Learn More
Primary Opalescent Suspension, EP Grade, Reagecon™

Used to calibrate, control, qualify and validate turbidimeters and nephelometers. Primary Opalescent Suspension, EP Grade, Reagecon™ is a ready-to-use formazin suspension with an opalescent value of 4000 NTU. It is designed for use as a turbidity standard in accordance with Eu. Ph. Chapter 2.
Brand: Reagecon EPPOS01
Description
This Primary Opalescence Suspension is a ready-to-use turbidity standard presented in high-quality, tamper-evident bottles for use in calibrating turbidimeters and nephelometers and for controlling the reproducibility of their measurements.
This product is a formazin suspension prepared with equal parts hexamethylenetetramine solution and hydrazine sulphate solution. Aqueous formazine solutions feature small, uniform colloidal particles that scatter light in all directions, causing opalescence.
- Manufactured according to European Pharmocopoeia Chapter 2(2.2.1) guidelines with a Balance Certificate of Calibration issued in accordance with ISO 17025
- Prepared gravimetrically on a weight/weight basis using OIML traceable weights
- Concentration verified using a high-performance spectrophotometer calibrated using ISO Guide 34 accredited spectrophotometric standards
- The Primary Opalescence Suspension diluted in precise ratios to form the EP Reference Opalescence Suspensions (I, II, III, IV)
Specifications
Formazin suspension | |
100-97-0, 10034-93-2, 7732-18-5 | |
Yes | |
Formazin suspension | |
Eu. Ph. Chapter 2 |
Opalescence value = 4000 NTU | |
100 mL | |
Liquid Suspension | |
Hexamethylenetetramine, Hydrazine Sulphate |
Safety and Handling
- PRIMARY OPALESCENT SOLUTION
Signal Word
- Danger
Hazard Category
- Skin sensitiser Category 1
- Carcinogenicity Category 1B
- Skin sensitiser Category 1
Hazard Statement
- H317-May cause an allergic skin reaction.
- H350-May cause cancer.
Precautionary Statement
- P261-Avoid breathing dust/fume/gas/mist/vapours/spray.
- P280-Wear protective gloves/protective clothing/eye protection/face protection.
- P321-Specific treatment (see on this label).
- P333+P313-If skin irritation or rash occurs: Get medical advice/attention.
- P405-Store locked up.
- P501b-Dispose of contents/container in accordance with local/regional/national/international regulations.
Supplemental information
- MIXTURE LIST-Contains : methenamine, hydrazinium(2+) sulphate
Certificates
A lot number is required to show results for certificates. To find your lot number on previous orders use our order status area.
Lot Number | Certificate Type | Date | Catalog Number |
---|---|---|---|
EPPOS25B1 | Certificate of Analysis | 16/03/2025 | EPPOS01 |
EPPOS25A2 | Certificate of Analysis | 04/03/2025 | EPPOS01 |
EPPOS24M1 | Certificate of Analysis | 22/01/2025 | EPPOS01 |
EPPOS24K1 | Certificate of Analysis | 07/01/2025 | EPPOS01 |
EPPOS24H1 | Certificate of Analysis | 03/12/2024 | EPPOS01 |
Special Offers
-
Multiple Manufacturers
Chemical Extravaganza
Shop now and save up to 97% on top-quality products for your lab needs.Promo Code: 24126Expires: 2025-02-13
Your input is important to us. Please complete this form to provide feedback related to the content on this product.