苯磺酸上有个羟基和羧基检测标准
CNAS认证
CMA认证
HG/T 3463-2000
化学试剂 偶氮胂Ⅲ【2，7－双（2－苯砷酸－1－偶氮）－1，8－二羟基萘－3，6－二磺酸】
Chemical reagent Arsenazo Ⅲ
- 【发布单位或类别】 CN-HG行业标准-化工
- 【发布日期】2000-06-05
- 【CCS分类】G60/69化学试剂
- 【ICS分类】71.040.30化学试剂
ASTM D7881-20e1
Standard Test Method for Determination of 4-Carboxybenzaldehyde and
Standard Test Method for Determination of 4-Carboxybenzaldehyde and
Standard Test Method for Determination of 4-Carboxybenzaldehyde and
- 【发布单位或类别】 US-ASTM美国材料与试验协会
- 【发布日期】2020-10-01
- 【CCS分类】
- 【ICS分类】71.080.40有机酸
ASTM D7883-20
Standard Test Method for Determination of 4-Carboxybenzaldehyde and
Standard Test Method for Determination of 4-Carboxybenzaldehyde and
Standard Test Method for Determination of 4-Carboxybenzaldehyde and
- 【发布单位或类别】 US-ASTM美国材料与试验协会
- 【发布日期】2020-10-01
- 【CCS分类】
- 【ICS分类】71.080.40有机酸
ASTM D7881-20
Standard Test Method for Determination of 4-Carboxybenzaldehyde and
Standard Test Method for Determination of 4-Carboxybenzaldehyde and
Standard Test Method for Determination of 4-Carboxybenzaldehyde and
- 【发布单位或类别】 US-ASTM美国材料与试验协会
- 【发布日期】2020-10-01
- 【CCS分类】
- 【ICS分类】71.080.40有机酸
ASTM D7881-19
Standard Test Method for Determination of 4-Carboxybenzaldehyde and
Standard Test Method for Determination of 4-Carboxybenzaldehyde and
Standard Test Method for Determination of 4-Carboxybenzaldehyde and
- 【发布单位或类别】 US-ASTM美国材料与试验协会
- 【发布日期】2019-11-01
- 【CCS分类】
- 【ICS分类】71.080.40有机酸
ASTM D7881-13
Standard Test Method for Determination of 4-Carboxybenzaldehyde and
Standard Test Method for Determination of 4-Carboxybenzaldehyde and
Standard Test Method for Determination of 4-Carboxybenzaldehyde and
- 【发布单位或类别】 US-ASTM美国材料与试验协会
- 【发布日期】2013-08-15
- 【CCS分类】
- 【ICS分类】71.080.40有机酸
ASTM D7883-19
Standard Test Method for Determination of 4-Carboxybenzaldehyde and
Standard Test Method for Determination of 4-Carboxybenzaldehyde and
Standard Test Method for Determination of 4-Carboxybenzaldehyde and
- 【发布单位或类别】 US-ASTM美国材料与试验协会
- 【发布日期】2019-11-01
- 【CCS分类】
- 【ICS分类】71.080.40有机酸
ASTM D7883-13
Standard Test Method for Determination of 4-Carboxybenzaldehyde and
Standard Test Method for Determination of 4-Carboxybenzaldehyde and
Standard Test Method for Determination of 4-Carboxybenzaldehyde and
- 【发布单位或类别】 US-ASTM美国材料与试验协会
- 【发布日期】2013-08-01
- 【CCS分类】
- 【ICS分类】71.080.40有机酸
UNE 34210:1981
SODIUM CHLORIDE. DETERMINATION OF FLUORIDE CONTENT. PHOTOMETRIC METHOD WITH SODIUM 2-(SULFOPHENYLAZO)-1,8 DIHYDROXYNAPHTHALENE-3,6 DISULFONATE (SPADNS).
SODIUM CHLORIDE. DETERMINATION OF FLUORIDE CONTENT. PHOTOMETRIC METHOD WITH SODIUM 2-(SULFOPHENYLAZO)-1,8 DIHYDROXYNAPHTHALENE-3,6 DISULFONATE (SPADNS).
- 【发布单位或类别】 ES-UNE西班牙标准
- 【发布日期】1981-09-15
- 【CCS分类】
- 【ICS分类】
