2026-09-21 · Equipo editorial KeXinMaterials

MIL-STD-810G vs IP67 vs IP68 vs ATA 300: Certificaciones de Caja Protectora Explicadas (2026)

Seis certificaciones dominan la hoja de especificaciones de cajas protectoras: caída MIL-STD-810G, ingresso IP67/IP68, compatibilidad aérea ATA 300, más CE / RoHS / REACH para la UE. Esto es lo que cada una realmente prueba, cuándo importa y las trampas de adquisición.

Por qué las certificaciones no son intercambiables

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: protección de ingreso explicada

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.

MIL-STD-810G: el estándar de caída y vibración

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 Categoría I: equipaje facturable en avión

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: trío de cumplimiento UE

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.

Otras certificaciones que vale la pena conocer

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.

Cómo verificar una afirmación de certificación

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.

Por qué elegir KeXinMaterials para cajas certificadas

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.

Preguntas frecuentes

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