tb-2031 september 2013 page 1 of 7 technical bulletin tb-2031 statshield ? moisture barrier bags application instructions desco west - 3651 walnut avenue, chino, ca 91710 ? (909) 627-8178 desco east - one colgate way, canton, ma 02021-1407 ? (781) 821-8370 ? web site: desco.com figure 1. desco statshield ? moisture barrier bag description desco statshield ? moisture barrier bags combine the properties of a moisture barrier protection with emi-rfi-esd shielding. statshield ? moisture barrier bags meet the electrical and physical requirements of ansi/esd s20.20, packaging standard ansi/esd s541, and static control bag ansi/esd s11.4. all statshield ? moisture barrier bags are amide, amine, and silicone free and pass outgassing and corrosion tests. all bags are printed with esd protective symbol and the moisture-sensitive identification label and are dated and lot coded for quality control traceability. all three styles are available in a variety of standard sizes, custom sizes and with custom printing. desco offers three styles of moisture barrier bags: moisture barrier bags - static control bag ansi/esd s11.4 level 2 - thickness .0035" (.0889mm) - moisture barrier transfer rate (mvtr) 0.020 - puncture resistance >20 lbs high moisture barrier bags - static control bag ansi/esd s11.4 level 2 - thickness .0065" (.1651mm) - moisture barrier transfer rate (mvtr) 0.014 - puncture resistance >30 lbs foil (emi/rfi) moisture barrier bag - static control bag ansi/esd s11.4 level 1 - thickness .0040" (.1061mm) - moisture barrier transfer rate (mvtr) 0.0003 - puncture resistance >27 lbs notes: thickness - typical value. nominal 10% per mil-std-3010 1003 moisture barrier transfer rate (mvtr) - measured per astm f1249 (g/100 sq.in./24 hrs, at 100f) puncture resistance C measured per mil-std-3010 2065 construction descos statshield ? moisture barrier bags manufactured from a static dissipative metalized laminated film. the metal layer of the descos statshield ? moisture barrier bags and statshield ? high moisture barrier bags is created by vacuum deposited manufacturing technique. this manufacturing technique allows for a more flexible finished bag that is less likely to tear or rip during use. finished bags with foil layer, such as descos statshield ? foil moisture barrier bags provides a better moisture barrier and is a good choice when having to meet ipc/jedec j-std-033 standard. made in the united states of america ? 2013 desco industries inc. employee owned static dissipative polyester vacuum deposited aluminum shielding layer polyester layer vacuum deposited aluminum shielding layer high performance static dissipative polyethylene figure 2. statshield ? mbb bag and high moisture mbb bag layer construction. abrasion resistant coating static dissipative polyester layer solid aluminum foil layer high performance static dissipative polyethylene interior layer figure 3. statshield ? foil (emi/rfi) mbb bag layer construction
tb-2031 page 2 of 7 desco west - 3651 walnut avenue, chino, ca 91710 ? (909) 627-8178 desco east - one colgate way, canton, ma 02021-1407 ? (781) 821-8370 ? web site: desco.com ? 2013 desco industries inc. employee owned figure 4. desiccant packs in order to provide a complete moisture barrier packaging system, desiccant must be inserted into the bag, prior to having the bag vacuum sealed. the recommended amount of desiccant is dependent on the interior surface area of the bag to be used. figure 5 is a reference table indicating recommended minimum amounts of desiccant that should be used with moisture barrier bags. interior bag number of desiccant units surface area *mih <20% mih <30% mih < 40% 100 sq. in. 1.5 1.0 1.0 130 sq. in. 2.0 1.5 1.0 160 sq. in. 2.0 1.5 1.5 200 sq. in. 2.5 2.0 1.5 240 sq. in. 3.0 2.0 1.5 290 sq. in. 4.0 2.5 2.0 340 sq. in. 4.5 3.0 2.5 390 sq. in. 5.0 3.5 2.5 450 sq. in. 5.5 4.0 3.0 510 sq. in. 6.5 4.5 3.5 580 sq. in. 7.5 5.0 4.0 650 sq. in. 8.0 5.5 4.0 720 sq. in. 9.0 6.0 4.5 figure 5. table for recommended desiccant usage. information taken out of eia-583, table 1, page 