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GB/T 660-2015: Chemical reagent -- Ammonium thiocyanate
Status: Valid GB/T 660: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 660-2015 | English | 169 |
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Chemical reagent -- Ammonium thiocyanate
| Valid |
GB/T 660-2015
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| GB/T 660-1992 | English | 199 |
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Chemical reagent--Ammonium thiocyanate
| Obsolete |
GB/T 660-1992
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PDF similar to GB/T 660-2015
Basic data | Standard ID | GB/T 660-2015 (GB/T660-2015) | | Description (Translated English) | Chemical reagent -- Ammonium thiocyanate | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | G62 | | Classification of International Standard | 71.040.30 | | Word Count Estimation | 8,888 | | Date of Issue | 2015-05-15 | | Date of Implementation | 2015-12-01 | | Older Standard (superseded by this standard) | GB/T 660-1992 | | Quoted Standard | GB/T 601; GB/T 602; GB/T 603; GB/T 6682; GB/T 9723-2007; GB/T 9724; GB/T 9728; GB/T 9729; GB/T 9738; GB/T 9739; GB/T 9741-2008; GB 15346; HG/T 3484; HG/T 3921 | | Adopted Standard | ISO 6353-3-1987, NEQ | | Regulation (derived from) | National Standard Announcement 2015 No. 15 | | 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 chemical ammonium thiocyanate test traits, specifications, test methods, inspection rules and packaging, storage, transportation and signage. This Standard applies to chemicals ammonium thiocyanate test. | GB/T 660-2015: Chemical reagent -- Ammonium thiocyanate---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.
Chemical reagent. Ammonium thiocyanate
ICS 71.040.30
G62
National Standards of People's Republic of China
Replacing GB/T 660-1992
Chemical reagents Ammonium thiocyanate
(ISO 6353-3. 1987, Reagentsforchemicalanalysis-
Part 3. Specifications-Secondseries, NEQ)
Issued on. 2015-05-15
2015-12-01 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 660-1992 "Chemicals ammonium thiocyanate," compared with the GB/T 660-1992 Technical Changes
as follows.
--- Clarity test specifications by a "qualified" to "No. 4", "6" (see Chapter 4, 1992 edition 3.3);
--- Reducing iodine substance analytical specifications by the "0.05%" to "0.025%", chemically pure specifications from "0.1%" to improve
"0.05%", and improve the measuring method (see Chapter 4, 513, 1992 edition of 3.3,4.3.10.);
--- Modify the packaging and logo (see Chapter 7, Chapter 6, 1992 edition).
The standard reference method using redrafted ISO 6353-3. 1987 "Reagents for chemical analysis - Part 3. Specifications 2 Series" in R46
"Ammonium thiocyanate" preparation, and ISO 6353-3. 1987 is equivalent to the degree of non-uniformity.
The standard proposed by China Petroleum and Chemical Industry Association.
This standard by the National Standardization Technical Committee Chemistry (SAC/TC63) centralized.
This standard is drafted by. Guangdong Guanghua Science and Technology Co., Ltd., Beijing Institute of Chemical reagents.
The main drafters of this standard. Monday Lang Linchu Qing, Zhang Jianfeng, Zhang Zhibin.
This standard replaces the standards previously issued as follows.
--- GB/T 660-1965, GB/T 660-1978, GB/T 660-1992.
Chemical reagents Ammonium thiocyanate
1 Scope
This standard specifies the chemical reagent ammonium thiocyanate traits, specifications, test methods, inspection rules, packaging, storage, transportation and signage.
This standard applies to chemical agents ammonium thiocyanate test.
Molecular formula. NH4SCN
Molecular Weight. 76.12 (according to 2011 international relative atomic mass)
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.
Preparation of GB/T 601 chemical reagent standard titration solution
Preparation of standard solution of GB/T 602 Determination of impurities in chemical reagents
GB/T 603 chemical reagent in test methods - Preparations with
Laboratory use specifications and test methods GB/T 6682 Analysis
GB/T 9723-2007 Chemicals flame atomic absorption spectrometry General
GB/T 9724 General rule for determination of pH chemical reagent
GB/T 9728 General method for determination of chemical reagents sulfate
GB/T 9729 General method for determination of chloride Chemicals
GB/T 9738 Determination of water insoluble chemical reagent - General method
GB/T 9739 General method for determination of iron chemical reagents
GB/T 9741-2008 Determination of residue on ignition Chemicals General method
GB 15346 chemical reagent packaging and marking
HG/T 3484 standard chemical reagents glass emulsion and clarity standards
HG/T 3921 Chemicals sampling and acceptance rules
3 Characters
Colorless crystalline, deliquescent, soluble in water and ethanol.
4 Specification
Ammonium thiocyanate as shown in Table 1.
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