Features
1. Easy to use – the visual colorimetric method is simple and suitable for anyone without special training;
2. Fast results – the test can be completed in just 1 minute;
3. Accurate measurements – reliable and consistent results;
4. Unique aluminum tube packaging – with an anti-oxidation coating, which helps increase shelf life (optional feature);
5. Compact and lightweight – easy to carry and store.
Applications
Ideal for industrial, agricultural, laboratory, and on-site testing environments.
Name of test paper: Sulphite Test Paper
Model: LH1023
Brand: Lohand
Measuring Range: 0-10-40-80-180-400 mg/L
Packing
Number of Tests: 100 strips / box
Test Method: Colorimetric Test Paper
Packing: 100 strips / inner plastic box
1 inner plastic box / export carton
Remarks: Optional packaging options include individual aluminum foil or aluminum tubes.
Operation Process
1. Insert the reactive part of the test strip into the sample liquid for 1 second.
2. Wait approximately 15 seconds, then compare the color with the standard color chart.
3. The sensitivity limit is typically 0.2 mg/L. For lower concentrations, a color comparison tube or test kit may be required.
4. The color chart includes 5 different shades for accurate readings.
5. Custom requirements can be fulfilled, with production taking 1–2 weeks.
We have a dedicated team offering professional and reliable pre-sales and after-sales support.
Company Information
Hangzhou Lohand Biological Co., Ltd. is a professional manufacturer and exporter of laboratory instruments and equipment. We own our brand "LOHAND," factory, and R&D center. Our experienced teams in sales, customer service, and quality control ensure fast growth and a strong reputation in the market.
Our main products include refractometers, test papers, pH meters, electrodes, TDS meters, salinity meters, DO meters, ORP meters, conductivity meters, turbidity meters, color comparison tubes, and test kits. Most products come with CE certification. All items can be customized based on your specific needs.
Certification
FAQ
Q1: Why choose us?
A: 1. We have our own factory with a strong R&D and QA team to ensure timely delivery and high-quality products.
2. Our experienced team offers professional and reliable pre- and post-sales service.
3. We provide competitive wholesale prices.
Q2: How do you guarantee quality?
A: One-year warranty from the bill of lading date. If there's a quality issue, we will replace the goods or refund the money.
Q3: Is OEM available?
A: Yes, all products can be customized according to your requirements, including packaging and logo printing.
Q4: Can I buy one piece for testing?
A: Yes, we are happy to send one piece for testing if the model is in stock.
Q5: How do you deliver small orders?
A: For small orders, we prefer international express services like DHL, TNT, or EMS. We also work with a shipping agent that offers discounted rates. For products with removable batteries, shipping costs can be reduced by sending them without the battery.
Q6: What payment methods do you accept?
A: T/T, Western Union, PayPal, etc.
Q7: What if I don’t find the model on the website?
A: Please email us with a description and photo of the product. We develop new models every month, and some may not be uploaded immediately. If it’s a new product for us, we can develop it for you once we have all the details.
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