8 13868 13869 13870 figure 5. humidity indicator cards desiccant packs are available from desco in the following unit sizes and standard packages: item # unit size std. package 13840 1/2 unit - 1.5" x 3" box of 700 13843 1 unit - 2" x 4" box of 450 13844 1/2 unit - 2" x 4" pail of 300 13850 1/2 unit - 1.5" x 3" pail of 550 desiccant packs sold by desco meet the requirements of mil-d-3464. for more detailed information, see drawing 13850 . humidity indicator cards humidity indicator cards contain chemically impregnated, humidity sensitive, indicating spots that will change color with moisture. the comparison bar is used to determine relative humidity of air. select the indicating spot that most closely matches the color of the comparison bar. the measured relative humidity is the percentage indicated on the matching spot. the chemical reaction of the indicating spots is completely reversible; the spots will continue to change color as the moisture levels change. item# card size std. package relative humidity 13868 2" x 3" 125 pcs/can 5/10/15 13869 2" x 3" 125 pcs/can 5/10/60 13870 2" x 3" 100 pcs/can 10/20/30/40 cobalt-dichloride free humidity indicator cards cobalt-dichloride free humidity indicator (hi) cards provide electronic and semiconductor manufacturers with a jedec complaint humidity indicator card that is free of cobalt-dichloride, a chemical regulated under european chemical bureau (ecb) reach-directives. *mih - maximum interior humidity. dry packing information the statshield ? moisture barrier bag, desiccant packs and humidity indicator cards have been developed for use in dry packaging applications. in order for the mbb bag and its accessories to perform properly, desco recommends the user follow procedures defined in ipc/jedec j-std-033b. desiccant desiccant is a drying agent used to lower the moisture content of air within a closed space, such as a sealed moisture barrier bag. desiccant is packaged in fractional units in order to facilitate its usage with a variety of bag sizes. one full unit of packaged desiccant will absorb the following quantities of water at equilibrium with air at 77f (25c): 3.00 grams @ 20% rh and 6.00 grams @ 40% rh, when tested to mil-d-3464.
tb-2031 page 3 of 7 desco west - 3651 walnut avenue, chino, ca 91710 ? (909) 627-8178 desco east - one colgate way, canton, ma 02021-1407 ? (781) 821-8370 ? web site: desco.com item# card size std. package relative humidity 13858 2" x 3" 125 pcs/can 5/10/15 13859 2" x 3" 125 pcs/can 5/10/60 13860 2" x 3" 100 pcs/can 10/20/30/40 13861 1.56" x 4.75" 200 pcs/can 10/20/30/40/50/60 specifications moisture barrier bag .0035" (.0889mm) electrical properties resistance of polyester layer < 1 x 10 11 ohms per ansi/esd stm11.11 resistance of polyethylene layer < 1 x 10 11 ohms per ansi/esd stm11.11 emi shielding (db between 1 and 10 ghz) 45db energy penetration <20nj per ansi/esd s11.31 physical properties thickness (nominal) 0.0035" (.0889mm) per mil-std-3010 1003 mvtr (grams / 100 in 2 / 24 hrs, 100f) 0.02 per astm f 1249 puncture strength (lb) 20 per ftms 101-c, mil-std-2065 for more detailed information, see drawing 13806 . ? 2013 desco industries inc. employee owned foil moisture barrier bag .0040" (.1016mm) electrical properties resistance of polyester outer layer < 1 x 10 11 ohms per ansi/esd stm11.11 resistance of polyethylene inner layer < 1 x 10 11 ohms per ansi/esd stm11.11 emi shielding (db between 1 and 10 ghz) 45db energy penetration <20nj per ansi/esd s11.31 physical properties thickness (nominal) 0.0040" (.1016mm) per mil-std-3010 2065 mvtr (grams / 100 in 2 / 24 hrs, 100f) 0.0003 per astm f 1249 puncture strength (lb) 25 per ftms 101-c, mil-std-3010 2065 for more detailed information, see drawing 13950 . high moisture barrier bag .0065" (.1651mm) electrical properties resistance of polyester outer layer < 1 x 10 11 ohms per ansi/esd stm11.11 resistance of polyethylene inner layer < 1 x 10 11 ohms per ansi/esd stm11.11 emi shielding 45db energy penetration <20nj per ansi/esd s11.31 physical properties thickness (nominal) 0.0065" (.1651mm) per mil-std-3010 1003 mvtr (grams / 100 in 2 / 24 hrs, 100f) 0.005 per astm f 1249 puncture strength (lb) 30 per ftms 101-c, mil-std-3010 2065 for more detailed information, see drawing 13760 . see bag selection chart click here. see shielding bag storage at tb-7057. figure 6. cobalt-dichloride free humidity indicator cards 13858 13859 13861 13860
