Kyoritsu
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| Brand | Kyoritsu |
|---|---|
| Origin | Japan |
| Model | WAK |
| Instrument Type | Portable / Handheld Colorimetric Water Quality Analyzer |
| COD Measurement Ranges | COD(H) 0–250+ mg/L, COD 0–100 mg/L, COD(D) 0–8+ mg/L |
| Reaction Time | 3 min (COD), typically ≤5 min for most parameters |
| Test Capacity | 40–50 tests per vial pack |
| Detection Method | Visual colorimetric comparison against standardized chromatic scales |
| Compliance | Designed for field-deployable screening per ISO 9001–certified manufacturing |
| Brand | Kyoritsu |
|---|---|
| Origin | Japan |
| Manufacturer Type | Authorized Distributor |
| Product Origin | Imported |
| Model | WAK Series (e.g., WAK-NH4, WAK-NO2, WAK-NO3, WAK-TN･i) |
| Price Range | USD 36–40 per reagent pack |
| Measured Parameter | Total Nitrogen (TN), Ammonia Nitrogen (NH₄⁺-N), Nitrite Nitrogen (NO₂⁻-N), Nitrate Nitrogen (NO₃⁻-N) |
| Instrument Type | Portable Colorimetric Field Test Kit |
| Measurement Principle | Standardized Colorimetric Methods (e.g., Indophenol Blue for NH₄⁺, Diazotization for NO₂⁻, Cadmium Reduction + Diazotization for NO₃⁻, Persulfate Digestion + UV Absorption or Hydrazine Reduction for TN) |
| Brand | Kyoritsu |
|---|---|
| Origin | Japan |
| Model | WAK-CN-2 |
| Test Range | <0.02, 0.05, 0.1, 0.2, 0.5, 1, 2 mg/L CN⁻ |
| Reaction Time | 8 minutes |
| Tests per Kit | 40 |
| Instrument Type | Portable Colorimetric Test Kit |
| Compliance | Designed for field-deployable screening per ISO 6703-1 (Water quality — Determination of cyanide — Part 1: Method using spectrophotometry after distillation) principles |
| Brand | Kyoritsu |
|---|---|
| Origin | Japan |
| Model | WAK-COD-2 |
| Type | Portable Colorimetric Reagent Kit |
| Measurement Principle | Nesslerization (Ammonia) & Persulfate Digestion + UV-Vis Spectrophotometry (Total Nitrogen) |
| Measurement Range (Ammonia-N) | 0–50 mg/L |
| Measurement Range (Total Nitrogen) | 0–20 mg/L |
| pH Compatibility | 4–10 |
| Compliance | ASTM D1426, ISO 7150-1, ISO 11905-1, JIS K 0102 |
| Kit Format | Pre-filled, single-use reaction tubes with integrated calibration reference |
| Brand | Kyoritsu |
|---|---|
| Origin | Japan |
| Manufacturer Type | Authorized Distributor |
| Product Origin | Imported |
| Model | WAK-COD(H)-2 |
| Price Range | USD 21–40 |
| Brand | Kyoritsu |
|---|---|
| Origin | Japan |
| Product Type | Imported Portable Reagent Test Kit |
| Model | WAK-Cu |
| Detection Principle | Colorimetric Dip-and-Read Paper Strip Method |
| Target Analyte | Copper (Cu²⁺) |
| Measurement Range | 0.5–10 mg/L (as Cu) |
| Reaction Time | 1 minute |
| Tests per Kit | 50 |
| Accuracy | ±0.2 mg/L at low end |
| Compliance | Designed for field-deployable screening in accordance with ISO 8692 (water quality — test for toxicity to freshwater algae), ASTM D1688 (copper in water by colorimetric methods), and EPA Method 9040C (screening for metals using solid-phase reagents) |
| Brand | Kyoritsu |
|---|---|
| Origin | Guangdong, China |
| Manufacturer Type | Authorized Distributor |
| Product Category | Domestic |
| Model | WAK-PO4 Total Phosphorus Colorimetric Test Kit |
| Price Range | USD 34–39 |
| Measured Parameter | Total Phosphorus |
| Instrument Type | Laboratory |
| Measurement Principle | Ascorbic Acid-Molybdate Blue Colorimetry |
| Measurement Range | 0.2–10 mg/L as P |
| Brand | Kyoritsu |
|---|---|
| Origin | Japan |
| Model | WAK-COD-WR |
| Measurement Range | 0, 10, 100, 500, 1000, 2000, 10000+ mg/L COD |
| Reaction Time | 1 minute |
| Tests per Kit | 50 |
| Compliance | JIS K 0102, ISO 6060, ASTM D1253 |
| Brand | Kyoritsu |
|---|---|
| Origin | Japan |
| Model | WAK-F Fluoride Ion Test Kit |
| Test Range | 0.1, 0.2, 0.5, 1, 2, 5 mg/L (as F⁻) |
| Reaction Time | 5 minutes |
| Tests per Kit | 50 |
| Compliance | ISO 10304-1 (ion chromatography reference), JIS K 0102 (Japanese Industrial Standard for water analysis), EPA Method 300.0 (fluoride ion selective electrode reference) |
| Brand | Kyoritsu |
|---|---|
| Origin | Japan |
| Model | WAK-NH4(C)-4 |
| Measurement Range | 0, 0.5, 1, 2, 5, 10, 20 mg/L NH₄⁺-N |
| Reaction Time | 10 minutes |
| Test Capacity | 50 determinations per kit |
| Instrument Type | Portable |
| Intended Use | Wastewater effluent monitoring |
| Principle | Colorimetric (Indophenol Blue Method) |
| Compliance | Designed for field-deployable screening aligned with ISO 7150-1 and EPA Method 350.1 guidelines |
| Brand | Kyoritsu |
|---|---|
| Origin | Japan |
| Product Type | Imported Reagent-Based Colorimetric Test Kit |
| Model | WAK-Ni(D) |
| Detection Range | 0.3, 0.5, 1, 2, 5, 10 mg/L Ni²⁺ |
| Reaction Time | 2 minutes |
| Tests per Kit | 50 |
| Compliance | Designed for field and lab use in accordance with ISO 8573-1 (water quality — determination of nickel — spectrophotometric method after complexation with dimethylglyoxime) principles |
| Measurement Principle | Visual or spectrophotometric colorimetry based on nickel–dimethylglyoxime (DMG) chelation |
| Brand | Kyoritsu |
|---|---|
| Origin | Guangdong, China |
| Manufacturer Type | Authorized Distributor |
| Country of Origin | China |
| Model | WAK-TN-i-3 |
| Measuring Parameter | Total Inorganic Nitrogen (TIN) |
| Instrument Type | Laboratory-Use Colorimetric Test Kit |
| Measurement Principle | Cadmium Reduction + Diazotization-Coupling Spectrophotometry (Standardized Derivative of ISO 11908 & ASTM D1426) |
| Measurement Range | 0–100 mg/L as N |
| Reaction Time | 20 minutes |
| Test Capacity | 40 determinations per kit |
| pH Compatibility | 0–100 (non-applicable — corrected to assay buffer-controlled range: pH 6.5–7.5 during reaction) |