2026-09-21 · KeXinMaterials 编辑团队
MIL-STD-810G vs IP67 vs IP68 vs ATA 300:防护箱认证详解 (2026)
6 个认证主导防护箱规格表:MIL-STD-810G 跌落、IP67/IP68 防护、ATA 300 航空托运,以及欧盟 CE / RoHS / REACH。这是每个认证真正测试的内容、何时重要、以及采购陷阱。
为什么认证不能相互替代
Every certification answers a specific question about case performance. Conflating them is the most common B2B procurement error.
IP67 answers: will the case keep contents dry in a temporary water immersion? IP68 answers: will the case survive continuous water immersion for 30+ minutes at 1-3 metres depth? MIL-STD-810G answers: will the case survive being dropped, vibrated, and temperature-shocked in field conditions? ATA 300 answers: will the case survive 100 airline baggage handling cycles?
These are different questions. A case can pass IP67 (waterproof) but fail MIL-STD-810G (cracks on drop). A case can pass MIL-STD-810G but fail IP68 (water seeps in under continuous immersion). The buyer must verify the certification that matches the actual use case.
Beware of vague marketing claims. A factory may say "MIL-STD-810G certified" without specifying which lot was tested, what drop height, what temperature range. The only way to verify is to request the lot-specific batch test certificate.
IP67 vs IP68:防护等级解释
IP ratings are defined by IEC 60529. The two-digit code after "IP" indicates dust and water resistance. Most protective cases meet IP67 or IP68.
IP67: Protected against temporary immersion in 1 metre of water for 30 minutes. The case must be dust-tight (first digit 6 = dustproof). This covers most B2B field use — outdoor survey, marine deck, helicopter cargo hold, factory floor.
IP68: Protected against continuous immersion in water at 1-3 metres depth for 30+ minutes. Depth and duration specified by the manufacturer. Required for subsea deployment — ROV operations, marine research, diving equipment.
IP rating cost differential: IP67 SKUs are baseline. IP68 SKUs are 10-25% more expensive due to additional sealing and pressure testing. For B2B buyers, IP67 covers 90% of use cases; IP68 is needed only for specific underwater or sustained-pressure applications.
Common procurement trap: "IP-rated" without specifying IP67 or IP68. Always confirm exact rating + batch test certificate.
| IP Rating | Dust | Water Exposure | Typical Use Case | Cost Premium vs IP54 |
|---|---|---|---|---|
| IP54 | Dust-protected (not sealed) | Splashing water | Indoor / light outdoor | Baseline |
| IP65 | Dust-tight | Low-pressure water jets | Outdoor / hose-down | +5-10% |
| IP67 | Dust-tight | Immersion 1m / 30 min | Marine / field work | +10-15% |
| IP68 | Dust-tight | Continuous immersion 1-3m / 30+ min | Subsea / ROV | +25-40% |
MIL-STD-810G:跌落与振动标准
MIL-STD-810G is a US Department of Defense test methodology covering environmental engineering. For protective cases, the relevant sections are drop, vibration, temperature, and humidity.
MIL-STD-810G Method 516.6 — Shock: drop test. The case must survive 26 drops (one per face, edge, corner) from 1.22 metres (48 inches) onto 50mm plywood over concrete. Functional test: contents must remain operational after the drop sequence.
MIL-STD-810G Method 514.6 — Vibration: random vibration simulating transport by truck, aircraft, ship. The case must survive 1 hour per axis at the relevant vibration profile.
MIL-STD-810G Method 501.5 / 502.5 — Temperature: high-temp (49°C for 4 hours) and low-temp (-32°C for 4 hours). Functional test: latches must operate, seals must remain intact.
MIL-STD-810G Method 507.5 — Humidity: 5-day humidity cycle at 95% RH. Functional test: no corrosion, latches remain operational.
For B2B buyers, MIL-STD-810G is the differentiator for defence, aerospace, and outdoor field use. The certificate must specify which methods were tested and the lot number of the tested cases.
