Applicability of Industrial Ceramics: An important basic standard (also a method standard) for the refractory industry in China. To make it better applicable, it has absorbed opinions from various parties in the drafting and validation process, and fully considered the national conditions and reality in China. Use habits. The main features of the new standard are the classification and definition of the appearance defects of refractory products. The adoption of the term mainly originates from international standards. There have been trade-offs in the introduction of international standards ISO 12678, which follow the prevailing international standard model and supplement the provisions of the inspection report. Not only can the inspection of refractory products be standardized, but it is also a manifestation of the adoption of international standard work patterns, which can better connect with international practices. The main content and practical rules of the new standard. About the General Provisions The General Principles recognize the same status of the two inspection methods for the same inspection item in the original standard, but stipulate that an inspection method should be determined according to the product technical requirements. For example, the twisted inspection method specifies two new standards, the steel flat wedge method and the flat feeler gauge method. International standards vary from the representation method of the twisted value to the inspection method and the size of the diagonal line. The determination of the twist value and the inspection method of the Chinese product standard are related to the maximum size of the product. The new inspection standards that affect the defects in the quality of kiln masonry stipulate the inspection methods of size, wedge difference, and distortion. For the measurement of the dimensions, a caliper with an accuracy of 0.1 mm was added. It was stipulated that when rejecting a batch of bricks measured with a steel tape measure, a caliper was used for re-inspection. Re-inspection is limited to the range of over-sized bricks, and the caliper re-inspection results should be rounded off to the tolerance accuracy required by the product standard. The measurement part of the size is specified to take readings along the centerline of the brick surface and is limited to measurements within 10mm. The corrections and adjustments have been made to the dimensions of the middle third of each side specified in the original standard. Hand Held Metal Detector,Handheld Body Scanner,Universal Handheld Metal Detectors,Aluminum Metal Detector Shenzhen MCD Electronics Co., Ltd. , https://www.gdmcd.com