Selection of clean gowning system During the produce and operate in the cleanroom,the human body is the maximal source for particle counts, the aim for wearing clean clothes is maximum reduce the particle counts contamination and prevent electrostatic from human body.At the same time ensure cleaning clothes would not be the source of particle counts,this need to select the material with static dissipative performance and fibre uneasily falling.The clothes must be washed with pure water of EDI-pure water,packed vacuum and then used in cleanroom. In clean produce environment,particle counts on workers are also related to worn clean clothes type and A.According to testing,particle counts on clean clothes is 1/5 to 1/3 of general clothes. B.Particle counts on cotton clothes are 10 tims higher than general clothes. ISO14644-1 | ISO1,2,3 | ISO4 | ISO5 | ISO6 | ISO7 | ISO8,9 | Smock | Not use | Not use | Not use | Depends on situation | Use | Use | Suit | Depends on situation | Depends on situation | Depends on situation | Depends on situation | Depends on situation | Depends on situation | Jump suit | Use | Use | Use | Use | Depends on situation | Depends on situation | Shoe cover | Not use | Not use | Not use | Depends on situation | Use | Use | Over shoes | Use | Use | Use | Use | Depends on situation | Depends on situation | Hair mask | Use | Use | Use | Use | Use | Use | Head mask | Use | Use | Use | Depends on situation | Depends on situation | Depends on situation | Mask | Use | Use | Use | Depends on situation | Depends on situation | Depends on situation | Gloves | Use | Use | Depends on situation | Depends on situation | Depends on situation | Depends on situation | Underdress | Use | Use | Depends on situation | Depends on situation | Depends on situation | Depends on situation | Changes tims | Every time | Every time | Once/day | Twice to three times/day | Twice/week | Twice/week |
Exchange cycle and repair on clean clothes . Usually,cleaning clothes wash once to twice per week,different cleanroom with different class see table. . With recycle washing and using , should check and repair in off-line, tear-off, fabric destroy, and so on. . With washing 50 times to 100 times,should check whether it should be discard. Size of cleanroom garment name | specification | XS | S | M | L | XL | XXL | XXXL | Jump suit | behind size±1.5 | 61 | 64 | 67 | 70 | 73 | 76 | 79 | | circumference ±2.5 | 98 | 104 | 110 | 116 | 122 | 128 | 134 | | hang shoulder ±1.2 | 54 | 56.5 | 59 | 61.5 | 64 | 66.5 | 69 | | show shoulder ±1.5 | 66 | 69.5 | 73 | 76.5 | 80 | 83.5 | 87 | | suitable statuer | 150-155 | 155-160 | 160-165 | 165-170 | 170-175 | 175-180 | 180-185 |
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