中國(guó)合格評(píng)定國(guó)家認(rèn)可委員會(huì)

1、ISO/IEC 17025 認(rèn)可證書 CNAS-PD19/06-A/3 中國(guó)合格評(píng)定國(guó)家認(rèn)可委員會(huì)認(rèn) 可 證 書 附 件（注冊(cè)號(hào)：CNAS L1138）名稱: 西北橡膠塑料研究設(shè)計(jì)院橡膠密封制品檢驗(yàn)實(shí)驗(yàn)室地址：陜西省咸陽(yáng)市西華路2號(hào)簽發(fā)日期：2009年07月24日 有效期至：2012年07月23日更新日期：2010年10月19日附件1 認(rèn)可的檢測(cè)能力范圍序號(hào)檢測(cè)對(duì)象項(xiàng)目/參數(shù)領(lǐng)域代碼檢測(cè)標(biāo)準(zhǔn)（方法）名稱及編號(hào)（含年號(hào)）限制范圍說(shuō)明序號(hào)名稱1橡膠或熱塑性橡膠1尺寸0220橡膠物理試驗(yàn)方法試樣制備和調(diào)節(jié)通用程序GB/T 2941-20062硬度0220硫化橡膠或熱塑性橡膠 壓入硬度試驗(yàn)方法 第1部

2、分：邵氏硬度計(jì)法（邵爾硬度）GB/T 531.1-2008硫化橡膠或熱塑性橡膠硬度的測(cè)定（10100IRHD）GB/T 6031-19983拉伸強(qiáng)度0220硫化橡膠或熱塑性橡膠拉伸應(yīng)力應(yīng)變性能的測(cè)定GB/T 528-20094拉斷伸長(zhǎng)率02205定伸應(yīng)力02206拉斷永久變02207撕裂強(qiáng)度0220硫化橡膠或熱塑性橡膠撕裂強(qiáng)度的測(cè)定（褲形、直角形和新月形試樣）GB/T 529-20088壓縮應(yīng)力松弛0220硫化橡膠或熱塑性橡膠 在常溫和高溫下壓縮應(yīng)力松弛的測(cè)定GB/T 1685-20081橡膠或熱塑性橡膠9粘合強(qiáng)度0220硫化橡膠或熱塑性橡膠與織物粘合強(qiáng)度的測(cè)定GB/T 532-2008硫化橡

3、膠與金屬粘接180°剝離試驗(yàn) GB/T 15254-1994硫化橡膠或熱塑性橡膠與硬質(zhì)板材粘合強(qiáng)度的測(cè)定 90°剝離法GB/T 7760-2003硫化橡膠或熱塑性橡膠 與金屬粘合強(qiáng)度的測(cè)定 二板法 GB/T 11211-2009硫化橡膠與金屬粘合拉伸剪切強(qiáng)度的測(cè)定方法GB/T 13936-199210壓縮永久變形0220硫化橡膠、熱塑性橡膠常溫、高溫和低溫下壓縮永久變形測(cè)定GB/T 7759-199611熱空氣加速老化和耐熱試驗(yàn)0220硫化橡膠或熱塑性橡膠熱空氣加速老化和耐熱試驗(yàn)GB/T 3512-200112耐液體試驗(yàn)0220硫化橡膠耐液體性能試驗(yàn)方法 GB/T 1690

4、-1992(2006)13脆性溫度（單試樣）0220硫化橡膠低溫脆性的測(cè)定 單試樣法 GB/T 1682-199414低溫脆性(多試樣法)0220硫化橡膠低溫脆性的測(cè)定(多試樣法) GB/T 15256-199415耐臭氧0220硫化橡膠或熱塑性橡膠耐臭氧龜裂靜態(tài)拉伸試驗(yàn) GB/T 7762-200316耐候性0220硫化橡膠或熱塑性橡膠 耐候性GB/T 3511-20081橡膠或熱塑性橡膠17回彈性0220硫化橡膠回彈性的測(cè)定GB/T 1681-200918伸張疲勞0220硫化橡膠伸張疲勞的測(cè)定GB/T 1688-200819壓縮模量0220硫化橡膠或熱塑性橡膠壓縮應(yīng)力應(yīng)變性能的測(cè)定GB/T

