No | Safety measures | Safety level | | | |
| | 1 | 2 | 3 | 4 |
| Building |
|
|
|
|
1 | Separate work area | – – – – | P – – – | P L G V | P L G V |
2 | Restricted access to the work area | – – – – | P L G V | P L G V | P L G V |
3 | Animal rooms separated by lockable doors | – – – V Only in installations with vertebrates | – – – V Only in installations with vertebrates | – – – V | – – – V |
4 | Access to work area via airlock (separate room). The inside of the airlock must be separated from the outside by changing facilities, and preferably by lockable doors. | – – – – | – – – – | [P] [L] [G] [V] | P L G V Airlock doors lockable on both sides |
5 | Shower area in airlock | – – – – | – – – – | P L G V Depending on the risk this measure may be omitted without authorisation from the competent federal offices. | [P] [L] [G] [V] |
6 | Facilities for personal decontamination in the work area | – – – – | P L G V | P L G V | P L G V |
7 | Observation window or other means of monitoring the work area | – – – – | – – – – | [P] [L] [G] [V] | P L G V |
8 | Biohazard warning sign | – – – – | P L G V | P L G V | P L G V |
9 | Rooms with easily cleanable floors | P L – V | P L G V | P L G V | P L G V |
10 | Rooms with easily cleanable walls | – – – – | – – – – | P L G V | P L G V |
11 | Work area sealed so that fumigation is possible | – – – – | [P] – – – | [P] [L] [G] [V] | P L G V |
12 | Work area under negative air pressure with respect to the immediate surroundings | – – – – | – – – – | [P] [L] [G] [V] | P L G V |
13 | Air supply to the work area via HEPA filter | – – – – | – – – – | [P] – – – | [P] [L] [G] [V] |
14 | Exhaust air outlet from the work area via HEPA filter | – – – – | – – – – | P [L] [G] [V] | P L G V For viruses that are not retained by HEPA filters, additional measures are required. |
15 | Microorganisms must be held in a primary contained system that physically separates the process from the rest of the work area. This primary contained system must be entirely within the work area. | – – – – | P – – – | P – – – | P – – – |
16 | The work area must be constructed so that a release of the entire contents of the primary contained system can be captured and retained. | P – – – | P – – – | P – – – | P – – – |
17 | Requirements for the air outlet from the primary contained system | – – – – | P – – – Minimise any escape of organisms | P – – – Prevent any escape of organisms | P – – – Prevent any escape of organisms |
18 | The work area must be ventilated so as to minimise the contamination of the air with organisms. | – – – – | [P] – – – | [P] – – – | P – – – |
| Equipment |
|
|
|
|
19 | Surfaces resistant to water, acids, alkalis, solvents, disinfectants and decontaminants | P L G V Work bench | P L G V Work bench | P L G V Work bench and floor | P L G V Work bench, floor, ceiling and walls |
20 | Work area with complete, independent equipment | – – – – | – – – – | [P] [L] [G] [V] | P L G V |
21 | Microbiological safety cabinet (MSC) when working with microorganisms | – – – – | [P] [L] [G] [V] | P L G V | P L G V MSC III including airlock entry and exit system or MSC II with full protection; full protection may be omitted for activities with animal and plant pathogens if authorised by the competent federal office |
22 | Measures against aerosol formation and dissemination | – – – – | P L G V Minimise aerosol dissemination | P L G V Prevent aerosol dissemination | P L G V Prevent aerosol dissemination |
23 | ... | | | | |
24 | For the animal species concerned, suitable systems for keeping animals (e.g. cages), that are easily decontaminated | – – – V Washable | – – – V Decontaminable | – – – V Decontaminable | – – – V Decontaminable |
25 | Filter on isolation chambers (Isolation chamber = transparent container in which the animal is kept when inside or outside a cage) or isolation rooms (for large animals) | – – – – | – – – [V] | – – – V | – – – V |
26 | Requirements for seals on primary contained systems | – – – – | P – – – Minimise any escape of organisms | P – – – Prevent any escape of organisms | P – – – Prevent any escape of organisms |
| Work Organisation |
|
|
|
|
27 | Suitable clothing for the work area | P L G V For laboratory activities: laboratory clothing | P L G V For laboratory activities: laboratory clothing | P L G V Suitable protective clothing and, if applicable, shoes | P L G V Change all clothing and shoes before entering or leaving |
28 | Personal safety equipment Personal safety measures must be adapted to the activity and the organisms used. | P L G V | P L G V | P L G V | P L G V |
29 | Regular disinfection of the workplaces | – – – – | P L G V | P L G V | P L G V |
30 | Inactivation of microorganisms in the outflow of sinks, pipes and showers | – – – – | – – – – | [P] [L] [G] [V] | P L G V |
31 | Escape of contaminated waste water | – – [G] – Minimise | – – [G] – Minimise | – – G – Prevent | – – G – Prevent |
32 | Escape of reproductive plant parts in the air or via vectors | – – [G] – Minimise | – – [G] – Minimise | – – G – Prevent | – – G – Prevent |
33 | ... | | | | |
34 | Inactivation of large volumes of culture medium prior to its removal from the primary contained system | – – – – | P – – – | P – – – | P – – – |
35 | Minimise or prevent the escape of organisms during internal transport between various work areas | P L G V Minimise | P L G V Minimise | P L G V Prevent | P L G V Prevent |
36 | Inactivation of the microorganisms in contaminated material, in waste and on contaminated apparatus, from animals, plants and process fluid in production activities ‘P’. | P L G V Harmless disposal; inactivation of genetically modified microorganisms on site or disposal as hazardous waste; Deactivation methods are permissible if their effectiveness is proven. | [P] [L] [G] [V] Autoclaving in the building, may take place outside the building if approval given by the federal office responsible; other equivalent deactivation methods are permissible if their effectiveness is proven; may be disposed of as hazardous waste: a. contaminated material, animal cadavers, diagnostic samples; b. solid cultures, if approval given by the federal office responsible | [P] [L] [G] [V] Autoclaving in the work area, may take place elsewhere in the building if approval given by the federal office responsible; other equivalent deactivation methods are permissible if validated; the autoclave may be omitted if approval given by the federal office responsible. | P L G V Deactivation and pass-through autoclave in work area |