HI70004C มีค่า pH 4.01 ±0.01 pH เหมาะสำหรับลูกค้าที่ต้องการน้ำยาสอบเทียบเครื่องวัดกรด-ด่าง ที่มีคุณภาพราคาถูก น้ำยามาตรฐานสอบเทียบ HI70004C มีใบรับรองการวิเคราะห์สอบเทียบจาก Hanna (ใบรับรอง Certification) และระบุวันที่หมดอายุไว้อย่างชัดเจนบนฉลาก (1 กล่องประกอบด้วยน้ำยามาตรฐานจำนวน 25 ซอง แต่ละซองมีขนาด 20mL) เหมาะสำหรับพกพาไปใช้งานนอกสถานที่และเหมาะกับงานในภาคสนาม
HI70004C is a premium quality pH 4.01 calibration buffer that is NIST traceable and supplied with a Certificate of Analysis. Each sachet has the lot number and expiration date stamped on it and is made of light block foil ensuring freshness each time one is opened.
Hanna’s line of technical calibration buffers have been specially formulated to have an expiration of 5 years from the date of manufacture for an unopened sachet. The HI70004C is for 25 sachets containing 20 mL of buffer.
- Supplied with Certificate of Analysis
- Accuracy of +/- 0.01 pH @ 25°C
- Temperature chart of the actual pH value at various temperatures printed on each sachet
The pH 4.01 solution is available in quick and easy to use 20ml sachets, one of the most commonly used solutions. It is extremely stable and represents the mid-way point in the acid range of the pH scale – ideal for those requiring an accurate acid reading, particularly those working in water purification plants, the food industry, and wherever the pH is expected to be acidic.
The single dose sachets are really handy with each sealed sachet holding just the right amount of solution. Each time a meter or electrode is calibrated using a Hanna sachets, it is like using a newly opened bottle of solution
Benefits of individual packaging
- Ideal for users who do not calibrate frequently
- Ideal for field use due to portability
- Every sachet is as fresh as the day it was packaged
- Light block packaging prevents oxidation from UV light that could alter the buffer value.
Buffer solutions should be stored at 25 C, away from direct sunlight for accurate readings.
To correctly maintain your meter/electrode, we highly recommend use of a Hanna cleaning solution, as well as a buffer, for maximum performance every time. pH4, along with pH7, can also be used as an emergency storage solution.
Hanna solutions are prepared, ready-to-use, according to precise formulas and standardized in accordance with the National Institute of Standards and Technology (NIST) to ensure quality and accuracy.
All solutions show a batch number, an expiry date, and the correlation table between pH and temperature. A certificate of analysis is available on request. All bottled solutions are sealed with an air tight, tamper-proof seal to prevent any Carbon Dioxide from entering and causing a change in the pH buffer value.
Specification HI70004C
- Accuracy : Technical ±0.01 pH
- pH Value @25°C : 4.01
- Package : Sachets
- Size : 20 mL (25 Sachets in BOX)
- Certificate of Analysis : Yes
HI70004C Certificate of Analysis
- Product code
- Lot number
- Mean lot value
- SRMs that were used
- Manufacturing date
- Expiration date
HI70004C มีใบรับรองการสอบเทียบ Certification