5、 7757-200920密度0220硫化橡膠或熱塑性橡膠 密度的測(cè)定GB/T 533-200821壓縮耐寒系數(shù)0220硫化橡膠壓縮耐寒系數(shù)的測(cè)定HG/T 3866-200822絕緣電阻率0220硫化橡膠絕緣電阻率的測(cè)定 GB/T 1692-200823介電常數(shù)和介電損耗角正切0220硫化橡膠 介電常數(shù)和介電損耗角正切值的測(cè)定方法GB/T 1693-200724擊穿電壓強(qiáng)度和耐電壓0220硫化橡膠工頻擊穿電壓強(qiáng)度和耐電壓的測(cè)定方法 GB/T 1695-200525燃燒性能0220橡膠燃燒性能的測(cè)定GB/T 10707-200826橡膠熱導(dǎo)率0220橡膠熱導(dǎo)率的測(cè)定 瞬態(tài)熱絲法GB/T 11205

6、-200927定性分析0220橡膠鑒定 紅外光譜法GB/T 7764-200128定量分析0220橡膠及橡膠制品組分含量的測(cè)定-熱重分析法GB/T 14837-199329TR試驗(yàn)0220硫化橡膠 低溫性能的測(cè)定溫度回縮法（TR試驗(yàn)）GB/T 7758-200230鹽霧試驗(yàn)0220軍用設(shè)備環(huán)境試驗(yàn)方法 鹽霧試驗(yàn)GJB 150.11A-20091橡膠或熱塑性橡膠31門尼粘度0220未硫化橡膠 用圓盤剪切粘度計(jì)進(jìn)行測(cè)定 第1部分 門尼粘度的測(cè)定 GB/T 1232.1-200032貯存期0220靜密封橡膠零件貯存期快速測(cè)定方法HG/T 3087-200133相容性0220標(biāo)準(zhǔn)彈性體材料與液壓液體的

7、相容性試驗(yàn) GB/T 14832-200834O形橡膠密封圈試驗(yàn)0220O形橡膠密封圈試驗(yàn)方法GB/T 5720-200835阿克隆磨耗0220硫化橡膠耐磨性能的測(cè)定GB/T 1689-199836屈撓龜裂0220硫化橡膠或熱塑性橡膠屈撓龜裂和裂口增長(zhǎng)的測(cè)定（德墨西亞型）GB/T 13934-200637橡膠隔膜壽命0220汽車制運(yùn)氣室橡膠隔膜壽命試驗(yàn)方法HG/T 2950-1999 附錄A38工作耐久性0220皮碗成品理化性能試驗(yàn)方法 HG2865-1997附錄A639沉淀022040金屬腐蝕0220皮碗成品理化性能試驗(yàn)方法 HG2865-1997附錄A441表觀密度0220泡沫塑料和橡膠

8、表觀(體積)密度的測(cè) 定GB/T6343-200942蒸發(fā)殘?jiān)?220食品用橡膠制品衛(wèi)生標(biāo)準(zhǔn)GB 4806.1-199443高錳酸鉀消耗量022044鋅含量022045重金屬含量022046游離硫0220橡膠 游離硫的測(cè)定 GB/T 15251-2008只用亞硫酸鈉法47自密封性0220醫(yī)用輸液橡膠瓶塞HG 2948-1988（1997）附錄B48pH變化值0220醫(yī)用輸液橡膠瓶塞HG 2948-1988（1997）附錄C49重金屬離子022050澄清度02201橡膠或熱塑性橡膠51重金屬鹽0220常規(guī)武器、艦艇用橡膠制品 混煉膠 HG6-669-1983的3.1052對(duì)銀腐蝕0220專用膠料

9、 HG6-878-1976附錄153金屬腐蝕0220汽車液壓盤式制動(dòng)缸用橡膠密封圈 HG/T 3612-1999的A254污染性0220車輛門窗橡膠密封條HG/T 3088-1999附錄A55尺寸公差0220橡膠制品的公差 第一部分：尺寸公差GB/T 3672.1-200256幾何公差0220橡膠制品的公差 第二部分：幾何公差GB/T 3672.2-20022普通液壓系統(tǒng) O形橡膠密封圈1尺寸0220液壓氣動(dòng)用O形橡膠密封圈尺寸系列及公差GB/T 3452.1-20052全部項(xiàng)目0220O形橡膠密封圈外觀質(zhì)量檢驗(yàn)標(biāo)準(zhǔn)GB/T 3452.2-20073全部項(xiàng)目0220普通液壓系統(tǒng)用O形橡膠密封圈

