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US$169.00 · In stock Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email. GB/T 24891-2010: Determination of particle size for compound fertilizers Status: Valid
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Determination of particle size for compound fertilizers
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GB/T 24891-2010
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Basic data | Standard ID | GB/T 24891-2010 (GB/T24891-2010) | | Description (Translated English) | Determination of particle size for compound fertilizers | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | G20 | | Classification of International Standard | 65.080 | | Word Count Estimation | 7,772 | | Date of Issue | 2010-06-30 | | Date of Implementation | 2011-01-01 | | Quoted Standard | GB/T 6003.1-1997; GB 15063 | | Regulation (derived from) | National Standard Approval Announcement 2010 No.2 (Total No.157) | | Issuing agency(ies) | General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China | | Summary | This standard specifies the determination of fertilizer (compound fertilizer) particle size by sieving. This standard applies to the determination of the particle size in fertilizer (compound fertilizer). |
GB/T 24891-2010: Determination of particle size for compound fertilizers---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Determination of particle size for compound fertilizers
ICS 65.080
G20
National Standards of People's Republic of China
Determination of compound fertilizer particle size
Issued on. 2010-06-30
2011-01-01 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China released
Foreword
This standard is one of compound fertilizer series of standard test methods, which are listed below national standards.
--- GB/T 8571-2008 "compound fertilizer laboratory sample preparation";
--- GB/T 8572-2010 "After distillation of total nitrogen content for compound fertilizers - Titrimetric method";
--- GB/T 8573-2010 "Determination of phosphorus content in compound fertilizer quinoline phosphomolybdate gravimetric method";
--- GB/T 8574-2010 "Determination of potassium content for compound fertilizers - Potassium tetraphenylborate gravimetric method";
--- GB/T 8576-2010 "free water for compound fertilizers - Determination vacuum oven method";
--- GB/T 8577-2010 "free water for compound fertilizers - Determination Karl Fischer method";
--- GB/T 24890-2010 "Determination of chlorine ion content in compound fertilizer";
The standard proposed by China Petroleum and Chemical Industry Association.
This standard by the National Standardization Technical Committee and soil conditioners Fertilizers (SAC/TC105) centralized.
This standard was drafted. National Fertilizer Quality Supervision and Inspection Center (Shanghai), Heilongjiang Province, cereals compound fertilizers Limited.
The main drafters of this standard. Zhu Tao, Su Gang.
Determination of compound fertilizer particle size
1 Scope
This standard specifies the determination of compound fertilizers (compound fertilizer) particle size by sieving.
This standard applies to the determination of particle size in compound fertilizers (compound fertilizer).
2 Normative references
The following documents contain provisions which, through reference in this standard and become the standard terms. For dated references, subsequent
Amendments (not including errata content) or revisions do not apply to this standard, however, encourage the parties to the agreement are based on research
Whether the latest versions of these documents. For undated reference documents, the latest versions apply to this standard.
GB/T 6003.1-1997 woven wire mesh test sieve (eqv ISO 3310-1.1990)
GB 15063 compound fertilizers (compound fertilizer)
Principle 3
Test sieves with certain specifications, the laboratory sample into different particle diameters, weighing, calculate the mass fraction.
4 Instrument
Typically laboratory instruments.
4.1 test sieve (GB/T 6003.1-1997R40/3 series). a pore diameter of 1.00mm, 4.75mm or 3.35mm, 5.60mm of
Sieve, with lid and chassis;
4.2 Balance. a sense of the amount of 0.5g;
4.3 sieve shaker.
Step 5 Analysis
Depending on the size of the pellets, the sieve by 1.00mm, 4.75mm or 3.35mm, 5.60mm folded sequentially mounted on the chassis, said
Take prescribed by GB 15063 and dividing laboratory samples of approximately 200g (accurate to 0.5g), were placed 4.75mm or 5.60mm sieve
On the cover screen cover, placed on the sieve shaker, sieve clamping lid, shaking 5min, or manual screening. Weighing 1.00mm ~ 4.75mm or
3.35mm ~ 5.60mm between the sample (accurate to 0.5g), caught in the meshes of the sample is not made through the sieve.
Calculation results of the analysis of 6
Size w1, to a particle size 1.00mm ~ 4.75mm or 3.35mm ~ 5.60mm sample of the total sample mass fraction, the number of
Value in%, according to equation (1).
w1 =
m1
m × 100
(1)
Where.
m1 --- 1.00mm ~ 4.75mm or 3.35mm ~ 5.60mm quality sample values \u200b\u200bbetween units of grams (g);
Numerical m --- sample mass, in grams (g).
Calculation result to one decimal place.
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