DPD 1 Reagent Solution

As a rule, liquid reagents do not consist of a single preparation but comprise several components that need to be added to the sample in a certain order.

As both the size and the number of drops have a decisive effect on the resultant colour complex, the reagents need to be added with a high degree of precision.

The shelf life of liquid reagents is reduced by temporary contact with oxygen in the air when the bottle is opened as well as by unsuitable storage environments (presence of sunlight or high temperatures).

Note according to EU regulation 2019/1148
This product is regulated by Regulation (EU) 2019/1148: all suspicious transactions, and significant disappearances and thefts should be reported to the relevant national contact point. See https://ec.europa.eu/info/index_en

Part Number 471021

100 mL

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Product information

Parameter and Range	Method No.	Instrument Type
Chlorine L 0.01 - 0.1 mg/L Cl₂	M3120	Comparator 2000+
Chlorine L 0.1 - 1.0 mg/L Cl₂	M3114	Comparator 2000+
Chlorine L 0.1 - 1.0 mg/L Cl₂	M3123	Chlorine Comparator 2000+
Chlorine L 0.1 - 2.0 mg/L Cl₂	M3115	Comparator 2000+
Chlorine L 0.02 - 0.2 mg/L Cl₂	M3121	Comparator 2000+
Chlorine L 0.02 - 0.3 mg/L Cl₂	M3117	Chlor Comparator 2000+
Chlorine L 0.2 - 0.8 mg/L Cl₂	M3119	Comparator 2000+
Chlorine L 0.2 - 4.0 mg/L Cl₂	M3118	AF 129 Water Balance AF 405 M Chlorine, pH value, Alkalinity-m, Calcium hardness, Cyanuric acid Chlor Comparator 2000+
Chlorine L 0.02 - 4.0 mg/L Cl₂ ^a)	M101	MD 100 Chlorine, Bromine, pH, Cyanuric acid, Alkalinity-m, Calcium hardness, tablet reagents (OTZ) MD 100 Chlorine, liquid reagents MD 100 Chlorine, pH, Alkalinity-m, liquid reagents for Chlorine and pH (OTZ) MD 100 Chlorine, pH, Alkalinity-m, tablet reagents (OTZ) MD 100 Chlorine, pH, Cyanuric acid, Alkalinity-m, Calcium hardness, tablet reagents (OTZ) MD 100 Chlorine, pH, Cyanuric acid, Alkalinity-m, liquid reagents for Chlorine and pH (OTZ) MD 100 Chlorine, pH, Cyanuric acid, Alkalinity-m, tablet reagents (OTZ) MD 100 Chlorine, pH, Cyanuric acid, liquid reagents for Chlorine and pH (OTZ) MD 100 Chlorine, pH, Cyanuric acid, tablet reagents (OTZ) MD 100 Chlorine, pH, liquid reagents (OTZ) MD 100 Chlorine, pH, tablet reagents (OTZ) MD 100 Chlorine, tablet reagents MD 100 Chlorine DUO, Chlorine HR, pH, Alkalinity-m, Calcium hardness (OTZ) MD 100 Chlorine DUO, tablet reagents MD 100 Chlorine LR, Chlorine HR, Chlorine dioxide, tablet reagents MD 100 Cooling Water MD 110 Chlorine, Bromine, pH, Cyanuric acid, Alkalinity-m, Calcium hardness, tablet reagents MD 110 Chlorine, pH, Cyanuric acid, Alkalinity-m, liquid reagents MD 110 Chlorine, pH, Cyanuric acid, Alkalinity-m, tablet reagents MD 110 Chlorine, pH, Cyanuric acid, liquid reagents MD 110 Chlorine, pH, Cyanuric acid, tablet reagents MD 110 Cooling Water MD 200 Chlorine, Bromine, pH, Cyanuric acid, Acid capacity KS4.3, Calcium hardness, tablet reagents (OTZ) MD 200 Chlorine, Bromine, pH, Cyanuric acid, Alkalinity-m, Calcium hardness, tablet reagents (OTZ) MD 200 Chlorine, Chlorine dioxide, pH, Acid capacity KS4.3, tablet reagents (OTZ) MD 200 Chlorine, pH, Acid capacity KS4.3, liquid reagents for Chlorine and pH (OTZ) MD 200 Chlorine, pH, Acid capacity KS4.3, tablet reagents (OTZ) MD 200 Chlorine, pH, Acid capacity KS4.3, Urea, tablet reagents (OTZ) MD 200 Chlorine, pH, Alkalinity-m, liquid reagents for Chlorine and pH (OTZ) MD 200 Chlorine, pH, Alkalinity-m, tablet reagents (OTZ) MD 200 Chlorine, pH, Bromine, tablet reagents (OTZ) MD 200 Chlorine, pH, Cyanuric acid, Acid capacity KS4.3, Calcium hardness, tablet reagents (OTZ) MD 200 Chlorine, pH, Cyanuric acid, Acid capacity KS4.3, liquid reagents for Chlorine and pH (OTZ) MD 200 Chlorine, pH, Cyanuric acid, Acid capacity KS4.3, tablet reagents (OTZ) MD 200 Chlorine, pH, Cyanuric acid, Alkalinity-m, Calcium hardness, tablet reagents (OTZ) MD 200 Chlorine, pH, Cyanuric acid, Alkalinity-m, Copper, Iron, tablet reagents (OTZ) MD 200 Chlorine, pH, Cyanuric acid, Alkalinity-m, liquid reagents for Chlorine and pH (OTZ) MD 200 Chlorine, pH, Cyanuric acid, Alkalinity-m, tablet reagents (OTZ) MD 200 Chlorine, pH, Cyanuric acid, liquid reagents for Chlorine and pH (OTZ) MD 200 Chlorine, pH, Cyanuric acid, tablet reagents (OTZ) MD 200 Chlorine, pH, liquid reagents (OTZ) MD 200 Chlorine, pH, tablet reagents (OTZ) MD 600 MD 600 Photometer Series MD 610 MD 640 MultiDirect MultiDirect, with battery MultiDirect, without battery PM 620 PM 630
Chlorine L 0.05 - 0.5 mg/L Cl₂	M3122	Comparator 2000+
Chlorine L 1.0 - 4.0 mg/L Cl₂	M3116	AF 118 S Chlorine Comparator 2000+

Title	Online Download Type	Format
Instruction Manual Comparator Colour Disc - Chlorine 3 (Method No.: M3014, M3015, M3016, M3018, M3020, M3021, M3022, M3023, M3024, M3025, M3026, M3031, M3034, M3035, M3036, M3037, M3114)	Instruction Manual	PDF (0.05 MB)
Instruction Manual Comparator Colour Disc - Chlorine L (Method No.: M3115, M3116, M3117, M3118, M3119, M3120, M3121, M3122, M3123)	Instruction Manual	PDF (0.03 MB)
Instruction Manual Comparator Colour Disc - Chlorine 1 (Method No.: M3019)	Instruction Manual	PDF (0.03 MB)
Instruction Manual Single Method M101 - Chlorine L	Procedure Single Method	PDF (3.48 MB)
Validation Data DPD No.1 Free Chlorine	Validation Data	PDF (0.12 MB)