10、材料HG/T 2579-20083燃油用O形橡膠密封圈1全部項(xiàng)目0220燃油用O形橡膠密封圈材料HG/T 3089-20014橡膠密封件 給、排水管及污水管道用 接口密封圈1全部項(xiàng)目0220橡膠密封件 給、排水管及污水管道用接口密封圈 材料規(guī)范 GB/T 21873-20085燃?xì)廨斔凸芗芭浼肙形橡膠密封圈1全部項(xiàng)目0220燃?xì)廨斔凸芗芭浼孟鹉z密封圈膠料 HG/T 3092-1988(1997)6石油基油類輸送管道及連接件用O形橡膠密封圈1全部項(xiàng)目0220石油基油類輸送管道及連接件用橡膠密封制品膠料HG/T 3093-1988(1997)7耐高溫滑油O形橡膠密封圈1全部項(xiàng)目0220耐高溫滑

11、油O形橡膠密封圈材料HG/T 2021-19918酸堿用橡膠密封件1全部項(xiàng)目0220耐酸堿橡膠密封件材料HG/T 2181-20099旋轉(zhuǎn)軸唇形密封圈1全部項(xiàng)目0220旋轉(zhuǎn)軸唇形密封圈橡膠材料HG/T 2811-19962全部項(xiàng)目0220液壓傳動(dòng) 旋轉(zhuǎn)軸唇形密封圈設(shè)計(jì)規(guī)范GB/T 9877-20083外觀0220旋轉(zhuǎn)軸唇形密封圈外觀質(zhì)量GB/T 15326-19944尺寸0220密封元件為彈性體材料的旋轉(zhuǎn)軸唇形密封圈 第1部分:基本尺寸和公差GB/T 13871.1-20075全部項(xiàng)目0220密封元件為彈性體材料的旋轉(zhuǎn)軸唇形密封圈 第4部分:性能試驗(yàn)程序  GB/T 13871.4-

12、20076全部項(xiàng)目0220密封元件為熱塑性材料的旋轉(zhuǎn)軸唇形密封圈 第4部分:性能試驗(yàn)程序GB/T 21283.4-20087外觀缺陷識(shí)別0220密封元件為熱塑性材料的旋轉(zhuǎn)軸唇形密封圈 第5部分:外觀缺陷的識(shí)別 GB/T 21283.5-200810往復(fù)運(yùn)動(dòng)橡膠密封圈1全部項(xiàng)目0220往復(fù)運(yùn)動(dòng)密封圈橡膠材料 HG/T 2810-20082全部項(xiàng)目0220往復(fù)運(yùn)動(dòng)橡膠密封圈結(jié)構(gòu)尺寸系列第1部分： 單向密封橡膠密封圈GB/T 10708.1-20003全部項(xiàng)目0220往復(fù)運(yùn)動(dòng)橡膠密封圈結(jié)構(gòu)尺寸系列第2部分： 雙向密封橡膠密封圈GB/T 10708.2-20004全部項(xiàng)目0220往復(fù)運(yùn)動(dòng)橡膠密封圈結(jié)構(gòu)

13、尺寸系列 第3部分：橡膠防塵密封圈GB/T 10708.3-200010往復(fù)運(yùn)動(dòng)橡膠密封圈5外觀0220往復(fù)運(yùn)動(dòng)橡膠密封圈外觀質(zhì)量GB/T 15325-199411采煤綜合機(jī)械化設(shè)備橡膠件用膠料1全部項(xiàng)目0220采煤綜合機(jī)械化設(shè)備橡膠件用膠料HG/T 3326-200712食品用橡膠制品1全部項(xiàng)目0220食品用橡膠制品衛(wèi)生標(biāo)準(zhǔn)GB/T 4806.1-199413日用壓力鍋橡膠密封圈1全部項(xiàng)目0220日用壓力鍋橡膠密封圈HG/T 2943-1984(1997）14食品容器橡膠墊片1全部項(xiàng)目0220食品容器橡膠墊片HG/T 2944-1984(1997）15食品容器橡膠墊圈1全部項(xiàng)目0220食品容

