Precautions for the use of AATCC stained gray card
It is used to evaluate the discoloration and staining in the color fastness test. It is divided into 1-5 grades, with half-step increments, and is packed in a packaging sleeve. This series of gray cards are internationally accepted 5 grades and 9 grades. The gray scale of the gray card is made with the colorimetric data provided by ISO, AATCC, and GB through careful color matching. The colorimetric data of each file is measured with an imported high-precision spectrophotometer and corrected with the colorimetric transmission standard of the Chinese Academy of Metrology to ensure that its grayscale data is consistent with international standards. Applicable fields: As the gray card is calibrated with the colorimetric data standards specified by the international standard ISO, American standard AATCC and my country's national standard GB, the color fastness grade evaluated by the gray card is consistent with the international standards. This gray card is suitable for the color fastness rating of textiles in GB, ISO, AATCC, DIN, BS, JIS, EN standards. Precautions for use 1. Keep the gray card clean. 2. Always check whether there are fingerprints such as fingers on the gray card. 3. If it is found that the imprint has interfered with the rating, the gray card must be replaced. 4. Try to avoid mechanical damage caused by touching. 5. If mechanical damage interferes with the rating, it should be replaced. 6. After the gray card is used up, put it into the sleeve.
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The Heat Contact Machine GT-C101 is a specialized testing instrument designed for evaluating the heat resistance and thermal protective performance of gloves, protective clothing, and other heat-resistant materials used in high-temperature environments. In industries such as smelting, casting, welding, and glass manufacturing, workers are frequently exposed to intense heat, making accurate testing of contact heat resistance essential for ensuring safety and compliance.
GT-C101 simulates real working conditions by measuring heat transfer delay and thermal transmission under instant contact with high-temperature surfaces. Fully compliant with EN 407, EN 702, and ISO 12127-1 standards, this machine provides precise, repeatable data for manufacturers, laboratories, and research institutions. With high-temperature capability up to 500°C, advanced calorimetry, digital monitoring, and adjustable contact speed, the Heat Contact Machine GT-C101 is an indispensable tool for developing and certifying next-generation PPE and heat-insulation materials.
Personal protective equipment must meet specific performance requirements before it can be used in demanding workplace environments. ISO, EN, and ASTM standards provide important test methods and performance requirements for different PPE categories. However, the applicable standard depends on the product, intended application, target market, and specific protection requirements.
This guide explains the role of ISO, EN, and ASTM standards in PPE testing and introduces common requirements for safety footwear, protective gloves, protective clothing, masks, and safety helmets. It also explains how laboratories can select suitable PPE testing equipment according to the applicable test method.
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