
Determination of Lead in high purity arenaceous quartz
time:
2024-07-05 09:23:49
- SJ 3228.10-1989
- Abolished
Standard ID:
SJ 3228.10-1989
Standard Name:
Determination of Lead in high purity arenaceous quartz
Chinese Name:
高纯石英砂中铅的测定
Standard category:
Electronic Industry Standard (SJ)
-
Date of Release:
1989-03-20 -
Date of Implementation:
1989-03-25 -
Date of Expiration:
2016-06-01
alternative situation:
被SJ/T 3228.10-2016代替

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Summary:
SJ 3228.10-1989 高纯石英砂中铅的测定 SJ3228.10-1989 标准下载解压密码:www.bzxz.net

Some standard content:
中华人民共和国机械电子工业部部标准高纯石英砂中铅的测定wwW.bzxz.Net
1主题内容与适用范围
1.1主题内容
本标准规定了高纯石英砂中铅的测定。1.2适用范围
本标准适用于各种级别的高纯石英砂的分析。2引用标准
SJ3228.2一89高纯石英砂分析方法通则。3方法提要
SJ3228.10—89
在酸性溶液中,二价铅与硫化氢反应生成难溶的硫化铅,用此进行目视比浊测定。4试剂
4.1氢氟酸:40%,
4.2盐酸:1:1。1:4g
4.3硫化氢饱和水溶液,
4.4铅标准溶液:0.005mgm1-l。称取金属针0.1g溶解于稀硝酸中并用水稀释至11的容量瓶中,即为含铅0.1mg·m1-1标准溶液,再将此溶液稀释至20倍为含铅0.005mg*m1-1的标准溶液。借此浊用。5分析步骤
准确称取经110℃烘于后的试样1g,置于高压地埚内衬中,以水润湿,加入氢氟酸6ml,1:1硝酸2ml,轻轻摇匀,并将内衬盖好,放人不锈钢套中,旋紧盖子,置于恒温干燥箱中于145℃恒温溶解2h,冷却至室温后打开盖子,轻轻顶出内衬,散口置于120℃电热板上蒸发至干,加1:1盐酸2ml,溶解残渣转移至带有25ml刻度的50ml比色管中,用1:1氢氧化铵中和至中性,加醋酸1ml,加水约10ml,加新配制的饱和硫化氢水溶液10ml,稀释至25ml,摇匀放置10min溶液呈暗色与标准比较。同时,以同样条件作试剂空白,并配制标准色阶与试样溶液进行比较。6计算
Pb(%)=
m·1000
中华人民共和国机械电子工业部1989-03-20批准·100
1989-03-25实施
SJ3228.10—89
式中:V-一消耗铅标准溶液的体积。m1C—铅标准溶液的浓度。mg·ml-\m-样品重量。g。
附加说明:
本标准由机械电子工业部电子标准化研究所提出。本标准由机械电子工业部第十八研究所、北京化学试剂二厂负责起草。本标准主要起草人,秦国珍、刘宝瑜。2
Tip: This standard content only shows part of the intercepted content of the complete standard. If you need the complete standard, please go to the top to download the complete standard document for free.
1主题内容与适用范围
1.1主题内容
本标准规定了高纯石英砂中铅的测定。1.2适用范围
本标准适用于各种级别的高纯石英砂的分析。2引用标准
SJ3228.2一89高纯石英砂分析方法通则。3方法提要
SJ3228.10—89
在酸性溶液中,二价铅与硫化氢反应生成难溶的硫化铅,用此进行目视比浊测定。4试剂
4.1氢氟酸:40%,
4.2盐酸:1:1。1:4g
4.3硫化氢饱和水溶液,
4.4铅标准溶液:0.005mgm1-l。称取金属针0.1g溶解于稀硝酸中并用水稀释至11的容量瓶中,即为含铅0.1mg·m1-1标准溶液,再将此溶液稀释至20倍为含铅0.005mg*m1-1的标准溶液。借此浊用。5分析步骤
准确称取经110℃烘于后的试样1g,置于高压地埚内衬中,以水润湿,加入氢氟酸6ml,1:1硝酸2ml,轻轻摇匀,并将内衬盖好,放人不锈钢套中,旋紧盖子,置于恒温干燥箱中于145℃恒温溶解2h,冷却至室温后打开盖子,轻轻顶出内衬,散口置于120℃电热板上蒸发至干,加1:1盐酸2ml,溶解残渣转移至带有25ml刻度的50ml比色管中,用1:1氢氧化铵中和至中性,加醋酸1ml,加水约10ml,加新配制的饱和硫化氢水溶液10ml,稀释至25ml,摇匀放置10min溶液呈暗色与标准比较。同时,以同样条件作试剂空白,并配制标准色阶与试样溶液进行比较。6计算
Pb(%)=
m·1000
中华人民共和国机械电子工业部1989-03-20批准·100
1989-03-25实施
SJ3228.10—89
式中:V-一消耗铅标准溶液的体积。m1C—铅标准溶液的浓度。mg·ml-\m-样品重量。g。
附加说明:
本标准由机械电子工业部电子标准化研究所提出。本标准由机械电子工业部第十八研究所、北京化学试剂二厂负责起草。本标准主要起草人,秦国珍、刘宝瑜。2
Tip: This standard content only shows part of the intercepted content of the complete standard. If you need the complete standard, please go to the top to download the complete standard document for free.
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