14、器橡膠墊圈HG/T 2945-1984(1997）16汽車制動(dòng)氣室橡膠隔膜1全部項(xiàng)目0220汽車制動(dòng)氣室橡膠隔膜HG 2950-199917汽車液壓制動(dòng)橡膠皮碗1全部項(xiàng)目0220汽車液壓制動(dòng)橡膠皮碗HG 2865-199718車輛門窗橡膠密封條1全部項(xiàng)目0220車輛門窗橡膠密封條HG/T 3088-199919氯丁海綿橡膠粘貼式鋼門窗密閉條1全部項(xiàng)目0220氯丁海綿橡膠粘貼式鋼門窗密閉條JG/T 15-199920汽車用橡膠密封條1全部項(xiàng)目0220汽車用橡膠密封條QC/T 639-2004(2005)21拖拉機(jī)撓性萬(wàn)向節(jié)橡膠襯套1全部項(xiàng)目0220拖拉機(jī)撓性萬(wàn)向節(jié)橡膠襯套HG/T 2329-19

15、9222汽車用橡膠材料1部分項(xiàng)目0220汽車用硫化橡膠分類系統(tǒng)HG/T 2196-2004不測(cè)耐屈撓、低溫剛性、壓縮或剪切性能、壓縮屈撓、表面污染23汽車液壓制動(dòng)缸用橡膠護(hù)罩1全部項(xiàng)目0220汽車液壓制動(dòng)缸用橡膠護(hù)罩HG/T 2578-199424汽車液壓盤式制動(dòng)缸用橡膠密封圈1全部項(xiàng)目0220汽車液壓盤式制動(dòng)缸用橡膠密封圈HG/T 3612-199925鐵路機(jī)車車輛用制動(dòng)軟管墊圈1全部項(xiàng)目0220鐵路機(jī)車車輛用制動(dòng)軟管墊圈技術(shù)條件TB/T 1421-198226鐵路機(jī)車車輛用門窗密封膠墊1全部項(xiàng)目0220鐵路機(jī)車車輛用門窗密封膠墊技術(shù)條件TB/T 1422-198227醫(yī)用輸液橡膠瓶塞1部分

16、項(xiàng)目0220醫(yī)用輸液橡膠瓶塞HG 2948-1988（1997）不測(cè)異常毒性28液壓隔離式蓄能器用膠囊1部分項(xiàng)目0220液壓隔離式蓄能器用膠囊HG/T 2331-1992不測(cè)氣密性、耐久性29水閘橡膠密封件1全部項(xiàng)目0220水閘橡膠密封件HG/T 3096-200130110以下熱水輸送管橡膠密封圈1全部項(xiàng)目0220橡膠密封件-110熱水供應(yīng)管道的管接口密封圈-材料規(guī)范 HG/T 3097-200631混凝土道路伸縮縫用預(yù)成型硫化橡膠壓縮密封件材料1全部項(xiàng)目0220混凝土道路伸縮縫用預(yù)成型硫化橡膠壓縮密封件材料規(guī)范HG/T 3098-200432建筑橡膠密封墊預(yù)成型實(shí)心硫化的結(jié)構(gòu)密封

17、墊用材料1全部項(xiàng)目0220建筑橡膠密封墊 預(yù)成型實(shí)心硫化的結(jié)構(gòu)密封墊用材料規(guī)范HG/T 3099-200433硫化橡膠和熱塑性橡膠 建筑用預(yù)成型密封墊1全部項(xiàng)目0220硫化橡膠和熱塑性橡膠建筑用預(yù)成型密封墊的分類、要求和試驗(yàn)方法HG/T 3100-200434高分子防水材料1全部項(xiàng)目0220高分子防水材料第一部分：片材GB 18173.1-20062全部項(xiàng)目0220高分子防水材料 第二部分 止水帶GB 18173.2-20003全部項(xiàng)目0220高分子防水材料 第三部分 遇水膨脹橡膠GB/T 18173.3-200235高壓電器設(shè)備用橡膠密封件六氟化硫電器設(shè)備用橡膠密封件1全部項(xiàng)目0220高壓電

