1、Designation: D4297 15Standard Practice forSampling and Handling Bisphenol A(4,4 -Isopropylidinediphenol)1This standard is issued under the fixed designation D4297; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last re
2、vision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon () indicates an editorial change since the last revision or reapproval.1. Scope*1.1 This practice covers procedures for safely sampling andhandling 4,4-isopropylidinediphenol, commercially known asbisphenol A
3、 (BPA), in various solid forms, and as a liquid atelevated temperatures in a manner which represents andpreserves product quality.1.2 Any person sampling or handling this product shouldhave consulted a safety Data Sheet (SDS) for specific first aidinstructions and information on the proper equipment
4、 to haveavailable for use in the event of personal contact or exposure.1.3 The values stated in SI units are to be regarded asstandard. No other units of measurement are included in thisstandard.1.4 This standard does not purport to address all of thesafety concerns, if any, associated with its use.
5、 It is theresponsibility of the user of this standard to establish appro-priate safety and health practices and determine the applica-bility of regulatory limitations prior to use. For specific hazardstatements, see Sections 3, 4, 5, 6, 7 and 8 and an appropriateSDS.2. Referenced Documents2.1 OSHA R
6、egulations:29 CFR Labor, paragraphs 1910.1000 and 1910.120022.2 U.S. DOT Regulations:49 CFR Transportation, Subchapter C, Parts 171-18023. Significance and Use3.1 This practice is issued to provide information useful inestablishing sampling and handling procedures. It is expectedthat this informatio
7、n will only be utilized in conjunction withan existing health and safety program and consultation with anappropriate SDS. The information provided herein cannot beused as a substitute for expert safety and medical advice asprovided in an appropriate SDS, but rather as a supplement tosuch advice.4. D
8、escription of Product (See Table 1)4.1 Bisphenol A (BPA) is not classified as a hazardouschemical by the Department of Transportation, and is,therefore, not subject to DOT regulations governing the trans-portation of hazardous articles. Bisphenol A is normallytransported in several types of containe
9、rs including cloth andpaper bags, bulk trucks, and covered hopper cars. (See Table1.)4.2 While bisphenol A (BPA) is dangerous when handledimproperly, particularly at elevated temperatures, its unloadingneed not be hazardous provided the hazards are recognized andhandling instructions are rigidly obs
10、erved as detailed here andin an appropriate SDS.5. Hazards5.1 HealthConsult current OSHA regulations and suppli-ers Safety Data Sheet for all materials used in this practice.5.1.1 Aside from the risk of thermal burns in handling BPAwhen molten, and a possibility of dermatitis from impurities,particu
11、larly in crude grades, industrial use does not present asignificant health hazard. However, ordinary precautions mustbe observed to protect personnel from contact with moltenBPA or excessive exposure to dusts or high concentrations ofvapor.5.1.2 Precautions must be observed to protect personnelfrom
12、excessive inhalation of vapors and dust.5.2 Fire:5.2.1 BPA in both the solid and liquid form is combustibleand introduces a potential fire hazard when it is stored,handled, or used.5.2.2 BPA vapors or dust can form explosive mixtures withair.5.2.3 Dry chemicals, carbon dioxide, foam, and water canal
13、l be used in fighting fires involving BPA.1This practice is under the jurisdiction of ASTM Committee D16 on AromaticHydrocarbons and Related Chemicals and is the direct responsibility of Subcom-mittee D16.08 on Handling and Sampling Aromatic and Cyclic Hydrocarbons.Current edition approved June 1, 2
14、015. Published July 2015. Originally approvedin 1983. Last previous edition approved in 2010 as D4297 10. DOI: 10.1520/D4297-15.2Available from U.S. Government Printing Office Superintendent of Documents,732 N. Capitol St., NW, Mail Stop: SDE, Washington, DC 20401, http:/www.ecfr.gov.*A Summary of C
15、hanges section appears at the end of this standardCopyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States16. Protective Equipment6.1 Employees who work with BPA should be well trainedand should maintain safe working conditions. They should be
16、required to read an appropriate SDS for BPA in its entirety andconsult appropriate, local, safety personnel if they have anyquestions or concerns. Persons handling molten bisphenol-Aneed to exercise particular care.7. First Aid7.1 Consult an appropriate SDS for BPAwith regards to firstaid measures t
17、hat should be taken. In particular, extreme caremust be observed handling molten BPA as it can cause severethermal burns.8. Safety Precautions8.1 Exercise care to prevent spills and leaks. If they dooccur, only properly protected personnel should remain in thecontaminated area in accordance with the
18、 instructions in anappropriate SDS. All spill-related activities should complywith applicable EPA, OSHA, and local regulations and laws.8.2 Because of fire and dust explosion hazards, do notpermit open flames in the vicinity of tank carriers, othershipping containers, or storage tanks. Provide all e
19、lectricalfixtures with vapor-proof globes and explosion-proof safetydevices. Ground tank carriers by an approved method. Prohibitsmoking. All pneumatic conveying should be done withnitrogen or other inert gas.8.3 Any person sampling or handling these products shouldhave consulted an appropriate SDS
20、for specific first aidinstructions and equipment to have available for use in theevent of personal contact or exposure.8.4 Conduct sampling and handling operations in accor-dance with the instructions in an appropriate SDS.9. Unloading Hopper Cars or Hopper Trucks9.1 Observe all safety precautions a
21、s outlined in Section 8and in an appropriate SDS. Always follow shippers instruc-tions for unloading, and read and observe all caution markingson both sides of the hopper or dome.9.2 Opening of the hopper car dome cover and attachmentof delivery lines should all be done by accepted safetyprocedures.
