Pencil hardness test has always been a very important test category for coating testing. Early experimenters passed different pencil tests manually, and even the standard page recognized it. However, with the improvement of users' quality requirements, it is rare to do the pencil scratch test by hand, and it is replaced by an economical, accurate and effective method - using a pencil Hardness Tester. The GB/T6739 standard has gone through the 1996 edition to the current 2006 edition. The difference is that the weight of the pencil Hardness Tester has changed from 1000g to 750g, which is closer to the international standard. Therefore, what we recommend in this issue is the pencil Hardness Tester with a load of 750g, which is the mainstream of NBCHAO Mall.
A more obvious feature is that domestic brands are indeed identical in appearance design of pencil Hardness Testers, which are much more beautiful than foreign ones. Of course, accuracy is an important indicator of an instrument. Beichao provides TQC from the Netherlands, a major international manufacturer, and also has a modern environment from a good domestic brand. There are all kinds of high-end and low-end pencil Hardness Testers. For a detailed comparison, you can refer to the comparison table of pencil Hardness Testers provided by NBCHAO's "Check Instrument" system , as shown in the following table:
| Compare category | QHQ-A (750g) | PPH-I 750G | VF2378 | 293 | SH720N | AS-120P |
| product picture |  |  |  |  |  |  |
| brand | Jinfulun | modern environment | TQC | Yi Lixin | Xinying | An Miao |
| place of origin | CHINA | CHINA | Netherlands | Germany | U.K. | CHINA |
| Model comparison | ||||||
| load | 750g | 750g | 750g | 750g | 750g | 500/750/1000g |
| hardness level | Moderate | Moderate | Moderate | Moderate | Moderate | can be |
| grade | mid-range | mid-range | upscale | upscale | mid-range | mid-range |
| Specification comparison | ||||||
| Load (g) | 750g | 750g | 750g | 750g | 750 | 1000g /750g /500g |
| Applicable standard | GB/T5739-1996 | National standard GB/T6739-2006 | ISO 15184, ASTM D3363, JIS K-5600, ECCA-T4-1, BS 3900-E19, SNV 37113, SIS 184187, NEN 5350, MIL C 27 227 with calibration certificate | ISO 15184 NEN 5350 SNV 37113 SIS 184187 ECCA T4 | ASTM D 3363-05, ECCA T4, BS EN 13523-4, ISO 15184, JIS K5600-5-4 | |
| Calibration certificate | have | |||||
| material | Stainless steel | Stainless steel | Stainless steel | Stainless steel | ||
| Dimensions (mm) | 105 x 50 x 50 | |||||
| standard pencil | A set of Chinese pencils (13 pieces) | 13 advanced drawing pencils (6H～6B) | 8B, 7B, 6B, 5B, 4B, 3B, 2B, B, HB, F, H, 2H, 3H, 4H, 5H, 6H, 7H, 8H, 9H, 10H | 17 grades of hardness pencils from 6B~9H | 9B to 9H (20 pieces) | (6B-6H) |
| Friendly reminder: This page is a comparison of QHQ-A (750g), PPH-I 750G, VF2378, 293, SH720N, AS-120P pencil Hardness Tester. Beichao only provides you with the similarities and specifications of this product under the model and specification. difference. If you want to know more about the similarities and differences of QHQ-A (750g), PPH-I 750G, VF2378, 293, SH720N, AS-120P pencil Hardness Tester, please read the official information in detail. | ||||||
