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Reversible Color-Change Humidity Indicator Card MS20003-2 |
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This card is a color-change indicator and is reversible as required by Military Specification MIL-I-8835. It also meets MIL-P-116 Method II requirements. As the humidity increases, the chemically impregnated spots change from a blue color (DRY), through a lavender, to a pink color (HUMID). As the humidity decreases, the spots change from a pink color (HUMID), through a lavender, back to a blue color (DRY). Each of these cards is accurate to ±5% relative humidity at 75°F (24°C). Other humidity combinations are available by special order. NOTE: This card has been impregnated with a chemical that may cause corrosion of some metals; therefore, we recommend that the card not be placed in direct contact with metal objects. The chemical is no more harmful than table salt to humans. The current Military Standard, MS20003, dated 4 June 63, is approved by all Governmental Agencies, the Department of Defense and NATO for use in Method II packaging. The MS20003-2 card meets this standard and is fully reversible. NSN # 6685-00-752-8240. Size: 2" w x 3" h |