22、10. Sampling Solid Bisphenol A10.1 Bulk QuantitiesTake a representative sample, prefer-ably from a falling BPA stream, using a straight-path sampler.Adjust sampler feed rate, slot width, cutter speed, and fre-quency to collect 227-g of sample per 4540 kg of BPA.10.2 Bags (22.7 kg):10.2.1 Using a sma
23、ll thief, 203 to 305 mm, remove about113 g of sample from 1 bag out of every 40 bags (approxi-mately 907 kg) of BPA. Take the sample from the filling ear or,if necessary, by opening one corner of the bag. Place eachsample in a plastic bag. Tightly secure the sample bag tominimize absorption of moist
24、ure. Label with proper identifi-cation and in accordance with OSHA Regulations, or otherappropriate local regulations, or both.10.2.2 Make a composite blend from the individual samplesand mix thoroughly before analyzing.10.2.3 Aluminum, polyethylene, polypropylene, or stainlesssteel-type scoops are
25、recommended for taking samples ofproduct from the bags selected for sampling. Avoid contami-nating the sample with iron or rust.10.3 Extreme care and good judgment are necessary toensure that the samples truly represent the product.10.4 Remove approximately 75 g portions from each of thebags selecte
26、d from a sample unit and place in a plastic bag.Seal the opened bags with suitable tape.10.5 Label the sample container in accordance with OSHAor other appropriate local regulations, or both, to indicate, as aminimum, the date and time, source of the sample, type ofmaterial, purpose of the sample, a
27、nd the name of the sample.10.6 Large Bulk Sacks (500 to 1000 kg):10.6.1 Use a sample thief to collect 227-g samples for each1814 to 2268 kg of material.10.6.2 Place samples in plastic bags. Tightly secure thesample bags to minimize absorption of moisture. Labelsamples in accordance with 10.5.11. Key
28、words11.1 bisphenol A; BPA; handling; samplingTABLE 1 Typical Physical Properties Product Bisphenol AMelting Point, CBoiling Point, C(10.5 mm Hg)Solid FormsFlash Point,CSpecific Gravity,25C154157 240 prills, flakes, crystals, powder 207.2 1.20 (solid)D4297 152SUMMARY OF CHANGESCommittee D16 has iden
29、tified the location of selected changes to this standard since the last issue(D4297 10) that may impact the use of this standard. (Approved June 1, 2015.)(1) Editorial changes made to Sections 1, 3, 4, 5, 6, 7, 8, 9, 10,and Footnote 2.This standard is subject to revision at any time by the responsib
30、le technical committee and must be reviewed every five years andif not revised, either reapproved or withdrawn. Your comments are invited either for revision of this standard or for additional standardsand should be addressed to ASTM International Headquarters. Your comments will receive careful con
31、sideration at a meeting of theresponsible technical committee, which you may attend. If you feel that your comments have not received a fair hearing you shouldmake your views known to the ASTM Committee on Standards, at the address shown below.This standard is copyrighted by ASTM International, 100
32、Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959,United States. Individual reprints (single or multiple copies) of this standard may be obtained by contacting ASTM at the aboveaddress or at 610-832-9585 (phone), 610-832-9555 (fax), or serviceastm.org (e-mail); or through the ASTM website(www.astm.org). Permission rights to photocopy the standard may also be secured from the Copyright Clearance Center, 222Rosewood Drive, Danvers, MA 01923, Tel: (978) 646-2600; http:/ 153
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