 6.1.3 Small-specimen foreign matter inspection From the specimen inspecting the large-specimen foreign matter, separately take the specimen according to the provisions of Clause 5 to the small- specimen amount (m2) specified in Table 1; when the small-specimen amount is no greater than 100g, accurate to 0.01g; when small-specimen amount is greater than 100g, accurate to 0.1g; pour into the analysis disk; select the foreign matter according to the provisions of quality standard; weigh (m3), accurate to 0.01g. 6.1.4 Minerals inspection If there is minerals indicator (excluding the rice) specified in the quality standard, select the minerals from the separated small-specimen foreign matter; weigh (m4), accurate to 0.01g. 6.1.5 Unsound kernel inspection When inspecting the small-specimen foreign matter, select the unsound kernel according to the provision of quality standard; weigh (m5), accurate to 0.01g. 6.2 Inspection of foreign matter and unsound kernel in the rice 6.2.1 Total mass inspection of bran powder, minerals and foreign matters Separately take 200g (m’) of specimen according to the provisions of Clause 5, accurate to 0.1g; place into the round-hole sieve with diameter 1.0mm for 2 times; screen as per the screening method specified in 6.1.1; after screening, tap the sieve gently, so that the bran powder can fall off on the bottom of the sieve. After all the specimens are screened, brush off the bran powder remained on the sieve layer, weigh together (m1’), accurate to 0.01g. Pour the screen overflow into the analysis disk (the kernels stuck in the middle of the sieve hole belong to screen overflow). Separately select the minerals from the specimen inspecting the bran powder, and weigh together (m2’), accurate to 0.01g. Select the paddy kernel, barnyard millet with husk and other foreign matters, weigh together (m3’), accurate to 0.01g. 6.2.2 Inspection of barnyard millet with husk and paddy kernel Separately take 500g of specimen according to the provisions of Clause 5, accurate to 1g; select the barnyard millet with husk (X) and paddy kernel (Y); calculate their contents, respectively. 6.2.3 Unsound kernel inspection Separately take the specimen according to the provisions of Clause 5 to the small- specimen amount (m4’) specified in Table 1 (the amount of small-specimen of rice is the same as the crude grain), accurate to 0.01g; pour the specimen into the analysis disk; select the unsound kernels according to the provisions of grain and oilseeds quality standard, and weigh (m5’), accurate to 0.01g. 7 Results Calculation 7.1 Results calculation for inspection of foreign matter and unsound kernels in general grain and oilseeds 7.1.1 The large-specimen foreign matter content (M) shall be expresse... ......

Similar standards: GB/T 5502-2018  GB/T 5498-2013  
Similar PDFs (Auto-delivered in 9 seconds): GB/T 5494-2019  GB/T 5498-2013  GB/T 5490-2010  GB/T 5532-2022