Homepage | Home | Bookmarke

Changchun Wancheng Bio-Electron Co.,Ltd

  • No Category

Friends links
You are here: Home » Products » Urine Specific Gravity Scale Strips
Urine Specific Gravity Scale Strips
Click image to view full size image
Product: Views:107Urine Specific Gravity Scale Strips 
Unit price: Negotiable
Delivery date: Since the payment date Days delivery
Valid until: Long-term effective
Last updated: 2018-11-03 09:34

1.product Introduction

urine dipstick URS-4SG, for glucose, pH, specific gravity, protein uric test strips.Free samples,OEM packages are offered.

2.product Parameter (specification)


Urine Analysis System

Test time


Place of Origin

Jilin, China (Mainland)

Model Number



Self-testing or professional use


Routine urine test




50/100/125/150 strips per barrel





Brand Name


Package printing

8-color imported ink

Testing items

Glucose,Specific Gravity, pH, Protein

shelf life

2 years




import material from Japan

3.Product feature and application


This test is based on a sequential enzyme reaction. First, glucose oxidase catalyzes the formation of gluconic acid and hydrogen peroxide from the oxidation of glucose. A second enzyme, peroxidase, catalyzes the reaction of hydrogen peroxide with potassium iodide chromogen to oxidize the chromogen to colors ranging from blue through greenish-brown, and brown to dark-brown.

Reactivity of the test decreases as the specific gravity and/or pH of urine increases, and may also vary with temperature. Ascorbic acid (more than 50 mg/dl) and ketone bodies (more than 40mg/dl) may cause a false negative result for a specimen containing a small amount of glucose(100 mg/dl).However, the combinations of such ketone levels and low glucose levels are metabolicallyimprobable.

Specific Gravity

This test is based on the pka change of certain pretreated polyelectrolytes in relation to the ionic concentration. In the presence of an indicator, the color changes from deep blue in urine of low ionic concentration.

Elevated specific gravity readings may be obtained in the presence of moderate quantities (100-700 mg/dl) of protein. Specific gravity is also increased with the glucose concentration in the urine and highly buffered alkaline urines may also cause low reading results.


This test is based on double indicators (methyl red and bromothymol blue), which give a broad range of colors covering the entire urinary pH range. Colors range from orange through greenish-yellow and green to blue.This test indicates the pH values within the range of 5 to 8.5.

Certain drugs, such as those used for hypertension and heart diseases (acetazolamides) may cause an alkaline urine. Excessive urine on the test strip may wash the acid buffer from the neighboring protein reagent onto the pH area and change the pH reading to an acid pH although the urine being tested may originally have been neutral or alkaline. An accurate reading may be influenced by slight variations of pigments in the urine.

ProteinThis test is based on the color change of the indicator tetrabromophenol blue. A positiveeaction is indicated by a color change from yellow through green and then to greenish-blue. The minimum sensitivity of this test is 10 mg/dl of protein in urine. Highly buffered alkaline urines (pH 8.5) may give false negative results. The interpretation of results is also difficult in turbid urine specimens.

How To Test?

1. Remove one strip from the bottle and replace the cap immediately.

2. Immerse the reagent area of the strip in the urine specimen and take it out quickly.

3. Wipe off excess urine against the rim of the specimen container.

4. Read the test results carefully within 60 seconds in a good light and with the test area held near the appropriate color chart on the bottle label. Changes in color that appear only along the edges of the test pads or after moving than 2 minutes have passed are of no diagnostic significance. Results with leukocytes test portion can be read within 120 seconds.

If reading instrumentally, carefully follow the directions given in the appropriate instrument operating manual

4.Production details

5.Product qualification

About our products and service

Advantages 1

High quality ensured : We are real manufacturer,not trading company.

The raw material for strip used we used are imported from Japan, German and UK.

We guarantee all our item are made with finest quality ,all products will be checked by QC dept before delivery to you .

Advantages 2

Company ' s competition:We are the only manufacturer can produce 100*30cm uncut urine test strips in China so far

The world's leading fully automatic production equipment

Advantages 3

Certificate: FDA CE ISO approved

Advantages 4

Service: OEM offer

Rich experience in OEM, our company has provided OEM services for a number of foreign countries and established a solid foundation for brand development with the rich experience. OEM brand, package,box, colorchart, strips quantity we can produce depending on your actual requirements

Advantages 5

FAST Delivery date:Full automated production line makes our product faster (process time).

bulk order: 3-5 days.

Advantages 6

Shipping:We ship goods by UPS/DHL/FEDEX/TNT express which is door to door, takes 3~ 5 days to arrive

2. We can also help you ship by air cargo which you need to go to Air port to takehome, it takes about 2-7 days to arrive

3. If goods are large quantity and you not need so urgently ,you can choose by sea to save some freight cost which takes about one month to arrive

No matter what delivery way ,depending on your actual requirements

Advantages 7

After-sales service : Rapid Test Service assurance

Service tenet: quick and decisive and thoughtful thorough and accurate;

Service objectives: service quality to win customer satisfaction;with the product for testing, and promptly get back to you;

Service principles: products in the course of product issues caused by improper operation, we will provide a solution.

6. Deliver,shipping and serving

1.Free samples are offered.Customize different panels urine strips, bottle label and outer paper box based on customer 's needs.

2.Rapid production & fast delivery time.

3.You can payment by T/T,paypal,western union and alibaba trade assurance order is also acceptable.

4.Regarding the shipment,We ship goods by UPS/DHL/FEDEX/TNT express which is door to door,takes 3~ 5 days to arrive;We can also help you ship by air cargo which you need to go to Air port to take home, it takes about 2-7 days to arrive;If goods are large quantity and you not need so urgently ,you can choose by sea to save some freight cost which takes about one month to arrive.