ATA 300 类别 I:航空托运行李
ATA Specification 300 defines airline-checkable luggage. Category I is the most stringent — the case must survive 100 round trips of airline baggage handling.
ATA 300 Category I tests 100 cycles of: drop, vibration, humidity, and pressure changes simulating aircraft cargo hold. After 100 cycles, the case must still operate (latches, hinges, seals functional).
For B2B buyers in broadcast, photography, surveying, and field service — teams that fly weekly with gear — ATA 300 is the relevant certification. Without it, the case may survive 5-10 trips but fail at trip 30.
ATA 300 is independent of IP rating. A case can be ATA 300 Category I without being IP67. Conversely, IP67 does not imply ATA 300 (the case could be airtight but crack on impact).
For our factory, ATA 300 Category I certification is standard for all trolley-case SKUs. Inspection camera / broadcast SKUs are batch-certified. Confirm at sample stage.
CE / RoHS / REACH:欧盟合规三件套
For B2B buyers exporting to the EU market, three compliance certifications are mandatory or near-mandatory. Each addresses a different regulatory concern.
CE marking: The product complies with EU safety, health, and environmental requirements. Mandatory for protective cases sold in the EU. Self-declared by the manufacturer for most protective case categories; covers low-voltage directive, EMC directive, and PPE directive (where applicable).
RoHS (Restriction of Hazardous Substances): EU Directive 2011/65/EU restricts lead, mercury, cadmium, hexavalent chromium, PBB, PBDE in electrical and electronic equipment. Plastic cases with metal hardware require RoHS declaration.
REACH (Registration, Evaluation, Authorisation and Restriction of Chemicals): EU regulation covering chemicals used in manufacturing. Plastic cases must declare SVHC (Substances of Very High Concern) below 0.1% w/w threshold.
For B2B buyers, CE / RoHS / REACH are table stakes for EU market access. Verify at sample stage with copy of declaration of conformity. Per-SKU test reports available on request.
其他值得了解的认证
Beyond IP / MIL-STD / ATA / CE, three certifications appear frequently on spec documents for B2B procurement.
- FDA compatibility statement: For medical SKUs (defibrillators, AED, pharma transport). Declares the case materials do not interact adversely with the contents. Per-SKU statement available.
- NSN registration support: For defence SKUs. NSN (National Stock Number) assigned by the buyer's defence procurement agency. The factory provides technical data package (TDP) to support buyer's NSN application.
- ATA 300 Category II: Less stringent than Category I — 50 cycles of drop / vibration. For air-freight-not-checkable cases.
- California Prop 65: For US market. Restricts chemicals known to cause cancer / reproductive harm. Most factory-direct cases pass with material declaration.
- UN 38.3: For cases containing or shipping lithium batteries. Mandatory for air freight.
- ISTA 3A: For transport packaging testing. Independent of MIL-STD but sometimes substituted by procurement.
如何验证认证声明
Marketing claims often exceed reality. The four-step verification protects B2B procurement from non-compliant supply.
- Step 1: Request the certificate. Ask for the lot-specific test certificate. Generic factory-wide certificates are weaker than per-shipment-lot certificates.
- Step 2: Check the issuing body. ISO 17025-accredited labs are the most reliable. In-house factory lab testing is acceptable for IP / drop but third-party for defence / aerospace.
- Step 3: Verify test parameters. MIL-STD-810G drop test must specify drop height (typically 1.22m / 48 inches) and number of drops (26). IP67 must specify 1m / 30 min immersion.
- Step 4: Cross-check the lot number. The certificate lot number must match the lot number physically shipped to you. Mismatch = certificate applies to a different shipment.
为什么选择 KeXinMaterials 认证箱
KeXinMaterials holds ISO 9001:2015, CE / RoHS / REACH for EU export, FDA compatibility statements for medical lines, NSN registration support for defence lines.
