GB/T 12496.19-2015 English PDF

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GB/T 12496.19-2015: Test methods of wooden activated carbon -- Determination of iron content
Status: Valid

GB/T 12496.19: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 12496.19-2015	129	Add to Cart	3 days	Test methods of wooden activated carbon -- Determination of iron content	Valid
GB/T 12496.19-1999	199	Add to Cart	2 days	Test methods of wooden activated carbon-Determination of iron content	Obsolete
GB/T 12496.19-1990	199	Add to Cart	2 days	Test method of wooden activated carbon--Particle size distribution	Obsolete

Similar standards

GB/T 12496.8   GB/T 12496.9   GB/T 12496.10   GB/T 17664   GB/T 31744   

Basic data

Standard ID: GB/T 12496.19-2015 (GB/T12496.19-2015)
Description (Translated English): Test methods of wooden activated carbon -- Determination of iron content
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: B73
Classification of International Standard: 65.020
Word Count Estimation: 6,652
Date of Issue: 2015-07-03
Date of Implementation: 2015-11-02
Older Standard (superseded by this standard): GB/T 12496.19-1999
Quoted Standard: GB/T 6682-2008; GB/T 9721-2006
Regulation (derived from): National Standard Announcement 2015 No.22
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 test method for wood activated carbon iron content. This Standard applies to wood-based activated carbon.

GB/T 12496.19-2015: Test methods of wooden activated carbon -- Determination of iron content

---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.
Test methods of wooden activated carbon. Determination of iron content ICS 65.020 B73 National Standards of People's Republic of China Replacing GB/T 12496.19-1999 Test methods of wooden activated carbon Determination of iron content Issued on. 2015-07-03 2015-11-02 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Foreword

This standard was drafted in accordance with GB/T 1.1-2009 given rules. This standard replaces GB/T 12496.19-1999 "Standard Test Method for Determination of wooden activated carbon iron content", and GB/T 12496.19- Compared to 1999, the main technical changes as follows. precise iron standard solution preparation steps. This standard is proposed and managed by the State Forestry Administration. This standard was drafted. Chinese Academy of Forestry Forest Research Institute of Chemical Industry, Chinese Academy of Science and Technology, Institute of Chemical Industry of Forest Products Development Corporation. The main drafters of this standard. Gong, Zhang Tianjian, Daiwei Di, Yan-Ping Zhang, Chen Chao, Xu Yu, Gu Yujie. This standard replaces the standards previously issued as follows. --- GB/T 12496.8-1990; --- GB/T 12496.19-1999. Test methods of wooden activated carbon Determination of iron content

1 Scope

This standard specifies the test method for wood activated carbon iron content. This standard applies to wood-based activated carbon.

2 Normative references

The following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein Member. For undated references, the latest edition (including any amendments) applies to this document. Laboratory use specifications and test methods GB/T 6682-2008 Analysis GB/T 9721-2006 Chemicals General molecular absorption spectrophotometry (UV and visible part)

3 The first law of ammonium thiocyanate method

3.1 Principle of the method Ammonium persulfate as an oxidizing agent, ammonium thiocyanate as reagent, and iron (Fe3) form a red complex of iron with visual colorimetry content. 3.2 Instrument Analytical balance. a sense of the amount of 0.0001g. 3.3 Reagents and solutions 3.3.1 hydrochloric acid (GB/T 622), 1 9. 3.3.2 ammonium persulfate (GB/T 655), 10g/L solution of ammonium persulfate. 3.3.3 Ammonium thiocyanate (GB/T 660), 80g/L ammonium thiocyanate solution. 3.3.4 0.01mg/mL iron standard solution Weigh 0.8634g ammonium ferric sulfate [Fe (NH4) (SO4) 2 · 12H2O] (GB/T 1279) dissolved in water, was added 2.5mL of concentrated sulfuric acid, shift Into 1000mL volumetric flask, dilute to the mark, shake, this solution containing Fe3 0.1mg/mL. In use, the precise pipetting 100.0mL Above solution, transferred to 1000mL volumetric flask, dilute to the mark, shake, this solution containing Fe3 0.01mg/mL. 3.4 Operation 3.4.1 crushed to learn ≤71μm said sample 1.00g (through 200 mesh) of (accurate to 10mg), placed in 100mL Erlenmeyer flask , Add "19" hydrochloric acid solution 25mL, ease boil 5min. After cooling slightly in 100mL flask filtration, washed several times with hot water filter Slag, and the filtrate and washings were combined, cooled to room temperature, dilute to the mark. Accurate Pipette 10.0mL said filtrate in 50mL colorimetric tube, add too Ammonium sulfate solution 5.0mL, ammonium thiocyanate solution 5.0mL, diluted to 50mL, shake, place 10min after the red iron standard solution (3.3.4) and test liquid while the same treatment was red contrast. ......

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