18、器設(shè)備用橡膠密封件 六氟化硫電器設(shè)備用橡膠密封件技術(shù)條件JB/T 7052-199336變壓器類產(chǎn)品用密封制品1部分項(xiàng)目0220變壓器類產(chǎn)品用密封件技術(shù)條件 第一部分 橡膠密封件JB/T 8448.1-2004不測(cè)變壓器油相容性37變壓器用橡膠材料1部分項(xiàng)目0220變壓器用橡膠材料HG/T 2887-1997不測(cè)變壓器油相容性38鐵路混凝土軌枕枕下彈性墊板1全部項(xiàng)目0220鐵路混凝土軌枕枕下彈性墊板TB/T 2629 -199539彩色電視機(jī)用橡膠高壓帽1全部項(xiàng)目0220彩色電視機(jī)用橡膠高壓帽HG/T 2294-200740彩色電視機(jī)用橡膠楔子1全部項(xiàng)目0220彩色電視機(jī)用橡膠楔子HG/T 2

19、296-200741管道接口用橡膠密封圈1全部項(xiàng)目0220橡膠 管道接口用密封圈制造質(zhì)量的建議 疵點(diǎn)的分類與類別GB/T 17604-199842模壓和壓出橡膠制品1全部項(xiàng)目0220模壓和壓出橡膠制品外觀質(zhì)量的一般規(guī)定 HG/T 3090-1987(1997)43常規(guī)武器、艦艇用橡膠制品混煉膠1全部項(xiàng)目0220常規(guī)武器、艦艇用橡膠制品混煉膠 HG6-669-198344常規(guī)武器、艦艇用橡膠零件1全部項(xiàng)目0220常規(guī)武器、艦艇用橡膠零件 HG6-670-198345專用膠料1全部項(xiàng)目0220專用膠料HG6-878-197646航空工業(yè)橡膠零件及型材用膠料1全部項(xiàng)目0220航空工業(yè)橡膠零件及型材用

20、膠料 GJB 5258-200347航空橡膠零件1全部項(xiàng)目0220航空橡膠零件HG6-409-197948耐液壓油和燃油丁腈膠料1全部項(xiàng)目0220耐液壓油和燃油丁腈橡膠膠料規(guī)范GJB 250A-199649預(yù)應(yīng)力與自應(yīng)力鋼筋混凝土管用橡膠密封圈1全部項(xiàng)目0220預(yù)應(yīng)力與自應(yīng)力鋼筋混凝土管用橡膠密封圈JC/T 748-1987（1996）50排水管道接口密封件1全部項(xiàng)目0220彈性體密封件 排水管道接口密封件材料要求 熱塑性彈性體GB/T 21874-2008No. CNAS L1138 第 26 頁(yè) 共 26 頁(yè) The scope of the accreditation in Chines

21、e remains the definitive version. CHINA NATIONAL ACCREDITATION SERVICE FOR CONFORMITY ASSESSMENTAPPENDIX OF ACCREDITATION CERTIFICATE(Registration No. CNAS L1138) NAME: Northwest China Research and Design Institute of Rubber and Plastics Test Laboratory for Rubber Sealing ProductsADDRESS：No.2, Xihua

22、 Road, Xianyang, Shanxi, ChinaDate of Issue: 2009-07-24 Date of Expiry: 2012-07-23Date of Update：2010-10-19APPENDIX 1 SCOPE OF ACCREDITED TESTINGTest ObjectItem/ParameterCode of FieldTitle, Code of Standard or MethodLimitationNoteItem/ Parameter1Rubber, vulcanized or thermoplastic Determination1Size

23、0220Rubber-General procedures for preparing and conditioning test pieces for physical test methods GB/T 2941-20062Hardness0220Rubber vulcanized or thermoplastic Determination of indentation hardness Part 1:Duromerer method(Shore hardness)GB/T 531.1-2008Rubber ,vulcanized or thermoplastic Determinati

