醛和酮檢測

醛和酮檢測項目報價？??解決方案？??檢測周期？??樣品要求？

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GB 1886.58-2015食品安全標(biāo)準(zhǔn) 食品添加劑 乙醚

本標(biāo)準(zhǔn)適用于以乙醇或乙烯為原料在硫酸作用下脫水后分餾制得的食品添加劑乙醚。

GB/T 6283-2008化工產(chǎn)品中水分含量的測定.卡爾.費休法(通用方法)

本標(biāo)準(zhǔn)規(guī)定了用卡爾.費休目測法和電量法測定樣品游離水或結(jié)晶水含量的通用方法。本標(biāo)準(zhǔn)適用于大部分有機和無機固、液體化工產(chǎn)品中游離水或結(jié)晶水含量的測定。本標(biāo)準(zhǔn)不適用于能與卡爾.費休試劑的主要成分反應(yīng)并生產(chǎn) 水的樣品以及能還原碘或氧化碘化物的樣品中水分的測定。在某些情況下，樣品需要預(yù)處理措施，它們均在相應(yīng)的標(biāo)準(zhǔn)中作了規(guī)定。當(dāng)沒有電量法的儀器時，可使用目測法，它是一種直接滴定法，但只能用于無色的溶液。電量法包括直接滴定和反滴定兩種方法，無論采用哪一種，都是較為準(zhǔn)確的，因此，推薦用電量法。

GB/T 14074-2017木材工業(yè)用膠粘劑及其樹脂檢驗方法

本標(biāo)準(zhǔn)規(guī)定了木材工業(yè)用膠粘劑及其樹脂的檢驗方法。本標(biāo)準(zhǔn)的3.1、3.2、3.3、3.4、3.5適用于木材工業(yè)用膠粘劑用三聚氰胺改性脲醛樹脂、酚醛樹脂、三聚氰胺甲醛樹脂外觀、密度、黏度、pH值和固體含量的測定。本標(biāo)準(zhǔn)的3.6適用于木材工業(yè)用膠粘劑用水溶性酚醛樹脂和三聚氰胺改性脲醛樹脂水混合性的測定。本標(biāo)準(zhǔn)的3.7、3.8、3.17、3.18適用于木材工業(yè)用膠粘劑用三聚氰胺改性脲醛樹脂固化時間、適用期、羥甲基含量和沉析溫度的測定。本標(biāo)準(zhǔn)的3.9適用于木材工業(yè)用膠粘劑用三聚氰胺改性脲醛樹脂和酚醛樹脂貯存穩(wěn)定性的測定。本標(biāo)準(zhǔn)的3.10.1適用于木材工業(yè)用膠粘劑用三聚氰胺改性脲醛樹脂、酚醛樹脂生產(chǎn)的膠合板的膠合強度的測定；本標(biāo)準(zhǔn)的3.10.2適用于木材工業(yè)用膠粘劑用脲醛樹脂和酚醛樹脂生產(chǎn)的中密度纖維板和刨花板的內(nèi)結(jié)合強度測定。本標(biāo)準(zhǔn)的3.11適用于木材工業(yè)用膠粘劑用醇溶性酚醛樹脂含水率的測定。本標(biāo)準(zhǔn)的3.12適用于木材工業(yè)用膠粘劑用可溶性和低熔點可熔性酚醛樹脂凝膠時間的測定；不適用于凝膠時間過短的粉狀如酚醛樹脂、線性酚醛等不能自身固化的樹脂以及含有大量低沸點溶劑的樹脂凝膠時間的測定。可以測定在有催化劑條件下的凝膠時間。催化劑可按固定的比例加入，使用催化劑固化的凝膠時間應(yīng)在報告中說明使用固化劑的類型和樣品處理方法。本標(biāo)準(zhǔn)的3.13適用于木材工業(yè)用膠粘劑用酚醛樹脂游離苯酚含量的測定。本標(biāo)準(zhǔn)的3.14適用于木材工業(yè)用膠粘劑用水溶性酚醛樹脂可被溴化物含量的測定。本標(biāo)準(zhǔn)的3.15適用于木材工業(yè)用膠粘劑用水溶性酚醛樹脂堿含量的測定。本標(biāo)準(zhǔn)的3.16.1適用于木材工業(yè)用膠粘劑用游離甲醛含量不大于15%的酚醛樹脂的游離甲醛含量的測定。本標(biāo)準(zhǔn)的3.16.2適用于木材工業(yè)用膠粘劑用脲醛、三聚氰胺改性脲醛樹脂游離甲醛含量的測定，此方法不適用于酚醛樹脂改性的呋喃樹脂游離甲醛含量的測定。

