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The standard governing data protection - DIN 32757 - is a useful aid in determining shred size requirements. It classifies data according to the information they contain, and groups them in five classes which can be summarily described as follow:
Security Level | Examples of Documents | Shred Size | Shredded Material |
|---|---|---|---|
Level 1 - General | General paperwork, old documents | ½ inch Strip |
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Level 2 - Internal | For internal documents such as notes, invoices, photo copies, computer print outs | ¼ inch Strip |
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Level 3 - Confidential | For confidential documents, such as company internal documents, personal data | 1/8 inch Strip |
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Level 4 - Secret | For secret documents, such as files for the safe guard of one’s livelihood or company existence | 1/12 x 9/16 |
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Level 5 – Top Secret | Espionage-safe or extremely high demands of security as in military or government departments | 1/32 x 7/16 |
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