| name | preserve-materials |
| locale | wenyan |
| source_locale | en |
| source_commit | 82c77053 |
| translator | Julius Brussee homage — caveman |
| translation_date | 2026-04-26 |
| description | 保存與保護圖書館與檔案之材。含環境控制（溫、濕、光）、操作程序、修書術 （頁裂、書背鬆、霉斑）、無酸貯、為保存之數位化、災後復原謀。 立新或既藏之保存修、材有壞徵、設貯之環境控、謀數位化以保脆原、 或為館藏立災後復原謀時用之。
|
| license | MIT |
| allowed-tools | Read Grep Glob WebFetch WebSearch |
| metadata | {"author":"Philipp Thoss","version":"1.0","domain":"library-science","complexity":"advanced","language":"natural","tags":"library-science, preservation, conservation, book-repair, archival, acid-free, digitization"} |
保存材料
以環境控制、適操、修術、災備保存與保護圖書與檔案之材。
用時
- 立新或既藏之保存修
- 材有壞徵（霉斑、脆、訂鬆）
- 需設貯或展區之環境控
- 謀數位化以保脆原
- 為館或檔案需災後復原謀
入
- 必要：欲保之材（書、稿、照、圖、媒）
- 必要：當前貯況（溫、濕、光曝）
- 可選：保存料具之預算
- 可選：數位化具（掃、相、軟）
- 可選：既藏之況察
法
第一步：察當前況
察環境與材以立基線。
Environmental Assessment Checklist:
+-----------------------+------------------+---------------------+
| Factor | Ideal Range | Measure With |
+-----------------------+------------------+---------------------+
| Temperature | 18-21°C | Thermometer with |
| | (65-70°F) | min/max recording |
+-----------------------+------------------+---------------------+
| Relative Humidity | 30-50% RH | Hygrometer or |
| | | datalogger |
+-----------------------+------------------+---------------------+
| Light (storage) | <50 lux | Light meter |
| | No UV | |
+-----------------------+------------------+---------------------+
| Light (display) | <200 lux | Light meter + |
| | UV filtered | UV filter readings |
+-----------------------+------------------+---------------------+
| Air quality | Low dust, no | Visual inspection, |
| | pollutants | HVAC filter check |
+-----------------------+------------------+---------------------+
Material Condition Survey (sample 10% of collection):
- Excellent: No visible damage, binding intact, pages flexible
- Good: Minor wear, slight yellowing, binding sound
- Fair: Moderate foxing, some loose pages, spine cracked
- Poor: Brittle pages, detached covers, active mold or pest damage
- Critical: Pages fragmenting, structural failure, immediate intervention needed
Record the percentage in each condition category.
得：環境況與材健之基線數，識即時險與長期趨。
敗則：若監測具不可得，用五金店之基本溫濕計。粗數遠勝無數。優監濕——其為單一最害之環境因。
第二步：立環境控
立並維緩壞之況。
Environmental Control Priorities (in order of impact):
1. HUMIDITY CONTROL (most critical)
- Target: 30-50% RH, with <5% daily fluctuation
- Too high (>60%): mold growth, foxing, warping
- Too low (<25%): brittleness, cracking, flaking
- Solutions: dehumidifier, humidifier, HVAC control, silica gel
- Monitor continuously with datalogger
2. TEMPERATURE CONTROL
- Target: 18-21°C (65-70°F), with <3°C daily fluctuation
- Lower is better for long-term preservation (slows chemical decay)
- Stability matters more than exact temperature
- Never store near exterior walls, heating vents, or pipes
3. LIGHT MANAGEMENT
- UV radiation causes irreversible fading and embrittlement
- Filter all windows with UV film (blocks >99% UV)
- Use LED lighting (no UV emission) instead of fluorescent
- Keep lights off in storage areas when not in use
- Display items on rotation (3-6 months on, then rest)
4. AIR QUALITY
- HVAC filters: minimum MERV 8, ideally MERV 13
- No food or drink near materials
- Avoid off-gassing materials (fresh paint, new carpet, cardboard)
- Ensure air circulation to prevent microclimate pockets
5. PEST MANAGEMENT (IPM)
- Inspect incoming materials before shelving
- Sticky traps at floor level, checked monthly
- No cardboard boxes (pest habitat) — use archival containers
- If pests found: isolate affected items, freeze treatment
(-20°C for 72 hours kills most book pests)
