Center for
NanoFabrication
Syntheses
Access
Safety
Cleaning procedures |
Cleaning Procedures
Personal Actions Typically Prohibited in
Cleanroom
- Fast motions such as running, walking fast or horseplay.
- Sitting or leaning on equipment or work surfaces.
- Writing on equipment or garments.
- Removal of items from beneath the cleanroom garments.
- Wearing the cleanroom garment outside the cleanroom.
- Wearing torn or soiled garments.
NO ONE who is physically ill, especially with
respiratory or stomach disorders, may enter a sterile room.
General Cleanroom Regulations
Below is a list of general regulations recommended as a minimum for the
successful operation of a cleanroom. All users and professional cleaning
personnel should be aware and follow these regulations at all times.
- All personal items such as keys, watches, rings, matches, lighters
and cigarettes should be stored in the personal locker outside the
gowning room.
- Valuable personal items such as wallets may be permitted in the
cleanroom provided they are NEVER removed from beneath the cleanroom
garments.
- NO eating, smoking or gum chewing allowed inside the cleanroom.
- Only garments approved for the cleanroom should be worn when
entering.
- NO cosmetics shall be worn in the cleanrooms. This includes: rouge,
lipstick, eye shadow, eyebrow pencil, mascara, eye liner, false eye
lashes, fingernail polish, hair spray, mousse, or the heavy use of
aerosols, after shaves and perfumes.
- Only approved cleanroom paper shall be allowed in the cleanroom.
- Approved ball point pens shall be the only writing tool used.
- ses of paper or fabric towels are prohibited. Use of hand dryers
equipped with HEPA filters is suggested.
- Gloves or finger cots should not be allowed to touch any item or
surface that has not been thoroughly cleaned.
- Only approved gloves, finger cots (powder-free), pliers, tweezers
should be used to handle product. Finger prints can be a major source of
contamination on some products.
- Solvent contact with the bare skin should be avoided. They can
remove skin oils and increase skin flaking.
- Approved skin lotions or lanolin based soaps are sometimes allowed.
These can reduce skin flaking.
- All tools, containers and fixtures used in the cleaning process
should be cleaned to the same degree as the cleanroom surfaces. All of
these items are a source of contamination.
- NO tool should be allowed to rest on the surface of a bench or
table. It should be place on a cleanroom wiper.
- Only cleanroom approved wipers are allowed to be used. The wipers
must be approved for the Class of cleanroom being cleaned.
- s introduced into a sterile facility must be subjected to stringent
sterilization prior to entrance.
Cleaning Procedures for a Class 1000 Section
Below is a cleaning program in a Class 1000 (Bio&Metrology) section of
the NCS cleanroom.
Description of Work |
Frequency |
Change tacky mats Every |
2 hours |
Wet mop with approved mop, cleaner & DI water |
2 times per shift |
Dust mop (if allowed) |
2 times per shift |
Remove trash, sweep, mop with appropriate cleaner
wipe down tables and coffee area, clean walls and recycle cans |
1 time per shift |
Vacuum entry mats, sweep and mop floors |
1 time per shift |
Mop floor with pre-burnish cleaner and tap water |
1 time per shift |
Remove trash. Always wear gloves. Never take waste
containers inside cleanrooms. |
1 time per shift |
Wet mop floors |
1 time per shift |
Remove acid and solvent trash |
1 time per shift |
Clean and replenish dispenser in all restrooms |
3 times per week |
Vacuum floor (if allowed) |
2 times per week |
Clean stainless steel pass throughs with s/s cleaner
and appropriate wipes |
1 time per week |
Cleaning Procedures for a Class 100 Cleanroom
Procedure |
Frequency |
Trash removal |
Once daily |
Mop walkways |
Once a week |
Wipe down horizontal surfaces |
Once monthly |
Pull tacky mats |
Every 2 hours |
Mop and trash removal |
Once daily |
Wipe down walls and trim |
Once a week |
Mop and trash removal |
Once daily |
Wipe walls and trim |
Once a week |
Mop |
Twice a shift |
Wipe walls and trim |
Once a week |
Vacuum |
Once monthly |
Mop and trash removal |
Once per shift |
Wipe down walls, windows, doors,
trim, showers, passthroughs and fire extinguishers. |
Once a week |
|