Calibration and ISO Standards

Calibration and ISO standards post will help you about calibration requirements in ISO Standards for ISO Certification on various standards. Specially for management system standard ie ISO 9001; it is mandatory to do calibration.

ISO 9001:2015 Clause

Calibration for monitoring devices is very important to get accurate reading from the machine, equipment, tools and devices. In the clause of ISO 9001 it is written about the calibration of monitoring devices or tools. Now it is a question which tools should be calibrated? Actually it depends on factory activities. However most common measuring tools like measurement tape, light box, slide caliper, micro meter, weight scale, digital weight scale, thermometer, moisture meter, hygrometer, beaker, cylinder, temperature gauge, volt meter, ampere meter, oscilloscope etc.

ISO 14001:2015 and 45001:2018 Clause 9.1 Monitoring and measurement

In Environmental Management System standard and in OH&S management system standard it is also told about calibration for  measurement devices Like Carbon emission level  measurement tool, PH meter, The organization shall establish, implement and maintain a procedure(s) to monitor and measure, on a regular basis, the key characteristics of its operations that can have a significant environmental impact. The procedure(s) shall include the documenting of information to monitor performance, applicable operational controls and conformity with the organization’s environmental objectives and targets.
The organization shall ensure that calibrated or verified monitoring and measurement equipment is used and maintained and shall retain associated records

The organisation must ensure that monitoring and measurement equipment such as sampling pumps, noise monitors, toxic gas detection equipment, is calibrated or verified and that it is correctly used and maintained. It is told in ISO 45001:2018

Where from calibration can be done?

Calibration can be done from 17025 accredited lab. There are few accredited labs in Dhaka which are accredited by  NABL.  Only accredited lab can ensure that your device is OK. Only accredited lab can confirm that the reading of the device is accurate  They follow international guide line to calibrate your devices. Usually once in a year calibration should be done.

What you should know before calibration?

You should check if the lab has accreditation certificate to calibrate the specific item. There may some tricks about it. So, verify first if the calibration lab has approval to calibrate the device or equipment. And if the master device is calibrated from accreditation body.

To read in details you may visit

Instrument Calibration

Instrument calibration

Calibrated items checking


Instrument calibration is necessary to check your instrument if it is working properly or not. To get accurate reading from your instrument or devices it is very much important to check those items frequently. It is common practice for those compaines who want to produce or supply quality products in their respective industries.

Various kinds of industries like textile, garments, press, printing, electrical and electronic, hardware, spare parts manufacturers and any kind of manufacturing companies where your machines or instruments show a numerical digits that should be calibrated.

Users of those items should check sometimes it is working properly or not. Specially monitoring devices like thermometer, vernier caliper, weight scale, hygometer, digital meter, digital balance, pressure gauge, voltmeter, etc should be checked.

Instrument from garments like fabric inspection machine, gsm balance, light box, gsm cutter, heat press machine, metal detector machine, washing machine, micrometer etc should be calibrated at least once in a year.

Calibration for instrument is need for both supplier and buyers satisfaction. It ensures the accurate reading of the output product. That’s why it is mandatory for garments and textile manufacturers. It confirms that they are giving right products to their buyers.

Calibration is also required for pharmaceutical industry. Hardness tester calibration, flow meter calibration, digital  micrometer calibration, digital weight scale calibration etc are very common and regular job for Pharmaceutical industries. To maintain medicine’s quality and quantity it is mandatory for pharmaceutical industry for using calibrated instrument.

There are many calibration labs in Bangladesh but all of them are not ISO 17025 Certified. ISO 17025 Certified means the lab is following international standard which are accepted world wide.

The calibration cost is higher in Bangladesh because a very few companies are working in this sector. So, they take high money from the companies for calibration services. Sometimes  it costs the higher than  the purchase price of the devices.


It is told in almost all management system standards about calibration.  It is told in clause number of 9001:2015 standard and at clause no 9.1.1 of 14001 standards about using calibrated monitoring devices. So, it is mandatory for ISO Certification and ISO Certified companies.

Doing calibration is a matter of headache of many manufactures in Bangladesh. Because the calibration cost is very high. That’s why they do not like to calibrate their devices or instrument. But for buyers requirements it is done by them any how.

Considering the disadvantages of SME organization Advanced Assessment Services(AAS) has started to work with joint venture with Indian well known and NABL Accredited and ISO 17025 Certified lab recently in Bangladesh. You can get much more cheap price from AAS for instrument calibration in  Bangladesh.  To contact for instrument calibration please call 017 42 12 52 32  or  you may visit this link    to contact.