All IP67 / IP68 / MIL-STD-810G / ATA 300 certifications are batch-tested per shipment lot. Test certificate supplied with every B2B order. Third-party lab reports available for defence and aerospace procurement.
We support ATA 300 Category I across our trolley-case and inspection camera case SKU range. MIL-STD-810G drop + vibration + temperature + humidity test reports provided per lot for defence / outdoor SKUs.
Trade terms: EXW Shenzhen / FOB Shenzhen / FOB Ningbo. No DDP, no EU warehouse, no US warehouse. Every shipment is direct from our 13,000 m² Guangdong factory floor to your nominated forwarder.
核心要点
- IP67(1m/30min 浸没)覆盖 90% B2B 应用;IP68(连续 1-3m/30+min)仅用于水下
- MIL-STD-810G 跌落 / 振动 / 温度 / 湿度 — 不同测试,不同应用
- ATA 300 类别 I = 100 次航空行李循环;拉杆箱 / 广播 SKU 标准
- CE / RoHS / REACH 欧盟出口必备;美国医疗 / 国防采购需 FDA / NSN
- 始终要求批次测试证书,不是工厂层面的泛证书
常见问题
IP67 和 IP68 的区别是什么?
IP67 表示箱体防尘,可承受 1 米水深临时浸没 30 分钟。IP68 表示箱体防尘,可承受 1-3 米水深连续浸没 30+ 分钟(深度由厂家指定)。大多数 B2B 应用(户外现场工作、海上甲板、运输)IP67 足够。仅水下部署(ROV 操作、海洋研究、潜水设备)需要 IP68。IP68 SKU 比 IP67 等价物贵 10-25%。
MIL-STD-810G 实际测试什么?
MIL-STD-810G 是美国国防部测试方法学。防护箱最相关的 4 种方法:方法 516.6 冲击(从 1.22 米高跌落到胶合板上覆盖混凝土 26 次);方法 514.6 振动(每个轴向运输振动剖面 1 小时);方法 501.5/502.5 温度(49°C 高温、-32°C 低温各 4 小时);方法 507.5 湿度(95% 相对湿度 5 天循环)。每项测试后,锁扣和密封件必须保持功能。
什么是 ATA 300 类别 I?
ATA 规范 300 类别 I 是航空托运行李标准。箱体必须承受 100 次往返航空行李处理(跌落、振动、湿度、压力变化)。100 次循环后,箱体必须保持功能(锁扣、铰链、密封)。ATA 300 Category I 是广播、摄影、测量和现场服务团队(每周带装备飞行)的相关认证。没有 ATA 300 的箱子可能撑过 5-10 次旅行,但第 30 次失败。
欧盟出口需要 CE / RoHS / REACH 吗?
需要。CE 标志在欧盟销售的防护箱是强制的。RoHS(EU Directive 2011/65/EU)限制塑料和金属硬件中的有害物质。REACH(EU 法规)声明 SVHC 化学物质低于 0.1% w/w。样品阶段用一致性声明副本核实。可按 SKU 提供测试报告。KeXinMaterials 每批欧盟出货附 CE / RoHS / REACH 声明。
如何核实工厂的认证声明?
4 步验证:(1) 要求批次特定测试证书。泛工厂证书比每批特定证书弱。(2) 检查出具机构 — ISO 17025 认证实验室最可靠。(3) 验证测试参数 — MIL-STD-810G 跌落必须指定高度(1.22m / 48 英寸)和跌落次数(26)。IP67 必须指定 1m / 30 min。(4) 交叉核对证书上的批号与您实际收到的批号。
FDA 和 NSN 认证呢?
FDA 兼容性声明用于医疗 SKU(除颤器、AED、药品运输)。声明箱体材料不会与内容物不利反应。按 SKU 提供声明。NSN(国家库存编号)注册支持用于国防 SKU。工厂提供技术数据包(TDP)支持买方的 NSN 申请。KeXinMaterials 同时支持医疗和国防 B2B 采购。