GB/T 32684-2016塑料 酚醛樹脂 游離甲醛含量的測定

本標(biāo)準(zhǔn)規(guī)定了酚醛樹脂及其改性樹脂中游離甲醛含量的測定方法。本標(biāo)準(zhǔn)適用于酚醛樹脂及其改性樹脂中游離甲醛含量的測定，其結(jié)果僅代表測定時樹脂中的游離甲醛實際含量，與樹脂加工過程中或加工后的游離甲醛含量無直接關(guān)系。

GB/T 34903.1-2017石油、石化與天然氣工業(yè) 與油氣開采相關(guān)介質(zhì)接觸的非金屬材料 第1部分:熱塑性塑料

GB/T 34903的本部分規(guī)定了服役于石油與天然氣生產(chǎn)設(shè)備中的非金屬材料選用與評價的一般原則、基本要求、推薦做法以及產(chǎn)品質(zhì)量保證指南。非金屬材料失效導(dǎo)致的設(shè)備損壞會造成公眾健康、人員安全與環(huán)境風(fēng)險。本部分有助于避免設(shè)備發(fā)生這種高昂代價的腐蝕損壞。本部分補充而不是代替設(shè)備設(shè)計準(zhǔn)則、標(biāo)準(zhǔn)或法律規(guī)范中已有的材料技術(shù)要求。GB/T 34903的本部分規(guī)定了石油天然氣工業(yè)中使用的熱塑性塑料材料類型、性能要求、制造要求、相容性評價方法和相容性技術(shù)指標(biāo)判據(jù)。本部分適用于但不限于以下設(shè)備:非金屬管線、管道、襯里、密封件、墊圈和密封圈。本部分不一定適用于煉油化工或石油天然氣工業(yè)下游加工裝置及設(shè)備。

GB/T 36700.6-2018化學(xué)品 水生環(huán)境危害分類指導(dǎo) 第6部分:定量結(jié)構(gòu)活性關(guān)系(QSAR)

GB/T 36700的本部分規(guī)定了化學(xué)品對水生環(huán)境危害分類涉及定量結(jié)構(gòu)活性關(guān)系(QSAR)方法使用中導(dǎo)致危險低估的試驗因素、模型選擇、使用。本部分適用于化學(xué)品水生環(huán)境危害分類涉及QSAR使用的指導(dǎo)。

GB/T 37191-2018生橡膠 水分含量的測定 卡爾費休法

本標(biāo)準(zhǔn)規(guī)定了采用卡爾費休庫侖滴定法測定生橡膠和混煉膠中水分含量的方法。本標(biāo)準(zhǔn)適用于水分含量在0.01%~1%的生橡膠。

NB/T 12004-2016費托合成水中有機酸、醇、醛、酮的測定

本標(biāo)準(zhǔn)規(guī)定了用氣相色譜法測定費托合成水中C<下標(biāo)1>~C<下標(biāo)8>的醇類、醛類和酮類的測定方法和用離子色譜法測定費托合成水中C<下標(biāo)1>~C<下標(biāo)6>的正構(gòu)有機酸的測定方法。本標(biāo)準(zhǔn)適用于費托合成水相產(chǎn)物的組分分析。正構(gòu)醇類的測定范圍為0.003 %~10 %(質(zhì)量分?jǐn)?shù))；異構(gòu)醇類的測定范圍為0.003 %~1.0 %(質(zhì)量分?jǐn)?shù))；醛酮類的測定范圍為0.003 %~1.0 %(質(zhì)量分?jǐn)?shù))；有機酸的測定范圍為0.01 %~4.0 %(質(zhì)量分?jǐn)?shù))。

ABNT NBR 6309-2011乙二醇.醛和酮含量的測定

This Standard specifies a method for determination of aldehydes and ketones content in ethylene glycols at concentrations of 1 mg/Kg to 20 mg/Kg.

ABNT NBR 12026-2009輕型越野車 - 測定廢氣中的醛和酮的液相色譜 - DNPH方法

This Standard describes the procedure to determine aldhydes and ketones, by the 2,4 dinitrophenylhydrazine (DNPH) method with High Perfomance Liquid Chromatograph, in the light duty vehicles while running on chassis dynamometer, wich simulate the vehicle traveling in an urban transit, as ABNT NBR 6601.

