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SN/T 0871-2012

Chinese Standard: 'SN/T 0871-2012'
Standard IDContents [version]USDSTEP2[PDF] delivered inStandard Title (Description)StatusRelated Standard
SN/T 0871-2012English239 Add to Cart Days<=3 Determination of lactose in milk and dairy product for export Valid SN/T 0871-2012
SN/T 0871-2012Chinese14 Add to Cart <=1-day [PDF from Chinese Authority, or Standard Committee, or Publishing House]

   

BASIC DATA
Standard ID SN/T 0871-2012 (SN/T0871-2012)
Description (Translated English) Determination of lactose in milk and dairy product for export
Sector / Industry Commodity Inspection Standard (Recommended)
Classification of Chinese Standard X16
Word Count Estimation 10,166
Older Standard (superseded by this standard) SN/T 0871-2000
Drafting Organization China Shanghai Entry-Exit Inspection and Quarantine Bureau picking
Administrative Organization National Certification and Accreditation Administration Committee
Regulation (derived from) National Quality Inspection (2012) 237
Proposing organization Certification and Accreditation Administration of the People's Republic of China
Issuing agency(ies) General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China
Summary This standard specifies the lactose in milk and dairy products exports Determination. This standard applies to milk powder, whey powder, milk, yogurt, cheese, dried milk and other dairy products in the determination of sugar.

SN/T 0871-2012
Determination of lactose in milk and dairy product for export
People's Republic of China Entry-Exit Inspection and Quarantine Standards
Instead of the SN/T 0871-2000
Exports of milk and dairy products Determination of lactose
Issued on. 2012-05-07
2012-11-16 implementation
People's Republic of China
The State Administration of Quality Supervision, Inspection and Quarantine released
Foreword
This standard was drafted in accordance with GB/T 1.1-2009 given rules.
Instead of the standard SN/T 0871-2000 "Determination of the import and export of milk and dairy products lactose."
This standard and SN/T 0871-2000 compared to the main technical changes are as follows.
--- Adds a second HPLC method.
This standard is proposed and managed by the National Certification and Accreditation Administration Committee.
This standard was drafted. People's Republic of China Shanghai Entry-Exit Inspection and Quarantine Bureau.
The main drafters of this standard. Fan Xiang, Wang Chuan now, Han Li, Wang, Zhu Jian, Hai Hung Yi, Chen Hung Chao, Zhou Yao, Chen Di.
This standard replaces the standards previously issued as follows.
--- ZBX16003-1987, SN/T 0871-2000.
Exports of milk and dairy products Determination of lactose
1 Scope
This standard specifies the method for determination of export of milk and dairy products lactose.
This standard applies to the determination of milk powder, whey powder, milk, yogurt, cheese and other dairy products dried lactose.
The first method spectrophotometry (Arbitration Act)
2 Method summary
Sample was added a solution of zinc sulfate and barium hydroxide solution to precipitate proteins and other impurities by centrifugation, the upper layer in the sample solution in benzene lactose
Phenol, sodium hydroxide, picric acid and sodium bisulfite and generated under orange complex, determined by spectrophotometry, using the standard curve method
Quantified.
3 reagent material
Unless otherwise indicated, the reagents used were of analytical grade, double distilled water.
3.1 precipitant
3.1.1 barium hydroxide.
3.1.2 zinc sulfate.
3.1.3 4.5% barium hydroxide solution.
3.1.4 5% zinc sulfate solution.
3.2 coloring agent
3.2.1 phenol.
3.2.2 sodium hydroxide.
3.2.3 picric acid.
Sodium bisulfite 3.2.4.
3.2.5 1% phenol solution.
3.2.6 5% sodium hydroxide solution.
3.2.7 1% picric acid solution.
3.2.8 1% sodium bisulfite solution.
3.2.9 When used in the order volume (1221) formulated this coloring agent stored in a refrigerator at 4 ℃, can be used for one week.
3.3 Lactose
3.3.1 Lactose Standard. Purity ≥99%.
3.3.2 lactose standard working solution. Weigh accurately at 70 ℃ vacuum drying oven to constant weight the right amount of lactose standard (3.3.1), add water-soluble
Solution, transferred to 500mL volumetric flask, dilute to the mark, dubbed the concentration of standard working solution 1.00mg/mL of.
Related standard:   SN/T 2101-2016  SN/T 4262-2015
   
 
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