24、on of hardness(hardness between 10 IRHD and 100IRHD)GB/T 6031-19983Tensile strength0220Rubber ,vulcanized or thermoplastic - Determination of tensile stress-strain propertiesGB/T 528-20094Elongation at break02205Tensile stress at a given elongation02206Set after break02201Rubber, vulcanized or therm

25、oplastic Determination7Tear strength0220Rubber vulcanized or thermoplastic Determination of tear strength (Trouser angle and crescent test pieces) GB/T 529-20088compression stress relaxation0220Rubber vulcanized or thermoplastic Determination of stress relaxation in compression at ambient and at ele

26、vated temperatures GB/T 1685-20089Adhesion strength0220Rubber ,vulcanized or thermoplastic - Determination of adhesion to textile fabric GB/T 532-2008Rubber ,vulcanized or thermoplastic - Determination of adhesion to metal -180°Peel test method GB/T 15254-1994Rubber ,vulcanized or thermoplastic

27、 - Determination of adhesion to a rigid substrate -90 degrees peel method GB/T 7760-2003Rubber ,vulcanized or thermoplastic - Determination of adhesion to metal Tension method GB/T 11211-2009Rubber, vulcanized Method for determination of strength properties of adhesive to metal in shear by tension l

28、oading GB/T 13936-19921Rubber, vulcanized or thermoplastic Determination10compression set0220Rubber ,vulcanized or thermoplastic - Determination of compression set at ambient elevated or low temperatures GB/T 7759-199611Accelerated ageing and heat resistance tests Air-oven method*0220Rubber ,vulcani

29、zed or thermoplastic Accelerated ageing and heat resistance tests Air-oven method GB/T 3512-200112resistance to liquids test0220Rubber ,vulcanized or thermoplastic -Determination of the effect of liquids GB/T 1690-1992(2006)13Brittleness temperature（single test piece method）0220Rubber ,vulcanized -D

30、etermination of low temperature brittleness(single test piece method ) GB/T 1682-199414Low temperature brittleness (multiple test piece method)0220Rubber vulcanized-Determination of low-temperature brittleness(multiple test piece method) GB/T 15256-199415Resistance to ozone cracking0220Rubber ,vulca

31、nized or thermoplastic Resistance to ozone cracking Static strain testGB/T 7762-200316resistance to artificial weathering0220Rubber, vulcanized or thermoplastic Resistance to weathering GB/T 3511-200817resilience0220Rubber Determination of rebound resilience of vulcanizates GB/T 1681-200918tension f

32、atigue0220Rubber ,vulcanized -Determination of tension fatigue GB/T 1688-20081Rubber, vulcanized or thermoplastic Determination19compression stress-strain0220Rubber ,vulcanized or thermoplastic - Determination of compression stress-strain propertiesGB/T 7757-200920density0220Rubber vulcanized Determ

33、ination of density GB/T 533-200821Coefficient of cold resistance und compression0220Rubber vulcanized-Determination of coefficient of resistance under compressionHG/T 3866-200822insulation resistivity0220Vulcanized rubber Determination of the insulation resistivityGB/T 1692-200823dielectric constant

34、 and dielectric loss tangent0220Rubber vulcanizedDetermination of dielectric constant and dielectric loss tangent GB/T 1693-200724electrical breakdown strength0220Rubber vulcanized Determination of electrical breakdown strength and voltage resistant at commercial power frequency GB/T 1695-200525flam

35、mability0220Rubber-Determination of flammability by oxygen index GB/T 10707-200826thermal conductivity0220Rubber-Determination of thermal conductivity by means of transient hot-wire method GB/T 11205-200927qualitative analysis0220Rubber Indentification Infra red spectrometric method GB/T 7764-200128

36、quantitative analysis0220Rubber and rubber products-determination of composition by thermogravimetry GB/T 14837-199329temperature-retracti0220Rubber vulcanized-determination of low-temperature characteristics temperature retraction procedure(TR test) GB/T 7758-200230Salt fog test0220Environmental te

37、st methods for military equipments-Salt fog test GJB 150.11A-200931Mooney viscosity0220Rubber，unvulcanized-Determinations using a shearing-disc viscometer-Part 1:Determination of Mooney viscosity GB/T 1232.1-20001Rubber, vulcanized or thermoplastic Determination32Shelf-life0220Method of accelerated