DIN EN 16682-2017文化遺產(chǎn)的保存. 不可移動文化遺產(chǎn)構(gòu)成材料濕含量或含水量的測量方法; 德文版本EN 16682-2017

This European Standard is aimed to inform and assist users in the choice and use of the most appropriate method to obtain reliable measurements of the moisture content, or water content, in wood and masonry (including brickwork, stonework, concrete, gypsum, mortars, etc.) in the specific case of the built cultural heritage. It provides a basic framework to take and interpret this kind of measurements on the above cultural heritage materials that have undergone weathering, pest attack, salt migration or other transformations over time. It specifies four absolute methods (i.e. gravimetric, Karl Fischer titration, azeotropic distillation and calcium carbide); explains their characteristics, pros and cons, and gives specifications for the transformation of readings into the same unit to make measurements taken with different methods comparable. It specifies the three principal relative methods (i.e. electrical resistance, capacitance, and relative humidity in equilibrium with the material), pointing out their characteristics and uncertainties when used in the field of cultural heritage. In addition, it provides an informative overview of ten other relative methods, their characteristics, pros and cons. It gives specifications for the calibration of the various methods. It also compares the above methods in relation to their accuracy, sampling requirement, sample size, laboratory or field use, and other problems encountered in the field of cultural heritage to prevent instrument misuse, reduce uncertainties and avoid reading misinterpretation.

DIN EN ISO 10580-2012彈性織物和層壓地板覆蓋物.揮發(fā)性有機化合物(VOC)排放(ISO 10580-2010).德文版本EN ISO 10580-2012

This International standard specifies a general laboratory test method for determination of the area specific emission rate of volatile organic compounds (VOCs) and/or the vapour phase VOC concentration under defined climate conditions. This international standard describes emission test chambers used for determination of the emission of volatile organic compounds from resilient, textile and laminate floor coverings. A description of an emission test chamber is given in Annex A. Annexes B and C provide details on the evaluation systems used in Europe and North America, respectively.IMPORTANT ? This test method could be used for the determination of emission of Formaldehyde however more specific methods are in use in the different countries. Please be aware of many countries having legal regulations and requirements for emissions of Formaldehyde based on mandatory test methods other than this method.Studies of the emission of volatile organic compounds from unused (pre-installation) floor covering products in test chambers require proper handling of the product prior to testing, and during the testing period. For each type of floor covering product, specifications are given for the sampling procedures, transport conditions and storage parameters that can affect emissions of volatile organic compounds. For each type of floor covering product, the preparation of a test specimen is prescribed. NOTE Depending on the non-homogeneity of the product, it can be necessary to make measurements on multiple test specimens from the same sample to determine the specific emission rate.

DIN EN ISO 16000-2-2006室內(nèi)空氣.第2部分:甲醛的抽樣方法

General and substance-specific aspects of the measurement strategy to be taken into account before and during sampling as well as measurement procedures for individual substances or groups of substances in indoor air are described in the single parts of DIN EN ISO 16000. DIN EN ISO 16000-2 deals with the specific aspects of the measurement strategy to be taken into account for the determination of formaldehyde. Especially the requirements for ventilation, humidity, setting of the room temperature, sampling duration as well as screening tests are considered. Before an indoor air measurement can be carried out, its objective has to be defined clearly. The measurement is usually required because of one of the following objectives: a) to check compliance with the guideline value, b) to determine maximum concentrations, c) to check the efficiency of remediation, d) to determine the average concentration over a longer period of time. In the standard the corresponding procedures for sampling and the boundary conditions to be observed are described in detail.#,,#

DIN EN ISO 16000-5-2007室內(nèi)空氣.第5部分:揮發(fā)性有機化合物(VOCs)的抽樣策略

This part of ISO 16000 is intended as an aid to planning volatile organic compound(VOC)indoor pollutionmeasurements In the case of indoor air measurements，the careful planning of sampling and the entiremeasurement strategy are of particular significance since the result of the measurement may have far-reaching consequences，for example，with regard to the need for remediaI action or the success of such anaction．An inappropriate measurement strategy may contribute to the complete uncertainty of the measurement resultin a larger extent than the measurement procedure itself.This part of ISO 16000 uses the definition for indoor environment defined in ISO 16000—1.

BS EN ISO 11402-2005酚醛樹脂、氨基樹脂和縮合樹脂.游離甲醛含量的測定

ISO 11402:2004 specifies three methods for determining the free-formaldehyde content in the following:Phenolic resins, by potentiometric titration in aqueous or organic solution (hydroxylamine hydrochloride procedure). The method is applicable to resins with free-formaldehyde contents up to and including 15 % by mass. For free-formaldehyde contents between 15 % by mass and 30 % by mass, it may be necessary to adjust the concentrations of the standard volumetric solutions used accordingly.Amino resins and furan resins (sulfite procedure). The method is applicable to resins resulting from the polycondensation of urea and melamine with formaldehyde and to furan resins resulting from the polycondensation of furfuryl alcohol with formaldehyde without further modification.Condensation resins (KCN procedure), including urea resins, furan resins, melamine resins and phenolic resins, as well as combinations and modifications of these resins.The purpose of this International Standard is to establish recognized and useful determination procedures (for instance in order to check whether official regulations on the handling of hazardous workplace materials are observed).The free-formaldehyde content determined in formaldehyde condensation resins using this International Standard represents the actual content at the time of the determination. The value bears no quantitative relationship to the free-formaldehyde content during or after processing.