desco 761 penarth ave., walnut, ca 91789-3074 ? (909) 598-2753 ? fax (909) 595-7028 ? fax request (909) 598-0864 limited warranty desco expressly warrants that for a period of one (1) year from the date of purchase, desco shielding bags and components will be free of defects in material (parts) and workmanship (labor). within the warranty period, the product will be tested, repaired, or replaced at descos option, free of charge. call our customer service department at 909-627-8178 (chino, ca) or 781- 821-8370 (canton, ma) for a return material authorization (rma) and proper shipping instructions and address. include a copy of your original packing slip, invoice, or other proof of purchase date. any unit under warranty should be shipped prepaid to the desco factory. warranty repairs will take approximately one week. warranty exclusions the foregoing express warranty is made in lieu of all other product warranties, expressed and implied, including merchantability and fitness for a particular purpose which are specifically disclaimed. the express warranty will not apply to defects or damage due to accidents, neglect, misuse, alterations, operator error, or failure to properly maintain, clean or repair products. limit of liability in no event will desco or any seller be responsible or liable for any injury, loss or damage, direct or consequential, arising out of the use of or the inability to use the product. before using, users shall determine the suitability of the product for their intended use, and users assume all risk and liability whatsoever in connection therewith. rohs 2 and reach statement none of the rohs 2 restricted materials or reach substances of very high concern as of 2013/06/20 are intentionally added in manufacturing this product. ref: european union directive 2011/65/eu and regulation (ec) no. 1907/2006/ce. see desco limited warranty at desco.com . tb-2031 page 4 of 7 desco west - 3651 walnut avenue, chino, ca 91710 ? (909) 627-8178 desco east - one colgate way, canton, ma 02021-1407 ? (781) 821-8370 ? web site: desco.com ? 2013 desco industries inc. employee owned
desco 761 penarth ave., walnut, ca 91789-3074 ? (909) 598-2753 ? fax (909) 595-7028 ? fax request (909) 598-0864 section 1 identification of the substance/preparation and the company/undertaking product information commercial p roduct name: reversible h umidity i ndicator company : desco 3651 walnut ave. chinio, ca. 91710 phone : (909) 627-8178 fax : (909) 627-7449 section 2 composition/information on ingredients chemical nature: cobalt dichloride on cardboard section 3 hazards identification none under normal use section 4 first aid measures general advice: none eye contact: rinse immediately with plenty of water, also under the eyelids, for at least 15 minutes skin contact: wash off with soap and plenty of water inhalation: n.a. ingestion: rinse mouth notes to physician treatment: none section 5 firefighting measures suitable extinguishing media: use extinguishing measures appropriate to the envirnoment. extinguishing media which must not be used for safety reasons: none section 6 accidental release measures environmental precautions: do not flush into surface water or sanity sewer system methods for cleaning up: take up contaminated material by mechanical means, load into clean containers, and dispose of in accordance with legal regulations 0 0 1 0 flammability (red) reactivity (yellow) health (blue) special hazard nfpa designation 704 degree of hazard: 4 = extreme 1 = slight 3 = high 0 = insignificant 2 = moderate material safety data sheet may be used to comply with oshas hazard communication standard, 29 cfr 1910. 1200. standard must be consulted for specific requirements. components cas-no. symbol(s) r-phrase(s) concentration cobalt(ii) chloride 7646-79-9 t, n r49, r22, r42/43, r50-53 >0.10 - <1.00% tb-2031 page 5 of 7 desco west - 3651 walnut avenue, chino, ca 91710 ? (909) 627-8178 desco east - one colgate way, canton, ma 02021-1407 ? (781) 821-8370 ? web site: desco.com ? 2013 desco industries inc. employee owned
