Technical Exchange

What are the management regulations of the laboratory?

In order to standardize laboratory management and improve the accuracy and effectiveness of laboratory test results, these regulations are formulated in accordance with XX Company's "Laboratory Functions" and the company's actual conditions. All inspection and measuring instruments put into use must be verified and calibrated according to relevant national technical specifications or standards before use. Only instruments that have been verified and calibrated can be put into use. In the event of a malfunction of the detection instrument, it is forbidden to disassemble the instrument at will and repair it by yourself, as it will be repaired by professionals or sent out for repair. The testing equipment should be kept level and tidy when placed, and should be returned in time after use. Regularly maintain and maintain the testing equipment, such as lubricating oil, cleaning up debris, dirt, and dust in the instrument, and putting a protective cover on or putting it in a protective box, etc. It is necessary to protect the national standards, relevant technical specifications, and operating procedures of various instruments for various project indicators; after reading, organize them and return them to their original places and archive them in a unified manner. The testing personnel must be trained and qualified to obtain the job certificate before they can operate the instruments. Other personnel are not allowed to operate the instruments at will before they are on the job without the training or written permission, otherwise they shall be fully responsible for all the consequences caused by them. Operators should strictly follow various instrument operating procedures or manuals and precautions to prevent illegal operations, and not arbitrarily adjust the accuracy of the calibrated testing instrument. After the sample is tested, the test data and results shall be issued in time in accordance with relevant technical specifications or standard requirements and procedures, and the data and results shall be accurate, objective, and truthful. The test samples and the samples after the test are stored in an orderly manner, so that when necessary, the source or the test objects are provided as evidence for use only. Protect the confidentiality and intellectual property rights of the tested samples and related materials, and strictly abide by the company's various rules and regulations and professional ethics.

What are the requirements for a constant temperature and humidity laboratory?

Constant temperature and humidity laboratory is to make a certain laboratory through certain special equipment and technical methods to make the indoor temperature and humidity meet the requirements of a certain humidity control and test standard atmosphere. Constant temperature and humidity laboratory is the infrastructure for product quality inspection and control of production enterprises and commodity quality inspection in the field of circulation. Constant temperature and humidity laboratory is widely used in cotton spinning, wool spinning, chemical fiber, paper, packaging, tobacco production enterprises and quality inspection, fiber inspection and other departments, in accordance with the relevant ISO and GB standards, textiles, textile raw materials, paper, paper products and cartons, etc. The inspection of the qualitative physical items of the commodity must be carried out under standard atmospheric conditions. The standard atmosphere for inspection of textiles and textile raw materials is in accordance with ISO139 and GB6529 standards, with a temperature of 20±2 ℃ and a relative humidity of 65%±2%; the standard atmosphere for inspection of paper, paper products and cartons is in accordance with ISO187 and GB10739 standards, with a temperature of 23 ±1℃, relative humidity 50%±2%. In addition to the constant temperature and humidity laboratory with regular temperature and humidity, there are other special requirements such as low temperature 5-18℃, high temperature 30-80℃, relative humidity less than 40%RH, low humidity, and relative humidity higher than 80%RH. Constant temperature and humidity laboratory.

Why do textile companies set up laboratories?

1. The key links and methods of internal product quality monitoring of the enterprise, including process control and final product quality inspection. 2. The display window of the company's external image, improve the company's credibility, and enhance the market's confidence in the company. 3. Seek recognition from well-known institutions and international buyers to reduce testing costs. 4. Shorten production and R&D cycles and improve corporate efficiency.

Daily maintenance of electronic fabric strength machine

1 Every time you turn on the machine and start a new set of tests, you must press the reset button to restart the instrument, otherwise the data processing is incorrect.    2 When the instrument is reset and the zero key is pressed, it includes the function of automatically clearing (tare) the force sensor. Please note that when starting the instrument, keep the upper gripper without any additional force except its own weight. Otherwise, Inaccurate peeling will result in inaccurate testing.    3 The instrument input setting parameters should be carried out before the start of a set of tests, otherwise, it will cause data processing errors.    4 The instrument has been calibrated for the force display before leaving the factory. Non-professional verification and maintenance personnel shall not calibrate arbitrarily, otherwise the instrument will be inaccurate in force measurement.    5 While waiting for the test and calibration display status, the force sensor can be cleared. After pressing the zero key, you should wait 2 seconds before starting the test.    6 In the automatic control program of the instrument, there is a test value judgment program, which can detect obviously wrong test data. (Including the measured value after the sensor zero drift seriously and the impact strength value) will be automatically deleted; please note that if the instrument automatically deletes the current test value several times in a row, it is generally that the cleared value has shifted, and you should press clear After resetting the key to zero again, continue the test.    7 The maximum allowable setting of the sample value and the number of sample types of this machine is limited to 255 times. At the same time, the number of samples × the number of samples is less than or equal to 500, and the computer automatically judges whether the memory is overflowing and prompts with text on the LCD screen.    8 If you want to print the test curve, you should print it immediately after the current test is over, that is, only print the current test curve. If the test is the last test in the group, you should print the curve first, and then print the report. .    9 Note that the force of the upper clamp should be less than the full-scale value of the instrument. Do not allow the upper clamp to withstand the impact of the force, otherwise the load cell may be easily damaged.    10 Do a good job in cleaning and maintenance of the instrument, and add lubricating oil to the lead screw and guide rod in time.    11 Do the verification of the instrument regularly to ensure the accuracy of the measured value of the instrument.    12 Non-professional maintenance and verification personnel are not allowed to disassemble the instrument, and must carry out the measurement performance verification after each disassembly and repair, so as to avoid the phenomenon of instrument inaccuracy.    13 If there is a sudden failure during operation, it can be stopped urgently and must be restarted.

Precautions for textile special electronic balance

2. Weighing instruments: electronic balance (1) The balance should be placed in an environment far away from seismic sources, corrosive gases, and suitable temperature and humidity. The workbench should be stable and reliable, and avoid direct sunlight, air disturbance, or single-sided heating or cooling. Discoloration silica gel should be placed in the balance cover, and acidic desiccant should not be used. (2) The weighed object should be placed in the center of the balance pan, and should not exceed the maximum weighing capacity of the balance. Pay attention to handle with care when handling objects. (3) If the user finds that the balance is inaccurate or abnormal, he should stop using it and calibrate it in time or use it after passing inspection and repair.

How to maintain the equipment?

1. Operators and maintenance (overhaul) personnel should use the attitude of masters, do correct use, careful maintenance, and maintain the equipment with a serious attitude and scientific methods. Strictly implement the post responsibility system and implement the equipment package mechanism (each duty safety officer manages the instruments and equipment in the area in which they are responsible) to ensure that the equipment in use is intact.