CAJ | 학술논문

《能力验证规则》CNAS-RL02:2007中明确规定,申请认可的实验室和已经通过认可的实验室要证明其在该领域具有的检验能力,参加能力验证、测量审核、与权威机构比对以及多家实验室间数据比对等系列质量活动是必经之路.在合成橡胶行业通过国家认可实验室较少,组织能力验证活动比较困难,为了满足合成橡胶行业有关生产企业及相关实验室的要求,国家合成橡胶质检中心牵头组织苯乙烯-丁二烯橡胶(SBR)1502产品全项分析实验室间数据比对.数据比对结果采用稳健统计技术进行了统计和分析,所有参加比对的实验室代表了该行业的测试水平.生胶门尼粘度、灰分、混炼胶门尼粘度和50 min 300%定伸应力等测试项目的测定结果较理想;挥发份、25 min 300%定伸应力、35 min 300%定伸应力、35 min拉伸强度和35 min扯断伸长率等测试项目出现的问题相对较多,均有两个以上实验室出现可疑值或离群值;部分实验室尚缺乏化学分析测试能力,应加强相关内容的培训,补充实验仪器的配置,积极参与实验室间比对,不断提高实验室化学分析测试水平.
《능력험증규칙》CNAS-RL02:2007중명학규정,신청인가적실험실화이경통과인가적실험실요증명기재해영역구유적검험능력,삼가능력험증、측량심핵、여권위궤구비대이급다가실험실간수거비대등계렬질량활동시필경지로.재합성상효행업통과국가인가실험실교소,조직능력험증활동비교곤난,위료만족합성상효행업유관생산기업급상관실험실적요구,국가합성상효질검중심견두조직분을희-정이희상효(SBR)1502산품전항분석실험실간수거비대.수거비대결과채용은건통계기술진행료통계화분석,소유삼가비대적실험실대표료해행업적측시수평.생효문니점도、회분、혼련효문니점도화50 min 300%정신응력등측시항목적측정결과교이상;휘발빈、25 min 300%정신응력、35 min 300%정신응력、35 min랍신강도화35 min차단신장솔등측시항목출현적문제상대교다,균유량개이상실험실출현가의치혹리군치;부분실험실상결핍화학분석측시능력,응가강상관내용적배훈,보충실험의기적배치,적겁삼여실험실간비대,불단제고실험실화학분석측시수평.
Rules for Proficiency Testing(CNAS-RL02:2007)explicitly stipulates that laboratories to apply for accreditation and accredited laboratories must demonstrate their testing ability in its field, it is the only way to join series of quality activities including ability validation, measurement and verification, comparison data with authorities. National accredited laboratories in the synthetic rubber industry are less, so it is more difficult to organize activities of proficiency testing. In order to satisfy the requirements of production enterprises and related laboratories in synthetic rubber industry, national quality supervision and inspection center of synthetic rubber organized interlaboratories comparison of analysis data of styrene butadiene rubber ( SBR ) 1502, statistics and analysis of comparison results were carried out by robust statistical technique, and all laboratories represented the industrial test level. The measurement results of raw rubber Mooney viscosity, ash, mix Mooney viscosity, tensile modulus at 300%in 50 min were ideal, but measurement results of volatile matter, tensile modulus at 300%in 25 min and 35 min, tensile strength and elongation at break in 35 min showed many problems, two or more laboratories appeared questionable values or outliers, part of the laboratories lacked the ability of chemical analysis and testing. Therefore, the related training content should be strengthen, the experimental instruments should be added,the interlaboratories comparison should be actively carried out.