desco 761 penarth ave., walnut, ca 91789-3074 ? (909) 598-2753 ? fax (909) 595-7028 ? fax request (909) 598-0864 section 7 handling and storage handling safe handling advice: no special precautions required storage requirement for storage area and containers: keep in a dry place section 8 composition/information on ingredients components with workplace parameters personal protective equipment respiratory protection: n.a. hand protection: protective gloves eye protection: n.a. skin and body protection: not required hygiene measures: wash off with warm water and soap protective measures: prophylactic use of protective ointment (barrier cream) is recommended. section 9 physical and chemical properties appearance form: plates color: pink to blue odor: none other data water solubility: partly soluble, max. 600 ppm cocl2 can be leached out ph: 4.5 - 6 section 10 stability and reactivity hazardous reactions: hygroscopic (conditions to avoid) hazardous reactions: alkali metals ( materials to avoid) information about decomposition: no decomposition if stored and applied as directed section 11 stability and reactivity acute toxicity acute oral toxicity: ld50 dose: 766mg/kg (cobalt (ii)chloride-hexahydrate) irritation, sensitization, other data toxicology components cas-no. value remarks basis cobalt(ii) chloride 7646-79-9 0.5 mg/m3 inhalable dust, sensitizer trgs900, trk tb-2031 page 6 of 7 desco west - 3651 walnut avenue, chino, ca 91710 ? (909) 627-8178 desco east - one colgate way, canton, ma 02021-1407 ? (781) 821-8370 ? web site: desco.com ? 2013 desco industries inc. employee owned
desco 761 penarth ave., walnut, ca 91789-3074 ? (909) 598-2753 ? fax (909) 595-7028 ? fax request (909) 598-0864 sensitization: result: may cause sensitization by skin contact. repeated dose toxicity: no data available section 12 ecological information decomposition: not readily biodegradable ecotoxicity effects further information ecotoxicity: no data available heavy metals: heavy metals should not be released into the environment. additional information about ecology: heavy metals should not be released into the environment section 13 disposal considerations product: dispose as special waste. can be landfilled or incinerated, when in compliance with the environmental protection (duty of care) regulations 1991. section 14 transport information land transport: not classified as dangerous in the meaning of transport regulations. sea transport: not classified as dangerous in the meaning of transport regulations. air transport: not classified as dangerous in the meaning of transport regulations. section 15 regulatory information general advice: the product does not need to be labeled in accordance with ec directives or respective national laws. hazardous components which must be listed on the label: preparation: not applicable other information: follow the usual precautions required when handling chemicals. section 16 regulatory information responsible for sds: environmental protection contact person: dep. ceq tel.08761/82-654 the information presented herein is believed to be accurate, but is not warranted. it does not represent any assurance of properties of the product. the specifications are to be drawn from the corresponding leaflet. a vertical bar (|) in the left margin indicates an amendment from the previous version. legend n.a.: not applicable n.av.: not available n.r.: not relevant tb-2031 page 7 of 7 desco west - 3651 walnut avenue, chino, ca 91710 ? (909) 627-8178 desco east - one colgate way, canton, ma 02021-1407 ? (781) 821-8370 ? web site: desco.com ? 2013 desco industries inc. employee owned
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