38、determination for Shelf-life of rubber static sealing parts  HG/T 3087-200133compatibility0220Test of compatibility between elastomeric material and hydraulic fluid GB/T 14832-200834rubber O-ringstest0220Test methods for rubber O-rings GB/T 5720-200835Akron0220Rubber vulcanized -Determination o

39、f abrasion resistance(Akron machine)GB/T 1689-199836flex cracks0220Rubber ,vulcanized or thermoplastic -Determination of flex cracking and crack growth(De mattia)GB/T 13934-200637rubber diaphragmss life0220Rubber diaphragms for brake chamber in automobiles HG/T 2950-1999 Appendix A38rubber cups

40、0220Hydraulic brake rubber cups for automobiles  HG2865-1997 Appendix A639Precipitation022040Metal corrosion0220Hydraulic brake rubber cups for automobiles HG2865-1997 Appendix A41Rubber, vulcanized or thermoplastic Determination41Apparent density0220Cellular plastics and rubbers-Determination

41、of apparent (bulk) density GB/T 6343-200942Evaporation residue0220Hygienic standard for foodstuff rubber products GB 4806.1-199443Potassium permanganate consumption022044Zinc content022045Heavy metal content022046Free sulfur0220Rubber - Determination of free sulfur GB/T 15251-2008Accreditedonly form

42、ethod of Na2SO347Self-sealing0220Medicinal rubber closures for the infusion HG 2948-1988（1997）Appendix B48pH s0220Medicinal rubber closures for the infusion HG 2948-1988（1997）Appendix C49Heavy metal ions022050Transparency022051Heavy metal salts0220Compounds for conventional weapons and naval ve

43、ssels HG6-669-1983的3.1052Corrosion of silver0220Compounds for special purposeHG6-878-1976 Appendix 11Rubber, vulcanized or thermoplastic Determination53Metal corrosion0220Rubber seals used for automobile hydraulic disc brake cylinders HG/T 3612-1999 Appendix A254pollution0220Rubber sealing strips of

44、 doors and windows for vehicles HG/T 3088-1999 Appendix A55Dimensional tolerances0220Rubber-Tolerances of products Part1 :Dimensional tolerances GB/T 3672.1-200256geometrical tolerances0220Rubber-Tolerances of products-Part 2:geometrical tolerances GB/T3672.2-20022Rubber O-rings for hydraulic system

45、1size0220Fluid power systems O rings Part1:inside diameters ,cross-sections ,tolerances and size identification code GB/T 3452.1-20052All Items0220Appearance quality acceptance criteria for rubber O-rings GB/T 3452.2-20073All Items0220Rubber material for O-rings -Used for common liquid pres-sure sys

46、tems HG/T 2579-20083Rubber O-rings for fuel1All Items0220Rubber mixture of O-ring seals for fuel HG/T 3089-20014Rubber seals-joint rings for water supply drainage and sewerage pipelines1All Items0220Rubber seals-joint rings for water supply ,drainage and sewerage pipelines-Specification for material

47、s GB/T 21873-20085Rubber O-rings for gas supply pipe and fittings1All Items0220Material of rubber seals used for gas supply pipes and fittings HG/T 3092-1988(1997)6Rubber O-rings for petroleum products supply pipe and fittings1All Items0220Rubber seals material for petroleum product supply pipes and

48、 fittings HG/T 3093-1988(1997)7High temperature lubricating oil resistant rubber O-rings1All Items0220Rubber seals materials of O-rings for high temperature lubricating oil HG/T 2021-19918Acid and alkali resistant rubber compounds for seals1All Items0220Acid and alkali resistant rubber compounds for

49、 seals HG/T 2181-20099Rotary shaft lip seals1All Items0220Rubber seals material for rotary shaft lip HG/T 2811-19962All Items0220Hydraulic fluid power-Guide specifications for designing rotary shaft lip type seals GB/T 9877-20083Appearance quality0220Appearance quality for rotary shaft lip type seals GB/T 15326-19944size0220Rotary shaft lip-type seals incorporating elastomeric sealing elements Part 1:seals