1.1 Methods
1.1 Table of Methods
* = free, combined, total; PP = powder pack; T = tablet;
L = liquid; TT = tube test; LR = low range; MR = middle range; HR = high range;
Vacu-vial
®
is a registered trade mark of CHEMetrics Inc.
No. Analysis Reagent Range Displayed
as
Method
[nm]
Page
191 Hardness,
Calcium 2T
tablet 0-500 mg/l CaCO
3
Murexide
4
560 88
200
Hardness, total T
tablet 2-50 mg/l CaCO
3
Metallphthalein
3
560 90
201 Hardness, total
HR T
tablet 20-500 mg/l CaCO
3
Metallphthalein
3
560 92
205 Hydrazine P powder 0.05-0.5 mg/l N
2
H
4
4-(Dimethyl-
amino)-
benzaldehyde
3
430 94
206 Hydrazine L liquid 0.005-0.6 mg/l N
2
H
4
4-(Dimethyl-
amino)-
benzaldehyde
3
430 96
207 Hydrazine C Vacu-vial 0.01-0.7 mg/l N
2
H
4
PDMAB 430 98
210 Hydrogen
peroxide
tablet 0.03-3 mg/l H
2
O
2
DPD/catalyst
5
530 100
215 Iodine T tablet 0.05-3.6 mg/l I DPD
5
530 102
220 Iron T tablet 0.02-1 mg/l Fe PPST
3
560 104,106
222 Iron PP PP 0.02-3 mg/l Fe 1,10-Phenan-
troline
3
530 104,108
223 Iron (TPTZ) PP PP 0.02-1.8 mg/l Fe TPTZ 580 104,110
240 Manganese T tablet 0.2-4 mg/l Mn Formaldoxime 530 112
242 Manganese
LR PP
PP + liquid 0.01-0.7 mg/l Mn PAN 560 114
243 Manganese
HR PP
PP + liquid 0,1-18 mg/l Mn Periodate
oxidation
2
530 116
250 Molybdate T tablet 1-50 mg/l MoO
4
Thioglycolate
4
430 118
252 Molybdate
HR PP
PP 0.5-66 mg/l MoO
4
Mercaptoacetic
acid
430 120
265 Nitrate TT tube test 1-30 mg/l N
Chromotropic acid
430 122
270 Nitrite T tablet 0.01-0.5 mg/l N N-(1-Naphthyl)-
ethylendiamine
2,3
560 124
272 Nitrite LR PP PP 0.01-0.3 mg/l N Diazotization 530 126
280 Nitrogen,
total
LR TT
tube test 0.5-25 mg/l N Persulfate
digestion method
430 128
281 Nitrogen,
total
HR TT
tube test 5-150 mg/l N Persulfate
digestion method
430 130
290
Oxygen, active T
tablet 0.1-10 mg/l O
2
DPD 530 132
292 Oxygen,
dissolved
Vacu-vial 10-800 μg/l O
2
Rhodazine D
TM
530 134
300
Ozone (DPD) T
tablet 0.02-2 mg/l O
3
DPD/Glycine
5
530 136
70 PHMB T tablet 2-60 mg/l PHMB Buffer/Indicator 560 142
320 Phosphate, T
ortho LR
tablet 0.05-4 mg/l PO
4
Ammonium-
molybdate
2,3
660 144,
146