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Position: Chinese Standard in English/GB/T 4324.8-2008
GB/T 4324.8-2008   Methods for chemical analysis of tungsten - Determination of nickel content - The inductively coupled plasma atomic emission spectrometry 、 flame atomic absorption spectrometry and di (English Version)
Standard No.: GB/T 4324.8-2008 Status:valid remind me the status change

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Target Language:English File Format:PDF
Word Count: 4000 words Translation Price(USD):120.0 remind me the price change

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Implemented on:2008-12-1 Delivery: via email in 1~3 business day

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Standard No.: GB/T 4324.8-2008
English Name: Methods for chemical analysis of tungsten - Determination of nickel content - The inductively coupled plasma atomic emission spectrometry 、 flame atomic absorption spectrometry and di
Chinese Name: 钨化学分析方法 镍量的测定 电感耦合等离子体原子发射光谱法、火焰原子吸收光谱法和丁二酮肟重量法
Chinese Classification: H63    Rare refractory metals and their compounds
Professional Classification: GB    National Standard
ICS Classification: 77.120.99 77.120.99    Other non-ferrous metals and their alloys 77.120.99
Source Content Issued by: AQSIQ; SAC
Issued on: 2008-6-9
Implemented on: 2008-12-1
Status: valid
Superseding:GB/T 4324.8-1984 钨化学分析方法 丁二酮肟光度法测定镍量
Target Language: English
File Format: PDF
Word Count: 4000 words
Translation Price(USD): 120.0
Delivery: via email in 1~3 business day
GB/T4324《钨化学分析方法》分为27个部分,本部分为GB/T4324的第8部分。本部分代替GB/T4324.8—1984《钨化学分析方法 丁二酮肟光度法测定镍量》和GB/T4324.9—1984《钨化学分析方法 丁二酮肟重量法测定镍量》。本方法规定了钨粉、钨条、碳化钨、三氧化钨、钨酸、蓝钨、紫钨、仲钨酸铵及偏钨酸铵中镍量的测定方法。本方法也适用以上其测定,测定范围:0.0004%--0.050%。 本部分与GB/T4324.8—1984和GB/T4324.9—1984相比主要变化如下:
———测定方法增加了电感耦合等离子体原子发射光谱法和原子吸收光谱法,取消了丁二酮肟分光光度法;
———适用范围中增加了碳化钨、三氧化钨、钨酸、蓝钨、紫钨、仲钨酸铵及偏钨酸铵;
———方法3的测定范围由“0.20%~1.50%”改为“0.20%~2.00%”;
———将“测定次数”中“三次”改为“两次”;
———增加了三氧化钨、钨酸、蓝钨、紫钨、仲钨酸铵及偏钨酸铵的溶样方法;
———丁二酮肟镍沉淀的条件由原“pH8~9”改为“用氨水调至钨酸沉淀溶解,再用盐酸(1+1)调至溶液pH6左右,加入沉淀剂,30mL 氨水”;
———将5.4.2中“置于沸水浴中加热15min,切断电源,保温90min~100min”改为“加入沸水至250mL 体积”,使镍在热的溶液中沉淀,沉淀“放置1.5h”;
———将洗涤烧杯及沉淀的洗涤液由“冷的氢氧化氨溶液(1+99)”改为“水溶液”;
———增加了前言、精密度及质量保证和控制内容
Code of China
Standard
GB/T 4324.8-2008  Methods for chemical analysis of tungsten - Determination of nickel content - The inductively coupled plasma atomic emission spectrometry 、 flame atomic absorption spectrometry and di (English Version)
Standard No.GB/T 4324.8-2008
Statusvalid
LanguageEnglish
File FormatPDF
Word Count4000 words
Price(USD)120.0
Implemented on2008-12-1
Deliveryvia email in 1~3 business day
Detail of GB/T 4324.8-2008
Standard No.
GB/T 4324.8-2008
English Name
Methods for chemical analysis of tungsten - Determination of nickel content - The inductively coupled plasma atomic emission spectrometry 、 flame atomic absorption spectrometry and di
Chinese Name
钨化学分析方法 镍量的测定 电感耦合等离子体原子发射光谱法、火焰原子吸收光谱法和丁二酮肟重量法
Chinese Classification
H63
Professional Classification
GB
ICS Classification
Issued by
AQSIQ; SAC
Issued on
2008-6-9
Implemented on
2008-12-1
Status
valid
Superseded by
Superseded on
Abolished on
Superseding
GB/T 4324.8-1984 钨化学分析方法 丁二酮肟光度法测定镍量
Language
English
File Format
PDF
Word Count
4000 words
Price(USD)
120.0
Keywords
GB/T 4324.8-2008, GB 4324.8-2008, GBT 4324.8-2008, GB/T4324.8-2008, GB/T 4324.8, GB/T4324.8, GB4324.8-2008, GB 4324.8, GB4324.8, GBT4324.8-2008, GBT 4324.8, GBT4324.8
Introduction of GB/T 4324.8-2008
GB/T4324《钨化学分析方法》分为27个部分,本部分为GB/T4324的第8部分。本部分代替GB/T4324.8—1984《钨化学分析方法 丁二酮肟光度法测定镍量》和GB/T4324.9—1984《钨化学分析方法 丁二酮肟重量法测定镍量》。本方法规定了钨粉、钨条、碳化钨、三氧化钨、钨酸、蓝钨、紫钨、仲钨酸铵及偏钨酸铵中镍量的测定方法。本方法也适用以上其测定,测定范围:0.0004%--0.050%。 本部分与GB/T4324.8—1984和GB/T4324.9—1984相比主要变化如下:
———测定方法增加了电感耦合等离子体原子发射光谱法和原子吸收光谱法,取消了丁二酮肟分光光度法;
———适用范围中增加了碳化钨、三氧化钨、钨酸、蓝钨、紫钨、仲钨酸铵及偏钨酸铵;
———方法3的测定范围由“0.20%~1.50%”改为“0.20%~2.00%”;
———将“测定次数”中“三次”改为“两次”;
———增加了三氧化钨、钨酸、蓝钨、紫钨、仲钨酸铵及偏钨酸铵的溶样方法;
———丁二酮肟镍沉淀的条件由原“pH8~9”改为“用氨水调至钨酸沉淀溶解,再用盐酸(1+1)调至溶液pH6左右,加入沉淀剂,30mL 氨水”;
———将5.4.2中“置于沸水浴中加热15min,切断电源,保温90min~100min”改为“加入沸水至250mL 体积”,使镍在热的溶液中沉淀,沉淀“放置1.5h”;
———将洗涤烧杯及沉淀的洗涤液由“冷的氢氧化氨溶液(1+99)”改为“水溶液”;
———增加了前言、精密度及质量保证和控制内容
Contents of GB/T 4324.8-2008
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Keywords:
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